/*
* fs/cifs/cifssmb.c
*
- * Copyright (C) International Business Machines Corp., 2002,2008
+ * Copyright (C) International Business Machines Corp., 2002,2010
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Contains the routines for constructing the SMB PDUs themselves
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/vfs.h>
+#include <linux/slab.h>
#include <linux/posix_acl_xattr.h>
#include <asm/uaccess.h>
#include "cifspdu.h"
#endif /* CONFIG_CIFS_WEAK_PW_HASH */
#endif /* CIFS_POSIX */
-/* Allocates buffer into dst and copies smb string from src to it.
- * caller is responsible for freeing dst if function returned 0.
- * returns:
- * on success - 0
- * on failure - errno
- */
-static int
-cifs_strncpy_to_host(char **dst, const char *src, const int maxlen,
- const bool is_unicode, const struct nls_table *nls_codepage)
-{
- int plen;
-
- if (is_unicode) {
- plen = UniStrnlen((wchar_t *)src, maxlen);
- *dst = kmalloc(plen + 2, GFP_KERNEL);
- if (!*dst)
- goto cifs_strncpy_to_host_ErrExit;
- cifs_strfromUCS_le(*dst, (__le16 *)src, plen, nls_codepage);
- } else {
- plen = strnlen(src, maxlen);
- *dst = kmalloc(plen + 2, GFP_KERNEL);
- if (!*dst)
- goto cifs_strncpy_to_host_ErrExit;
- strncpy(*dst, src, plen);
- }
- (*dst)[plen] = 0;
- (*dst)[plen+1] = 0; /* harmless for ASCII case, needed for Unicode */
- return 0;
-
-cifs_strncpy_to_host_ErrExit:
- cERROR(1, ("Failed to allocate buffer for string\n"));
- return -ENOMEM;
-}
-
-
/* Mark as invalid, all open files on tree connections since they
were closed when session to server was lost */
static void mark_open_files_invalid(struct cifsTconInfo *pTcon)
struct list_head *tmp1;
/* list all files open on tree connection and mark them invalid */
- write_lock(&GlobalSMBSeslock);
+ spin_lock(&cifs_file_list_lock);
list_for_each_safe(tmp, tmp1, &pTcon->openFileList) {
open_file = list_entry(tmp, struct cifsFileInfo, tlist);
open_file->invalidHandle = true;
+ open_file->oplock_break_cancelled = true;
}
- write_unlock(&GlobalSMBSeslock);
+ spin_unlock(&cifs_file_list_lock);
/* BB Add call to invalidate_inodes(sb) for all superblocks mounted
to this tcon */
}
-/* Allocate and return pointer to an SMB request buffer, and set basic
- SMB information in the SMB header. If the return code is zero, this
- function must have filled in request_buf pointer */
+/* reconnect the socket, tcon, and smb session if needed */
static int
-small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
- void **request_buf)
+cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command)
{
int rc = 0;
+ struct cifsSesInfo *ses;
+ struct TCP_Server_Info *server;
+ struct nls_table *nls_codepage;
- /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so
- check for tcp and smb session status done differently
- for those three - in the calling routine */
- if (tcon) {
- if (tcon->tidStatus == CifsExiting) {
- /* only tree disconnect, open, and write,
- (and ulogoff which does not have tcon)
- are allowed as we start force umount */
- if ((smb_command != SMB_COM_WRITE_ANDX) &&
- (smb_command != SMB_COM_OPEN_ANDX) &&
- (smb_command != SMB_COM_TREE_DISCONNECT)) {
- cFYI(1, ("can not send cmd %d while umounting",
- smb_command));
- return -ENODEV;
- }
+ /*
+ * SMBs NegProt, SessSetup, uLogoff do not have tcon yet so check for
+ * tcp and smb session status done differently for those three - in the
+ * calling routine
+ */
+ if (!tcon)
+ return 0;
+
+ ses = tcon->ses;
+ server = ses->server;
+
+ /*
+ * only tree disconnect, open, and write, (and ulogoff which does not
+ * have tcon) are allowed as we start force umount
+ */
+ if (tcon->tidStatus == CifsExiting) {
+ if (smb_command != SMB_COM_WRITE_ANDX &&
+ smb_command != SMB_COM_OPEN_ANDX &&
+ smb_command != SMB_COM_TREE_DISCONNECT) {
+ cFYI(1, "can not send cmd %d while umounting",
+ smb_command);
+ return -ENODEV;
}
- if ((tcon->ses) && (tcon->ses->status != CifsExiting) &&
- (tcon->ses->server)) {
- struct nls_table *nls_codepage;
- /* Give Demultiplex thread up to 10 seconds to
- reconnect, should be greater than cifs socket
- timeout which is 7 seconds */
- while (tcon->ses->server->tcpStatus ==
- CifsNeedReconnect) {
- wait_event_interruptible_timeout(tcon->ses->server->response_q,
- (tcon->ses->server->tcpStatus ==
- CifsGood), 10 * HZ);
- if (tcon->ses->server->tcpStatus ==
- CifsNeedReconnect) {
- /* on "soft" mounts we wait once */
- if (!tcon->retry ||
- (tcon->ses->status == CifsExiting)) {
- cFYI(1, ("gave up waiting on "
- "reconnect in smb_init"));
- return -EHOSTDOWN;
- } /* else "hard" mount - keep retrying
- until process is killed or server
- comes back on-line */
- } else /* TCP session is reestablished now */
- break;
- }
+ }
- nls_codepage = load_nls_default();
- /* need to prevent multiple threads trying to
- simultaneously reconnect the same SMB session */
- down(&tcon->ses->sesSem);
- if (tcon->ses->status == CifsNeedReconnect)
- rc = cifs_setup_session(0, tcon->ses,
- nls_codepage);
- if (!rc && (tcon->tidStatus == CifsNeedReconnect)) {
- mark_open_files_invalid(tcon);
- rc = CIFSTCon(0, tcon->ses, tcon->treeName,
- tcon, nls_codepage);
- up(&tcon->ses->sesSem);
- /* BB FIXME add code to check if wsize needs
- update due to negotiated smb buffer size
- shrinking */
- if (rc == 0) {
- atomic_inc(&tconInfoReconnectCount);
- /* tell server Unix caps we support */
- if (tcon->ses->capabilities & CAP_UNIX)
- reset_cifs_unix_caps(
- 0 /* no xid */,
- tcon,
- NULL /* we do not know sb */,
- NULL /* no vol info */);
- }
+ /*
+ * Give demultiplex thread up to 10 seconds to reconnect, should be
+ * greater than cifs socket timeout which is 7 seconds
+ */
+ while (server->tcpStatus == CifsNeedReconnect) {
+ wait_event_interruptible_timeout(server->response_q,
+ (server->tcpStatus == CifsGood), 10 * HZ);
- cFYI(1, ("reconnect tcon rc = %d", rc));
- /* Removed call to reopen open files here.
- It is safer (and faster) to reopen files
- one at a time as needed in read and write */
-
- /* Check if handle based operation so we
- know whether we can continue or not without
- returning to caller to reset file handle */
- switch (smb_command) {
- case SMB_COM_READ_ANDX:
- case SMB_COM_WRITE_ANDX:
- case SMB_COM_CLOSE:
- case SMB_COM_FIND_CLOSE2:
- case SMB_COM_LOCKING_ANDX: {
- unload_nls(nls_codepage);
- return -EAGAIN;
- }
- }
- } else {
- up(&tcon->ses->sesSem);
- }
- unload_nls(nls_codepage);
+ /* is TCP session is reestablished now ?*/
+ if (server->tcpStatus != CifsNeedReconnect)
+ break;
- } else {
- return -EIO;
+ /*
+ * on "soft" mounts we wait once. Hard mounts keep
+ * retrying until process is killed or server comes
+ * back on-line
+ */
+ if (!tcon->retry) {
+ cFYI(1, "gave up waiting on reconnect in smb_init");
+ return -EHOSTDOWN;
}
}
+
+ if (!ses->need_reconnect && !tcon->need_reconnect)
+ return 0;
+
+ nls_codepage = load_nls_default();
+
+ /*
+ * need to prevent multiple threads trying to simultaneously
+ * reconnect the same SMB session
+ */
+ mutex_lock(&ses->session_mutex);
+ rc = cifs_negotiate_protocol(0, ses);
+ if (rc == 0 && ses->need_reconnect)
+ rc = cifs_setup_session(0, ses, nls_codepage);
+
+ /* do we need to reconnect tcon? */
+ if (rc || !tcon->need_reconnect) {
+ mutex_unlock(&ses->session_mutex);
+ goto out;
+ }
+
+ mark_open_files_invalid(tcon);
+ rc = CIFSTCon(0, ses, tcon->treeName, tcon, nls_codepage);
+ mutex_unlock(&ses->session_mutex);
+ cFYI(1, "reconnect tcon rc = %d", rc);
+
+ if (rc)
+ goto out;
+
+ /*
+ * FIXME: check if wsize needs updated due to negotiated smb buffer
+ * size shrinking
+ */
+ atomic_inc(&tconInfoReconnectCount);
+
+ /* tell server Unix caps we support */
+ if (ses->capabilities & CAP_UNIX)
+ reset_cifs_unix_caps(0, tcon, NULL, NULL);
+
+ /*
+ * Removed call to reopen open files here. It is safer (and faster) to
+ * reopen files one at a time as needed in read and write.
+ *
+ * FIXME: what about file locks? don't we need to reclaim them ASAP?
+ */
+
+out:
+ /*
+ * Check if handle based operation so we know whether we can continue
+ * or not without returning to caller to reset file handle
+ */
+ switch (smb_command) {
+ case SMB_COM_READ_ANDX:
+ case SMB_COM_WRITE_ANDX:
+ case SMB_COM_CLOSE:
+ case SMB_COM_FIND_CLOSE2:
+ case SMB_COM_LOCKING_ANDX:
+ rc = -EAGAIN;
+ }
+
+ unload_nls(nls_codepage);
+ return rc;
+}
+
+/* Allocate and return pointer to an SMB request buffer, and set basic
+ SMB information in the SMB header. If the return code is zero, this
+ function must have filled in request_buf pointer */
+static int
+small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf)
+{
+ int rc;
+
+ rc = cifs_reconnect_tcon(tcon, smb_command);
if (rc)
return rc;
if (tcon != NULL)
cifs_stats_inc(&tcon->num_smbs_sent);
- return rc;
+ return 0;
}
int
/* If the return code is zero, this function must fill in request_buf pointer */
static int
-smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
- void **request_buf /* returned */ ,
- void **response_buf /* returned */ )
+__smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf, void **response_buf)
{
- int rc = 0;
-
- /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so
- check for tcp and smb session status done differently
- for those three - in the calling routine */
- if (tcon) {
- if (tcon->tidStatus == CifsExiting) {
- /* only tree disconnect, open, and write,
- (and ulogoff which does not have tcon)
- are allowed as we start force umount */
- if ((smb_command != SMB_COM_WRITE_ANDX) &&
- (smb_command != SMB_COM_OPEN_ANDX) &&
- (smb_command != SMB_COM_TREE_DISCONNECT)) {
- cFYI(1, ("can not send cmd %d while umounting",
- smb_command));
- return -ENODEV;
- }
- }
-
- if ((tcon->ses) && (tcon->ses->status != CifsExiting) &&
- (tcon->ses->server)) {
- struct nls_table *nls_codepage;
- /* Give Demultiplex thread up to 10 seconds to
- reconnect, should be greater than cifs socket
- timeout which is 7 seconds */
- while (tcon->ses->server->tcpStatus ==
- CifsNeedReconnect) {
- wait_event_interruptible_timeout(tcon->ses->server->response_q,
- (tcon->ses->server->tcpStatus ==
- CifsGood), 10 * HZ);
- if (tcon->ses->server->tcpStatus ==
- CifsNeedReconnect) {
- /* on "soft" mounts we wait once */
- if (!tcon->retry ||
- (tcon->ses->status == CifsExiting)) {
- cFYI(1, ("gave up waiting on "
- "reconnect in smb_init"));
- return -EHOSTDOWN;
- } /* else "hard" mount - keep retrying
- until process is killed or server
- comes on-line */
- } else /* TCP session is reestablished now */
- break;
- }
- nls_codepage = load_nls_default();
- /* need to prevent multiple threads trying to
- simultaneously reconnect the same SMB session */
- down(&tcon->ses->sesSem);
- if (tcon->ses->status == CifsNeedReconnect)
- rc = cifs_setup_session(0, tcon->ses,
- nls_codepage);
- if (!rc && (tcon->tidStatus == CifsNeedReconnect)) {
- mark_open_files_invalid(tcon);
- rc = CIFSTCon(0, tcon->ses, tcon->treeName,
- tcon, nls_codepage);
- up(&tcon->ses->sesSem);
- /* BB FIXME add code to check if wsize needs
- update due to negotiated smb buffer size
- shrinking */
- if (rc == 0) {
- atomic_inc(&tconInfoReconnectCount);
- /* tell server Unix caps we support */
- if (tcon->ses->capabilities & CAP_UNIX)
- reset_cifs_unix_caps(
- 0 /* no xid */,
- tcon,
- NULL /* do not know sb */,
- NULL /* no vol info */);
- }
-
- cFYI(1, ("reconnect tcon rc = %d", rc));
- /* Removed call to reopen open files here.
- It is safer (and faster) to reopen files
- one at a time as needed in read and write */
-
- /* Check if handle based operation so we
- know whether we can continue or not without
- returning to caller to reset file handle */
- switch (smb_command) {
- case SMB_COM_READ_ANDX:
- case SMB_COM_WRITE_ANDX:
- case SMB_COM_CLOSE:
- case SMB_COM_FIND_CLOSE2:
- case SMB_COM_LOCKING_ANDX: {
- unload_nls(nls_codepage);
- return -EAGAIN;
- }
- }
- } else {
- up(&tcon->ses->sesSem);
- }
- unload_nls(nls_codepage);
-
- } else {
- return -EIO;
- }
- }
- if (rc)
- return rc;
-
*request_buf = cifs_buf_get();
if (*request_buf == NULL) {
/* BB should we add a retry in here if not a writepage? */
if (tcon != NULL)
cifs_stats_inc(&tcon->num_smbs_sent);
- return rc;
+ return 0;
+}
+
+/* If the return code is zero, this function must fill in request_buf pointer */
+static int
+smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf, void **response_buf)
+{
+ int rc;
+
+ rc = cifs_reconnect_tcon(tcon, smb_command);
+ if (rc)
+ return rc;
+
+ return __smb_init(smb_command, wct, tcon, request_buf, response_buf);
+}
+
+static int
+smb_init_no_reconnect(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf, void **response_buf)
+{
+ if (tcon->ses->need_reconnect || tcon->need_reconnect)
+ return -EHOSTDOWN;
+
+ return __smb_init(smb_command, wct, tcon, request_buf, response_buf);
}
static int validate_t2(struct smb_t2_rsp *pSMB)
{
- int rc = -EINVAL;
- int total_size;
- char *pBCC;
+ unsigned int total_size;
+
+ /* check for plausible wct */
+ if (pSMB->hdr.WordCount < 10)
+ goto vt2_err;
- /* check for plausible wct, bcc and t2 data and parm sizes */
/* check for parm and data offset going beyond end of smb */
- if (pSMB->hdr.WordCount >= 10) {
- if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) &&
- (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) {
- /* check that bcc is at least as big as parms + data */
- /* check that bcc is less than negotiated smb buffer */
- total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount);
- if (total_size < 512) {
- total_size +=
- le16_to_cpu(pSMB->t2_rsp.DataCount);
- /* BCC le converted in SendReceive */
- pBCC = (pSMB->hdr.WordCount * 2) +
- sizeof(struct smb_hdr) +
- (char *)pSMB;
- if ((total_size <= (*(u16 *)pBCC)) &&
- (total_size <
- CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) {
- return 0;
- }
- }
- }
- }
+ if (get_unaligned_le16(&pSMB->t2_rsp.ParameterOffset) > 1024 ||
+ get_unaligned_le16(&pSMB->t2_rsp.DataOffset) > 1024)
+ goto vt2_err;
+
+ /* check that bcc is at least as big as parms + data */
+ /* check that bcc is less than negotiated smb buffer */
+ total_size = get_unaligned_le16(&pSMB->t2_rsp.ParameterCount);
+ if (total_size >= 512)
+ goto vt2_err;
+
+ total_size += get_unaligned_le16(&pSMB->t2_rsp.DataCount);
+ if (total_size > get_bcc(&pSMB->hdr) ||
+ total_size >= CIFSMaxBufSize + MAX_CIFS_HDR_SIZE)
+ goto vt2_err;
+
+ return 0;
+vt2_err:
cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB,
sizeof(struct smb_t2_rsp) + 16);
- return rc;
+ return -EINVAL;
}
+
int
CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
{
struct TCP_Server_Info *server;
u16 count;
unsigned int secFlags;
- u16 dialect;
if (ses->server)
server = ses->server;
if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL)))
secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */
else /* if override flags set only sign/seal OR them with global auth */
- secFlags = extended_security | ses->overrideSecFlg;
+ secFlags = global_secflags | ses->overrideSecFlg;
- cFYI(1, ("secFlags 0x%x", secFlags));
+ cFYI(1, "secFlags 0x%x", secFlags);
pSMB->hdr.Mid = GetNextMid(server);
pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS);
if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5)
pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) {
- cFYI(1, ("Kerberos only mechanism, enable extended security"));
+ cFYI(1, "Kerberos only mechanism, enable extended security");
+ pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
+ } else if ((secFlags & CIFSSEC_MUST_NTLMSSP) == CIFSSEC_MUST_NTLMSSP)
+ pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
+ else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_NTLMSSP) {
+ cFYI(1, "NTLMSSP only mechanism, enable extended security");
pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC;
}
if (rc != 0)
goto neg_err_exit;
- dialect = le16_to_cpu(pSMBr->DialectIndex);
- cFYI(1, ("Dialect: %d", dialect));
+ server->dialect = le16_to_cpu(pSMBr->DialectIndex);
+ cFYI(1, "Dialect: %d", server->dialect);
/* Check wct = 1 error case */
- if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) {
+ if ((pSMBr->hdr.WordCount < 13) || (server->dialect == BAD_PROT)) {
/* core returns wct = 1, but we do not ask for core - otherwise
small wct just comes when dialect index is -1 indicating we
could not negotiate a common dialect */
goto neg_err_exit;
#ifdef CONFIG_CIFS_WEAK_PW_HASH
} else if ((pSMBr->hdr.WordCount == 13)
- && ((dialect == LANMAN_PROT)
- || (dialect == LANMAN2_PROT))) {
+ && ((server->dialect == LANMAN_PROT)
+ || (server->dialect == LANMAN2_PROT))) {
__s16 tmp;
struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr;
(secFlags & CIFSSEC_MAY_PLNTXT))
server->secType = LANMAN;
else {
- cERROR(1, ("mount failed weak security disabled"
- " in /proc/fs/cifs/SecurityFlags"));
+ cERROR(1, "mount failed weak security disabled"
+ " in /proc/fs/cifs/SecurityFlags");
rc = -EOPNOTSUPP;
goto neg_err_exit;
}
server->maxReq = le16_to_cpu(rsp->MaxMpxCount);
server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize),
(__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
- GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey);
+ server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs);
/* even though we do not use raw we might as well set this
accurately, in case we ever find a need for it */
if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) {
- server->maxRw = 0xFF00;
+ server->max_rw = 0xFF00;
server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE;
} else {
- server->maxRw = 0;/* we do not need to use raw anyway */
+ server->max_rw = 0;/* do not need to use raw anyway */
server->capabilities = CAP_MPX_MODE;
}
tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone);
int val, seconds, remain, result;
struct timespec ts, utc;
utc = CURRENT_TIME;
- ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date),
- le16_to_cpu(rsp->SrvTime.Time));
- cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d",
+ ts = cnvrtDosUnixTm(rsp->SrvTime.Date,
+ rsp->SrvTime.Time, 0);
+ cFYI(1, "SrvTime %d sec since 1970 (utc: %d) diff: %d",
(int)ts.tv_sec, (int)utc.tv_sec,
- (int)(utc.tv_sec - ts.tv_sec)));
+ (int)(utc.tv_sec - ts.tv_sec));
val = (int)(utc.tv_sec - ts.tv_sec);
seconds = abs(val);
result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ;
server->timeAdj = (int)tmp;
server->timeAdj *= 60; /* also in seconds */
}
- cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj));
+ cFYI(1, "server->timeAdj: %d seconds", server->timeAdj);
/* BB get server time for time conversions and add
if (rsp->EncryptionKeyLength ==
cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) {
- memcpy(server->cryptKey, rsp->EncryptionKey,
+ memcpy(ses->server->cryptkey, rsp->EncryptionKey,
CIFS_CRYPTO_KEY_SIZE);
} else if (server->secMode & SECMODE_PW_ENCRYPT) {
rc = -EIO; /* need cryptkey unless plain text */
goto neg_err_exit;
}
- cFYI(1, ("LANMAN negotiated"));
+ cFYI(1, "LANMAN negotiated");
/* we will not end up setting signing flags - as no signing
was in LANMAN and server did not return the flags on */
goto signing_check;
#else /* weak security disabled */
} else if (pSMBr->hdr.WordCount == 13) {
- cERROR(1, ("mount failed, cifs module not built "
- "with CIFS_WEAK_PW_HASH support"));
- rc = -EOPNOTSUPP;
+ cERROR(1, "mount failed, cifs module not built "
+ "with CIFS_WEAK_PW_HASH support");
+ rc = -EOPNOTSUPP;
#endif /* WEAK_PW_HASH */
goto neg_err_exit;
} else if (pSMBr->hdr.WordCount != 17) {
/* else wct == 17 NTLM */
server->secMode = pSMBr->SecurityMode;
if ((server->secMode & SECMODE_USER) == 0)
- cFYI(1, ("share mode security"));
+ cFYI(1, "share mode security");
if ((server->secMode & SECMODE_PW_ENCRYPT) == 0)
#ifdef CONFIG_CIFS_WEAK_PW_HASH
if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0)
#endif /* CIFS_WEAK_PW_HASH */
- cERROR(1, ("Server requests plain text password"
- " but client support disabled"));
+ cERROR(1, "Server requests plain text password"
+ " but client support disabled");
if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2)
server->secType = NTLMv2;
server->secType = NTLMv2;
else if (secFlags & CIFSSEC_MAY_KRB5)
server->secType = Kerberos;
+ else if (secFlags & CIFSSEC_MAY_NTLMSSP)
+ server->secType = RawNTLMSSP;
else if (secFlags & CIFSSEC_MAY_LANMAN)
server->secType = LANMAN;
/* #ifdef CONFIG_CIFS_EXPERIMENTAL
#endif */
else {
rc = -EOPNOTSUPP;
- cERROR(1, ("Invalid security type"));
+ cERROR(1, "Invalid security type");
goto neg_err_exit;
}
/* else ... any others ...? */
/* probably no need to store and check maxvcs */
server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize),
(__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE);
- server->maxRw = le32_to_cpu(pSMBr->MaxRawSize);
- cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf));
- GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey);
+ server->max_rw = le32_to_cpu(pSMBr->MaxRawSize);
+ cFYI(DBG2, "Max buf = %d", ses->server->maxBuf);
server->capabilities = le32_to_cpu(pSMBr->Capabilities);
server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone);
server->timeAdj *= 60;
if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) {
- memcpy(server->cryptKey, pSMBr->u.EncryptionKey,
+ memcpy(ses->server->cryptkey, pSMBr->u.EncryptionKey,
CIFS_CRYPTO_KEY_SIZE);
} else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC)
&& (pSMBr->EncryptionKeyLength == 0)) {
rc = -EIO;
goto neg_err_exit;
}
-
- if (server->socketUseCount.counter > 1) {
+ spin_lock(&cifs_tcp_ses_lock);
+ if (server->srv_count > 1) {
+ spin_unlock(&cifs_tcp_ses_lock);
if (memcmp(server->server_GUID,
pSMBr->u.extended_response.
GUID, 16) != 0) {
- cFYI(1, ("server UID changed"));
+ cFYI(1, "server UID changed");
memcpy(server->server_GUID,
pSMBr->u.extended_response.GUID,
16);
}
- } else
+ } else {
+ spin_unlock(&cifs_tcp_ses_lock);
memcpy(server->server_GUID,
pSMBr->u.extended_response.GUID, 16);
+ }
if (count == 16) {
server->secType = RawNTLMSSP;
} else {
rc = decode_negTokenInit(pSMBr->u.extended_response.
- SecurityBlob,
- count - 16,
- &server->secType);
+ SecurityBlob, count - 16,
+ server);
if (rc == 1)
rc = 0;
else
rc = -EINVAL;
+ if (server->secType == Kerberos) {
+ if (!server->sec_kerberos &&
+ !server->sec_mskerberos)
+ rc = -EOPNOTSUPP;
+ } else if (server->secType == RawNTLMSSP) {
+ if (!server->sec_ntlmssp)
+ rc = -EOPNOTSUPP;
+ } else
+ rc = -EOPNOTSUPP;
}
} else
server->capabilities &= ~CAP_EXTENDED_SECURITY;
if ((secFlags & CIFSSEC_MAY_SIGN) == 0) {
/* MUST_SIGN already includes the MAY_SIGN FLAG
so if this is zero it means that signing is disabled */
- cFYI(1, ("Signing disabled"));
+ cFYI(1, "Signing disabled");
if (server->secMode & SECMODE_SIGN_REQUIRED) {
- cERROR(1, ("Server requires "
+ cERROR(1, "Server requires "
"packet signing to be enabled in "
- "/proc/fs/cifs/SecurityFlags."));
+ "/proc/fs/cifs/SecurityFlags.");
rc = -EOPNOTSUPP;
}
server->secMode &=
~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
} else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) {
/* signing required */
- cFYI(1, ("Must sign - secFlags 0x%x", secFlags));
+ cFYI(1, "Must sign - secFlags 0x%x", secFlags);
if ((server->secMode &
(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) {
- cERROR(1,
- ("signing required but server lacks support"));
+ cERROR(1, "signing required but server lacks support");
rc = -EOPNOTSUPP;
} else
server->secMode |= SECMODE_SIGN_REQUIRED;
neg_err_exit:
cifs_buf_release(pSMB);
- cFYI(1, ("negprot rc %d", rc));
+ cFYI(1, "negprot rc %d", rc);
return rc;
}
struct smb_hdr *smb_buffer;
int rc = 0;
- cFYI(1, ("In tree disconnect"));
- /*
- * If last user of the connection and
- * connection alive - disconnect it
- * If this is the last connection on the server session disconnect it
- * (and inside session disconnect we should check if tcp socket needs
- * to be freed and kernel thread woken up).
- */
- if (tcon)
- down(&tcon->tconSem);
- else
- return -EIO;
+ cFYI(1, "In tree disconnect");
- atomic_dec(&tcon->useCount);
- if (atomic_read(&tcon->useCount) > 0) {
- up(&tcon->tconSem);
- return -EBUSY;
- }
+ /* BB: do we need to check this? These should never be NULL. */
+ if ((tcon->ses == NULL) || (tcon->ses->server == NULL))
+ return -EIO;
- /* No need to return error on this operation if tid invalidated and
- closed on server already e.g. due to tcp session crashing */
- if (tcon->tidStatus == CifsNeedReconnect) {
- up(&tcon->tconSem);
+ /*
+ * No need to return error on this operation if tid invalidated and
+ * closed on server already e.g. due to tcp session crashing. Also,
+ * the tcon is no longer on the list, so no need to take lock before
+ * checking this.
+ */
+ if ((tcon->need_reconnect) || (tcon->ses->need_reconnect))
return 0;
- }
- if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) {
- up(&tcon->tconSem);
- return -EIO;
- }
rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon,
(void **)&smb_buffer);
- if (rc) {
- up(&tcon->tconSem);
+ if (rc)
return rc;
- }
rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0);
if (rc)
- cFYI(1, ("Tree disconnect failed %d", rc));
-
- up(&tcon->tconSem);
+ cFYI(1, "Tree disconnect failed %d", rc);
/* No need to return error on this operation if tid invalidated and
- closed on server already e.g. due to tcp session crashing */
+ closed on server already e.g. due to tcp session crashing */
if (rc == -EAGAIN)
rc = 0;
return rc;
}
+/*
+ * This is a no-op for now. We're not really interested in the reply, but
+ * rather in the fact that the server sent one and that server->lstrp
+ * gets updated.
+ *
+ * FIXME: maybe we should consider checking that the reply matches request?
+ */
+static void
+cifs_echo_callback(struct mid_q_entry *mid)
+{
+ struct TCP_Server_Info *server = mid->callback_data;
+
+ DeleteMidQEntry(mid);
+ atomic_dec(&server->inFlight);
+ wake_up(&server->request_q);
+}
+
+int
+CIFSSMBEcho(struct TCP_Server_Info *server)
+{
+ ECHO_REQ *smb;
+ int rc = 0;
+
+ cFYI(1, "In echo request");
+
+ rc = small_smb_init(SMB_COM_ECHO, 0, NULL, (void **)&smb);
+ if (rc)
+ return rc;
+
+ /* set up echo request */
+ smb->hdr.Tid = cpu_to_le16(0xffff);
+ smb->hdr.WordCount = 1;
+ put_unaligned_le16(1, &smb->EchoCount);
+ put_bcc_le(1, &smb->hdr);
+ smb->Data[0] = 'a';
+ smb->hdr.smb_buf_length += 3;
+
+ rc = cifs_call_async(server, (struct smb_hdr *)smb,
+ cifs_echo_callback, server);
+ if (rc)
+ cFYI(1, "Echo request failed: %d", rc);
+
+ cifs_small_buf_release(smb);
+
+ return rc;
+}
+
int
CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
{
LOGOFF_ANDX_REQ *pSMB;
int rc = 0;
- cFYI(1, ("In SMBLogoff for session disconnect"));
- if (ses)
- down(&ses->sesSem);
- else
+ cFYI(1, "In SMBLogoff for session disconnect");
+
+ /*
+ * BB: do we need to check validity of ses and server? They should
+ * always be valid since we have an active reference. If not, that
+ * should probably be a BUG()
+ */
+ if (!ses || !ses->server)
return -EIO;
- atomic_dec(&ses->inUse);
- if (atomic_read(&ses->inUse) > 0) {
- up(&ses->sesSem);
- return -EBUSY;
- }
+ mutex_lock(&ses->session_mutex);
+ if (ses->need_reconnect)
+ goto session_already_dead; /* no need to send SMBlogoff if uid
+ already closed due to reconnect */
rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB);
if (rc) {
- up(&ses->sesSem);
+ mutex_unlock(&ses->session_mutex);
return rc;
}
- if (ses->server) {
- pSMB->hdr.Mid = GetNextMid(ses->server);
+ pSMB->hdr.Mid = GetNextMid(ses->server);
- if (ses->server->secMode &
+ if (ses->server->secMode &
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
- }
pSMB->hdr.Uid = ses->Suid;
pSMB->AndXCommand = 0xFF;
rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
- if (ses->server) {
- atomic_dec(&ses->server->socketUseCount);
- if (atomic_read(&ses->server->socketUseCount) == 0) {
- spin_lock(&GlobalMid_Lock);
- ses->server->tcpStatus = CifsExiting;
- spin_unlock(&GlobalMid_Lock);
- rc = -ESHUTDOWN;
- }
- }
- up(&ses->sesSem);
+session_already_dead:
+ mutex_unlock(&ses->session_mutex);
/* if session dead then we do not need to do ulogoff,
since server closed smb session, no sense reporting
int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count;
- cFYI(1, ("In POSIX delete"));
+ cFYI(1, "In POSIX delete");
PsxDelete:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("Posix delete returned %d", rc));
+ cFYI(1, "Posix delete returned %d", rc);
cifs_buf_release(pSMB);
cifs_stats_inc(&tcon->num_deletes);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_deletes);
if (rc)
- cFYI(1, ("Error in RMFile = %d", rc));
+ cFYI(1, "Error in RMFile = %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
int bytes_returned;
int name_len;
- cFYI(1, ("In CIFSSMBRmDir"));
+ cFYI(1, "In CIFSSMBRmDir");
RmDirRetry:
rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB,
(void **) &pSMBr);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_rmdirs);
if (rc)
- cFYI(1, ("Error in RMDir = %d", rc));
+ cFYI(1, "Error in RMDir = %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
int bytes_returned;
int name_len;
- cFYI(1, ("In CIFSSMBMkDir"));
+ cFYI(1, "In CIFSSMBMkDir");
MkDirRetry:
rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB,
(void **) &pSMBr);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_mkdirs);
if (rc)
- cFYI(1, ("Error in Mkdir = %d", rc));
+ cFYI(1, "Error in Mkdir = %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
OPEN_PSX_REQ *pdata;
OPEN_PSX_RSP *psx_rsp;
- cFYI(1, ("In POSIX Create"));
+ cFYI(1, "In POSIX Create");
PsxCreat:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Posix create returned %d", rc));
+ cFYI(1, "Posix create returned %d", rc);
goto psx_create_err;
}
- cFYI(1, ("copying inode info"));
+ cFYI(1, "copying inode info");
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) {
/* check to make sure response data is there */
if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) {
pRetData->Type = cpu_to_le32(-1); /* unknown */
- cFYI(DBG2, ("unknown type"));
+ cFYI(DBG2, "unknown type");
} else {
if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP)
+ sizeof(FILE_UNIX_BASIC_INFO)) {
- cERROR(1, ("Open response data too small"));
+ cERROR(1, "Open response data too small");
pRetData->Type = cpu_to_le32(-1);
goto psx_create_err;
}
psx_create_err:
cifs_buf_release(pSMB);
- cifs_stats_inc(&tcon->num_mkdirs);
+ if (posix_flags & SMB_O_DIRECTORY)
+ cifs_stats_inc(&tcon->num_posixmkdirs);
+ else
+ cifs_stats_inc(&tcon->num_posixopens);
if (rc == -EAGAIN)
goto PsxCreat;
ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC;
break;
default:
- cFYI(1, ("unknown disposition %d", disposition));
+ cFYI(1, "unknown disposition %d", disposition);
ofun = SMBOPEN_OAPPEND; /* regular open */
}
return ofun;
pSMB->ByteCount = cpu_to_le16(count);
/* long_op set to 1 to allow for oplock break timeouts */
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP);
+ (struct smb_hdr *)pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_opens);
if (rc) {
- cFYI(1, ("Error in Open = %d", rc));
+ cFYI(1, "Error in Open = %d", rc);
} else {
/* BB verify if wct == 15 */
cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile));
pfile_info->EndOfFile = pfile_info->AllocationSize;
pfile_info->NumberOfLinks = cpu_to_le32(1);
+ pfile_info->DeletePending = 0;
}
}
pSMB->ByteCount = cpu_to_le16(count);
/* long_op set to 1 to allow for oplock break timeouts */
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP);
+ (struct smb_hdr *)pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_opens);
if (rc) {
- cFYI(1, ("Error in Open = %d", rc));
+ cFYI(1, "Error in Open = %d", rc);
} else {
*pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */
*netfid = pSMBr->Fid; /* cifs fid stays in le */
if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction)
*pOplock |= CIFS_CREATE_ACTION;
if (pfile_info) {
- memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime,
- 36 /* CreationTime to Attributes */);
- /* the file_info buf is endian converted by caller */
- pfile_info->AllocationSize = pSMBr->AllocationSize;
- pfile_info->EndOfFile = pSMBr->EndOfFile;
- pfile_info->NumberOfLinks = cpu_to_le32(1);
+ memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime,
+ 36 /* CreationTime to Attributes */);
+ /* the file_info buf is endian converted by caller */
+ pfile_info->AllocationSize = pSMBr->AllocationSize;
+ pfile_info->EndOfFile = pSMBr->EndOfFile;
+ pfile_info->NumberOfLinks = cpu_to_le32(1);
+ pfile_info->DeletePending = 0;
}
}
int resp_buf_type = 0;
struct kvec iov[1];
- cFYI(1, ("Reading %d bytes on fid %d", count, netfid));
+ cFYI(1, "Reading %d bytes on fid %d", count, netfid);
if (tcon->ses->capabilities & CAP_LARGE_FILES)
wct = 12;
- else
+ else {
wct = 10; /* old style read */
+ if ((lseek >> 32) > 0) {
+ /* can not handle this big offset for old */
+ return -EIO;
+ }
+ }
*nbytes = 0;
rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB);
pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF);
if (wct == 12)
pSMB->OffsetHigh = cpu_to_le32(lseek >> 32);
- else if ((lseek >> 32) > 0) /* can not handle this big offset for old */
- return -EIO;
pSMB->Remaining = 0;
pSMB->MaxCount = cpu_to_le16(count & 0xFFFF);
iov[0].iov_base = (char *)pSMB;
iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */,
- &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR);
+ &resp_buf_type, CIFS_LOG_ERROR);
cifs_stats_inc(&tcon->num_reads);
pSMBr = (READ_RSP *)iov[0].iov_base;
if (rc) {
- cERROR(1, ("Send error in read = %d", rc));
+ cERROR(1, "Send error in read = %d", rc);
} else {
int data_length = le16_to_cpu(pSMBr->DataLengthHigh);
data_length = data_length << 16;
/*check that DataLength would not go beyond end of SMB */
if ((data_length > CIFSMaxBufSize)
|| (data_length > count)) {
- cFYI(1, ("bad length %d for count %d",
- data_length, count));
+ cFYI(1, "bad length %d for count %d",
+ data_length, count);
rc = -EIO;
*nbytes = 0;
} else {
pReadData = (char *) (&pSMBr->hdr.Protocol) +
le16_to_cpu(pSMBr->DataOffset);
/* if (rc = copy_to_user(buf, pReadData, data_length)) {
- cERROR(1,("Faulting on read rc = %d",rc));
+ cERROR(1, "Faulting on read rc = %d",rc);
rc = -EFAULT;
}*/ /* can not use copy_to_user when using page cache*/
if (*buf)
__u32 bytes_sent;
__u16 byte_count;
- /* cFYI(1,("write at %lld %d bytes",offset,count));*/
+ *nbytes = 0;
+
+ /* cFYI(1, "write at %lld %d bytes", offset, count);*/
if (tcon->ses == NULL)
return -ECONNABORTED;
if (tcon->ses->capabilities & CAP_LARGE_FILES)
wct = 14;
- else
+ else {
wct = 12;
+ if ((offset >> 32) > 0) {
+ /* can not handle big offset for old srv */
+ return -EIO;
+ }
+ }
rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB,
(void **) &pSMBr);
pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
if (wct == 14)
pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
- else if ((offset >> 32) > 0) /* can not handle big offset for old srv */
- return -EIO;
pSMB->Reserved = 0xFFFFFFFF;
pSMB->WriteMode = 0;
pSMB->DataOffset =
cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4);
if (buf)
- memcpy(pSMB->Data, buf, bytes_sent);
+ memcpy(pSMB->Data, buf, bytes_sent);
else if (ubuf) {
if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) {
cifs_buf_release(pSMB);
(struct smb_hdr *) pSMBr, &bytes_returned, long_op);
cifs_stats_inc(&tcon->num_writes);
if (rc) {
- cFYI(1, ("Send error in write = %d", rc));
- *nbytes = 0;
+ cFYI(1, "Send error in write = %d", rc);
} else {
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
+
+ /*
+ * Mask off high 16 bits when bytes written as returned by the
+ * server is greater than bytes requested by the client. Some
+ * OS/2 servers are known to set incorrect CountHigh values.
+ */
+ if (*nbytes > count)
+ *nbytes &= 0xFFFF;
}
cifs_buf_release(pSMB);
int smb_hdr_len;
int resp_buf_type = 0;
- cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count));
+ *nbytes = 0;
- if (tcon->ses->capabilities & CAP_LARGE_FILES)
+ cFYI(1, "write2 at %lld %d bytes", (long long)offset, count);
+
+ if (tcon->ses->capabilities & CAP_LARGE_FILES) {
wct = 14;
- else
+ } else {
wct = 12;
+ if ((offset >> 32) > 0) {
+ /* can not handle big offset for old srv */
+ return -EIO;
+ }
+ }
rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB);
if (rc)
return rc;
pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF);
if (wct == 14)
pSMB->OffsetHigh = cpu_to_le32(offset >> 32);
- else if ((offset >> 32) > 0) /* can not handle big offset for old srv */
- return -EIO;
pSMB->Reserved = 0xFFFFFFFF;
pSMB->WriteMode = 0;
pSMB->Remaining = 0;
long_op);
cifs_stats_inc(&tcon->num_writes);
if (rc) {
- cFYI(1, ("Send error Write2 = %d", rc));
- *nbytes = 0;
+ cFYI(1, "Send error Write2 = %d", rc);
} else if (resp_buf_type == 0) {
/* presumably this can not happen, but best to be safe */
rc = -EIO;
- *nbytes = 0;
} else {
WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base;
*nbytes = le16_to_cpu(pSMBr->CountHigh);
*nbytes = (*nbytes) << 16;
*nbytes += le16_to_cpu(pSMBr->Count);
+
+ /*
+ * Mask off high 16 bits when bytes written as returned by the
+ * server is greater than bytes requested by the client. OS/2
+ * servers are known to set incorrect CountHigh values.
+ */
+ if (*nbytes > count)
+ *nbytes &= 0xFFFF;
}
/* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
const __u16 smb_file_id, const __u64 len,
const __u64 offset, const __u32 numUnlock,
- const __u32 numLock, const __u8 lockType, const bool waitFlag)
+ const __u32 numLock, const __u8 lockType,
+ const bool waitFlag, const __u8 oplock_level)
{
int rc = 0;
LOCK_REQ *pSMB = NULL;
int timeout = 0;
__u16 count;
- cFYI(1, ("CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock));
+ cFYI(1, "CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock);
rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB);
if (rc)
pSMB->NumberOfLocks = cpu_to_le16(numLock);
pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock);
pSMB->LockType = lockType;
+ pSMB->OplockLevel = oplock_level;
pSMB->AndXCommand = 0xFF; /* none */
pSMB->Fid = smb_file_id; /* netfid stays le */
}
cifs_stats_inc(&tcon->num_locks);
if (rc)
- cFYI(1, ("Send error in Lock = %d", rc));
+ cFYI(1, "Send error in Lock = %d", rc);
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
__u16 params, param_offset, offset, byte_count, count;
struct kvec iov[1];
- cFYI(1, ("Posix Lock"));
+ cFYI(1, "Posix Lock");
if (pLockData == NULL)
return -EINVAL;
}
if (rc) {
- cFYI(1, ("Send error in Posix Lock = %d", rc));
+ cFYI(1, "Send error in Posix Lock = %d", rc);
} else if (get_flag) {
/* lock structure can be returned on get */
__u16 data_offset;
rc = -EIO; /* bad smb */
goto plk_err_exit;
}
- if (pLockData == NULL) {
- rc = -EINVAL;
- goto plk_err_exit;
- }
data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
data_count = le16_to_cpu(pSMBr->t2.DataCount);
if (data_count < sizeof(struct cifs_posix_lock)) {
}
parm_data = (struct cifs_posix_lock *)
((char *)&pSMBr->hdr.Protocol + data_offset);
- if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK))
+ if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK))
pLockData->fl_type = F_UNLCK;
+ else {
+ if (parm_data->lock_type ==
+ __constant_cpu_to_le16(CIFS_RDLCK))
+ pLockData->fl_type = F_RDLCK;
+ else if (parm_data->lock_type ==
+ __constant_cpu_to_le16(CIFS_WRLCK))
+ pLockData->fl_type = F_WRLCK;
+
+ pLockData->fl_start = parm_data->start;
+ pLockData->fl_end = parm_data->start +
+ parm_data->length - 1;
+ pLockData->fl_pid = parm_data->pid;
+ }
}
plk_err_exit:
{
int rc = 0;
CLOSE_REQ *pSMB = NULL;
- cFYI(1, ("In CIFSSMBClose"));
+ cFYI(1, "In CIFSSMBClose");
/* do not retry on dead session on close */
rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB);
if (rc) {
if (rc != -EINTR) {
/* EINTR is expected when user ctl-c to kill app */
- cERROR(1, ("Send error in Close = %d", rc));
+ cERROR(1, "Send error in Close = %d", rc);
}
}
}
int
+CIFSSMBFlush(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
+{
+ int rc = 0;
+ FLUSH_REQ *pSMB = NULL;
+ cFYI(1, "In CIFSSMBFlush");
+
+ rc = small_smb_init(SMB_COM_FLUSH, 1, tcon, (void **) &pSMB);
+ if (rc)
+ return rc;
+
+ pSMB->FileID = (__u16) smb_file_id;
+ pSMB->ByteCount = 0;
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
+ cifs_stats_inc(&tcon->num_flushes);
+ if (rc)
+ cERROR(1, "Send error in Flush = %d", rc);
+
+ return rc;
+}
+
+int
CIFSSMBRename(const int xid, struct cifsTconInfo *tcon,
const char *fromName, const char *toName,
const struct nls_table *nls_codepage, int remap)
int name_len, name_len2;
__u16 count;
- cFYI(1, ("In CIFSSMBRename"));
+ cFYI(1, "In CIFSSMBRename");
renameRetry:
rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB,
(void **) &pSMBr);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_renames);
if (rc)
- cFYI(1, ("Send error in rename = %d", rc));
+ cFYI(1, "Send error in rename = %d", rc);
cifs_buf_release(pSMB);
}
int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon,
- int netfid, char *target_name,
+ int netfid, const char *target_name,
const struct nls_table *nls_codepage, int remap)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
int len_of_str;
__u16 params, param_offset, offset, count, byte_count;
- cFYI(1, ("Rename to File by handle"));
+ cFYI(1, "Rename to File by handle");
rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB,
(void **) &pSMBr);
if (rc)
remap);
}
rename_info->target_name_len = cpu_to_le32(2 * len_of_str);
- count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str) + 2;
+ count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str);
byte_count += count;
pSMB->DataCount = cpu_to_le16(count);
pSMB->TotalDataCount = pSMB->DataCount;
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&pTcon->num_t2renames);
if (rc)
- cFYI(1, ("Send error in Rename (by file handle) = %d", rc));
+ cFYI(1, "Send error in Rename (by file handle) = %d", rc);
cifs_buf_release(pSMB);
int name_len, name_len2;
__u16 count;
- cFYI(1, ("In CIFSSMBCopy"));
+ cFYI(1, "In CIFSSMBCopy");
copyRetry:
rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in copy = %d with %d files copied",
- rc, le16_to_cpu(pSMBr->CopyCount)));
+ cFYI(1, "Send error in copy = %d with %d files copied",
+ rc, le16_to_cpu(pSMBr->CopyCount));
}
cifs_buf_release(pSMB);
int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count;
- cFYI(1, ("In Symlink Unix style"));
+ cFYI(1, "In Symlink Unix style");
createSymLinkRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_symlinks);
if (rc)
- cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc));
+ cFYI(1, "Send error in SetPathInfo create symlink = %d", rc);
cifs_buf_release(pSMB);
int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count;
- cFYI(1, ("In Create Hard link Unix style"));
+ cFYI(1, "In Create Hard link Unix style");
createHardLinkRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_hardlinks);
if (rc)
- cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc));
+ cFYI(1, "Send error in SetPathInfo (hard link) = %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
int name_len, name_len2;
__u16 count;
- cFYI(1, ("In CIFSCreateHardLink"));
+ cFYI(1, "In CIFSCreateHardLink");
winCreateHardLinkRetry:
rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB,
PATH_MAX, nls_codepage, remap);
name_len++; /* trailing null */
name_len *= 2;
- pSMB->OldFileName[name_len] = 0; /* pad */
- pSMB->OldFileName[name_len + 1] = 0x04;
+
+ /* protocol specifies ASCII buffer format (0x04) for unicode */
+ pSMB->OldFileName[name_len] = 0x04;
+ pSMB->OldFileName[name_len + 1] = 0x00; /* pad */
name_len2 =
cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2],
toName, PATH_MAX, nls_codepage, remap);
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_hardlinks);
if (rc)
- cFYI(1, ("Send error in hard link (NT rename) = %d", rc));
+ cFYI(1, "Send error in hard link (NT rename) = %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
int
CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName,
- char *symlinkinfo, const int buflen,
+ const unsigned char *searchName, char **symlinkinfo,
const struct nls_table *nls_codepage)
{
/* SMB_QUERY_FILE_UNIX_LINK */
int bytes_returned;
int name_len;
__u16 params, byte_count;
+ char *data_start;
- cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName));
+ cFYI(1, "In QPathSymLinkInfo (Unix) for path %s", searchName);
querySymLinkRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ;
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
- /* BB find exact max data count below from sess structure BB */
- pSMB->MaxDataCount = cpu_to_le16(4000);
+ pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc));
+ cFYI(1, "Send error in QuerySymLinkInfo = %d", rc);
} else {
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
- if (rc || (pSMBr->ByteCount < 2))
/* BB also check enough total bytes returned */
- rc = -EIO; /* bad smb */
+ if (rc || (pSMBr->ByteCount < 2))
+ rc = -EIO;
else {
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- __u16 count = le16_to_cpu(pSMBr->t2.DataCount);
+ bool is_unicode;
+ u16 count = le16_to_cpu(pSMBr->t2.DataCount);
+
+ data_start = ((char *) &pSMBr->hdr.Protocol) +
+ le16_to_cpu(pSMBr->t2.DataOffset);
+
+ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
+ is_unicode = true;
+ else
+ is_unicode = false;
- if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len = UniStrnlen((wchar_t *) ((char *)
- &pSMBr->hdr.Protocol + data_offset),
- min_t(const int, buflen, count) / 2);
/* BB FIXME investigate remapping reserved chars here */
- cifs_strfromUCS_le(symlinkinfo,
- (__le16 *) ((char *)&pSMBr->hdr.Protocol
- + data_offset),
- name_len, nls_codepage);
- } else {
- strncpy(symlinkinfo,
- (char *) &pSMBr->hdr.Protocol +
- data_offset,
- min_t(const int, buflen, count));
- }
- symlinkinfo[buflen] = 0;
- /* just in case so calling code does not go off the end of buffer */
+ *symlinkinfo = cifs_strndup_from_ucs(data_start, count,
+ is_unicode, nls_codepage);
+ if (!*symlinkinfo)
+ rc = -ENOMEM;
}
}
cifs_buf_release(pSMB);
}
#ifdef CONFIG_CIFS_EXPERIMENTAL
-/* Initialize NT TRANSACT SMB into small smb request buffer.
- This assumes that all NT TRANSACTS that we init here have
- total parm and data under about 400 bytes (to fit in small cifs
- buffer size), which is the case so far, it easily fits. NB:
- Setup words themselves and ByteCount
- MaxSetupCount (size of returned setup area) and
- MaxParameterCount (returned parms size) must be set by caller */
-static int
-smb_init_nttransact(const __u16 sub_command, const int setup_count,
- const int parm_len, struct cifsTconInfo *tcon,
- void **ret_buf)
-{
- int rc;
- __u32 temp_offset;
- struct smb_com_ntransact_req *pSMB;
-
- rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon,
- (void **)&pSMB);
- if (rc)
- return rc;
- *ret_buf = (void *)pSMB;
- pSMB->Reserved = 0;
- pSMB->TotalParameterCount = cpu_to_le32(parm_len);
- pSMB->TotalDataCount = 0;
- pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
- MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
- pSMB->ParameterCount = pSMB->TotalParameterCount;
- pSMB->DataCount = pSMB->TotalDataCount;
- temp_offset = offsetof(struct smb_com_ntransact_req, Parms) +
- (setup_count * 2) - 4 /* for rfc1001 length itself */;
- pSMB->ParameterOffset = cpu_to_le32(temp_offset);
- pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len);
- pSMB->SetupCount = setup_count; /* no need to le convert byte fields */
- pSMB->SubCommand = cpu_to_le16(sub_command);
- return 0;
-}
-
-static int
-validate_ntransact(char *buf, char **ppparm, char **ppdata,
- __u32 *pparmlen, __u32 *pdatalen)
-{
- char *end_of_smb;
- __u32 data_count, data_offset, parm_count, parm_offset;
- struct smb_com_ntransact_rsp *pSMBr;
-
- *pdatalen = 0;
- *pparmlen = 0;
-
- if (buf == NULL)
- return -EINVAL;
-
- pSMBr = (struct smb_com_ntransact_rsp *)buf;
-
- /* ByteCount was converted from little endian in SendReceive */
- end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
- (char *)&pSMBr->ByteCount;
-
- data_offset = le32_to_cpu(pSMBr->DataOffset);
- data_count = le32_to_cpu(pSMBr->DataCount);
- parm_offset = le32_to_cpu(pSMBr->ParameterOffset);
- parm_count = le32_to_cpu(pSMBr->ParameterCount);
-
- *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset;
- *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset;
-
- /* should we also check that parm and data areas do not overlap? */
- if (*ppparm > end_of_smb) {
- cFYI(1, ("parms start after end of smb"));
- return -EINVAL;
- } else if (parm_count + *ppparm > end_of_smb) {
- cFYI(1, ("parm end after end of smb"));
- return -EINVAL;
- } else if (*ppdata > end_of_smb) {
- cFYI(1, ("data starts after end of smb"));
- return -EINVAL;
- } else if (data_count + *ppdata > end_of_smb) {
- cFYI(1, ("data %p + count %d (%p) ends after end of smb %p start %p",
- *ppdata, data_count, (data_count + *ppdata),
- end_of_smb, pSMBr));
- return -EINVAL;
- } else if (parm_count + data_count > pSMBr->ByteCount) {
- cFYI(1, ("parm count and data count larger than SMB"));
- return -EINVAL;
- }
- *pdatalen = data_count;
- *pparmlen = parm_count;
- return 0;
-}
-#endif /* CIFS_EXPERIMENTAL */
-
int
CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName,
{
int rc = 0;
int bytes_returned;
- int name_len;
struct smb_com_transaction_ioctl_req *pSMB;
struct smb_com_transaction_ioctl_rsp *pSMBr;
- cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName));
+ cFYI(1, "In Windows reparse style QueryLink for path %s", searchName);
rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB,
(void **) &pSMBr);
if (rc)
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc));
+ cFYI(1, "Send error in QueryReparseLinkInfo = %d", rc);
} else { /* decode response */
__u32 data_offset = le32_to_cpu(pSMBr->DataOffset);
__u32 data_count = le32_to_cpu(pSMBr->DataCount);
- if ((pSMBr->ByteCount < 2) || (data_offset > 512))
+ if ((pSMBr->ByteCount < 2) || (data_offset > 512)) {
/* BB also check enough total bytes returned */
rc = -EIO; /* bad smb */
- else {
- if (data_count && (data_count < 2048)) {
- char *end_of_smb = 2 /* sizeof byte count */ +
- pSMBr->ByteCount +
- (char *)&pSMBr->ByteCount;
+ goto qreparse_out;
+ }
+ if (data_count && (data_count < 2048)) {
+ char *end_of_smb = 2 /* sizeof byte count */ +
+ pSMBr->ByteCount + (char *)&pSMBr->ByteCount;
- struct reparse_data *reparse_buf =
+ struct reparse_data *reparse_buf =
(struct reparse_data *)
((char *)&pSMBr->hdr.Protocol
+ data_offset);
- if ((char *)reparse_buf >= end_of_smb) {
- rc = -EIO;
- goto qreparse_out;
- }
- if ((reparse_buf->LinkNamesBuf +
- reparse_buf->TargetNameOffset +
- reparse_buf->TargetNameLen) >
- end_of_smb) {
- cFYI(1, ("reparse buf beyond SMB"));
- rc = -EIO;
- goto qreparse_out;
- }
+ if ((char *)reparse_buf >= end_of_smb) {
+ rc = -EIO;
+ goto qreparse_out;
+ }
+ if ((reparse_buf->LinkNamesBuf +
+ reparse_buf->TargetNameOffset +
+ reparse_buf->TargetNameLen) > end_of_smb) {
+ cFYI(1, "reparse buf beyond SMB");
+ rc = -EIO;
+ goto qreparse_out;
+ }
- if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len = UniStrnlen((wchar_t *)
+ if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
+ cifs_from_ucs2(symlinkinfo, (__le16 *)
(reparse_buf->LinkNamesBuf +
reparse_buf->TargetNameOffset),
- min(buflen/2,
- reparse_buf->TargetNameLen / 2));
- cifs_strfromUCS_le(symlinkinfo,
- (__le16 *) (reparse_buf->LinkNamesBuf +
- reparse_buf->TargetNameOffset),
- name_len, nls_codepage);
- } else { /* ASCII names */
- strncpy(symlinkinfo,
- reparse_buf->LinkNamesBuf +
- reparse_buf->TargetNameOffset,
- min_t(const int, buflen,
- reparse_buf->TargetNameLen));
- }
- } else {
- rc = -EIO;
- cFYI(1, ("Invalid return data count on "
- "get reparse info ioctl"));
+ buflen,
+ reparse_buf->TargetNameLen,
+ nls_codepage, 0);
+ } else { /* ASCII names */
+ strncpy(symlinkinfo,
+ reparse_buf->LinkNamesBuf +
+ reparse_buf->TargetNameOffset,
+ min_t(const int, buflen,
+ reparse_buf->TargetNameLen));
}
- symlinkinfo[buflen] = 0; /* just in case so the caller
- does not go off the end of the buffer */
- cFYI(1, ("readlink result - %s", symlinkinfo));
+ } else {
+ rc = -EIO;
+ cFYI(1, "Invalid return data count on "
+ "get reparse info ioctl");
}
+ symlinkinfo[buflen] = 0; /* just in case so the caller
+ does not go off the end of the buffer */
+ cFYI(1, "readlink result - %s", symlinkinfo);
}
+
qreparse_out:
cifs_buf_release(pSMB);
return rc;
}
+#endif /* CIFS_EXPERIMENTAL */
#ifdef CONFIG_CIFS_POSIX
ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm);
ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag);
ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid));
- /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */
+ /* cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id); */
return;
}
size += sizeof(struct cifs_posix_ace) * count;
/* check if we would go beyond end of SMB */
if (size_of_data_area < size) {
- cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d",
- size_of_data_area, size));
+ cFYI(1, "bad CIFS POSIX ACL size %d vs. %d",
+ size_of_data_area, size);
return -EINVAL;
}
} else if (acl_type & ACL_TYPE_DEFAULT) {
cifs_ace->cifs_uid = cpu_to_le64(-1);
} else
cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id));
- /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/
+ /*cFYI(1, "perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id);*/
return rc;
}
return 0;
count = posix_acl_xattr_count((size_t)buflen);
- cFYI(1, ("setting acl with %d entries from buf of length %d and "
+ cFYI(1, "setting acl with %d entries from buf of length %d and "
"version of %d",
- count, buflen, le32_to_cpu(local_acl->a_version)));
+ count, buflen, le32_to_cpu(local_acl->a_version));
if (le32_to_cpu(local_acl->a_version) != 2) {
- cFYI(1, ("unknown POSIX ACL version %d",
- le32_to_cpu(local_acl->a_version)));
+ cFYI(1, "unknown POSIX ACL version %d",
+ le32_to_cpu(local_acl->a_version));
return 0;
}
cifs_acl->version = cpu_to_le16(1);
else if (acl_type == ACL_TYPE_DEFAULT)
cifs_acl->default_entry_count = cpu_to_le16(count);
else {
- cFYI(1, ("unknown ACL type %d", acl_type));
+ cFYI(1, "unknown ACL type %d", acl_type);
return 0;
}
for (i = 0; i < count; i++) {
int name_len;
__u16 params, byte_count;
- cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName));
+ cFYI(1, "In GetPosixACL (Unix) for path %s", searchName);
queryAclRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
cifs_stats_inc(&tcon->num_acl_get);
if (rc) {
- cFYI(1, ("Send error in Query POSIX ACL = %d", rc));
+ cFYI(1, "Send error in Query POSIX ACL = %d", rc);
} else {
/* decode response */
int bytes_returned = 0;
__u16 params, byte_count, data_count, param_offset, offset;
- cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName));
+ cFYI(1, "In SetPosixACL (Unix) for path %s", fileName);
setAclRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("Set POSIX ACL returned %d", rc));
+ cFYI(1, "Set POSIX ACL returned %d", rc);
setACLerrorExit:
cifs_buf_release(pSMB);
int bytes_returned;
__u16 params, byte_count;
- cFYI(1, ("In GetExtAttr"));
+ cFYI(1, "In GetExtAttr");
if (tcon == NULL)
return -ENODEV;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("error %d in GetExtAttr", rc));
+ cFYI(1, "error %d in GetExtAttr", rc);
} else {
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
struct file_chattr_info *pfinfo;
/* BB Do we need a cast or hash here ? */
if (count != 16) {
- cFYI(1, ("Illegal size ret in GetExtAttr"));
+ cFYI(1, "Illegal size ret in GetExtAttr");
rc = -EIO;
goto GetExtAttrOut;
}
#endif /* CONFIG_POSIX */
-#ifdef CONFIG_CIFS_EXPERIMENTAL
+#ifdef CONFIG_CIFS_ACL
+/*
+ * Initialize NT TRANSACT SMB into small smb request buffer. This assumes that
+ * all NT TRANSACTS that we init here have total parm and data under about 400
+ * bytes (to fit in small cifs buffer size), which is the case so far, it
+ * easily fits. NB: Setup words themselves and ByteCount MaxSetupCount (size of
+ * returned setup area) and MaxParameterCount (returned parms size) must be set
+ * by caller
+ */
+static int
+smb_init_nttransact(const __u16 sub_command, const int setup_count,
+ const int parm_len, struct cifsTconInfo *tcon,
+ void **ret_buf)
+{
+ int rc;
+ __u32 temp_offset;
+ struct smb_com_ntransact_req *pSMB;
+
+ rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon,
+ (void **)&pSMB);
+ if (rc)
+ return rc;
+ *ret_buf = (void *)pSMB;
+ pSMB->Reserved = 0;
+ pSMB->TotalParameterCount = cpu_to_le32(parm_len);
+ pSMB->TotalDataCount = 0;
+ pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf -
+ MAX_CIFS_HDR_SIZE) & 0xFFFFFF00);
+ pSMB->ParameterCount = pSMB->TotalParameterCount;
+ pSMB->DataCount = pSMB->TotalDataCount;
+ temp_offset = offsetof(struct smb_com_ntransact_req, Parms) +
+ (setup_count * 2) - 4 /* for rfc1001 length itself */;
+ pSMB->ParameterOffset = cpu_to_le32(temp_offset);
+ pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len);
+ pSMB->SetupCount = setup_count; /* no need to le convert byte fields */
+ pSMB->SubCommand = cpu_to_le16(sub_command);
+ return 0;
+}
+
+static int
+validate_ntransact(char *buf, char **ppparm, char **ppdata,
+ __u32 *pparmlen, __u32 *pdatalen)
+{
+ char *end_of_smb;
+ __u32 data_count, data_offset, parm_count, parm_offset;
+ struct smb_com_ntransact_rsp *pSMBr;
+
+ *pdatalen = 0;
+ *pparmlen = 0;
+
+ if (buf == NULL)
+ return -EINVAL;
+
+ pSMBr = (struct smb_com_ntransact_rsp *)buf;
+
+ /* ByteCount was converted from little endian in SendReceive */
+ end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount +
+ (char *)&pSMBr->ByteCount;
+
+ data_offset = le32_to_cpu(pSMBr->DataOffset);
+ data_count = le32_to_cpu(pSMBr->DataCount);
+ parm_offset = le32_to_cpu(pSMBr->ParameterOffset);
+ parm_count = le32_to_cpu(pSMBr->ParameterCount);
+
+ *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset;
+ *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset;
+
+ /* should we also check that parm and data areas do not overlap? */
+ if (*ppparm > end_of_smb) {
+ cFYI(1, "parms start after end of smb");
+ return -EINVAL;
+ } else if (parm_count + *ppparm > end_of_smb) {
+ cFYI(1, "parm end after end of smb");
+ return -EINVAL;
+ } else if (*ppdata > end_of_smb) {
+ cFYI(1, "data starts after end of smb");
+ return -EINVAL;
+ } else if (data_count + *ppdata > end_of_smb) {
+ cFYI(1, "data %p + count %d (%p) past smb end %p start %p",
+ *ppdata, data_count, (data_count + *ppdata),
+ end_of_smb, pSMBr);
+ return -EINVAL;
+ } else if (parm_count + data_count > pSMBr->ByteCount) {
+ cFYI(1, "parm count and data count larger than SMB");
+ return -EINVAL;
+ }
+ *pdatalen = data_count;
+ *pparmlen = parm_count;
+ return 0;
+}
+
/* Get Security Descriptor (by handle) from remote server for a file or dir */
int
CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
QUERY_SEC_DESC_REQ *pSMB;
struct kvec iov[1];
- cFYI(1, ("GetCifsACL"));
+ cFYI(1, "GetCifsACL");
*pbuflen = 0;
*acl_inf = NULL;
iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type,
- CIFS_STD_OP);
+ 0);
cifs_stats_inc(&tcon->num_acl_get);
if (rc) {
- cFYI(1, ("Send error in QuerySecDesc = %d", rc));
+ cFYI(1, "Send error in QuerySecDesc = %d", rc);
} else { /* decode response */
__le32 *parm;
__u32 parm_len;
goto qsec_out;
pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base;
- cFYI(1, ("smb %p parm %p data %p", pSMBr, parm, *acl_inf));
+ cFYI(1, "smb %p parm %p data %p", pSMBr, parm, *acl_inf);
if (le32_to_cpu(pSMBr->ParameterCount) != 4) {
rc = -EIO; /* bad smb */
acl_len = le32_to_cpu(*parm);
if (acl_len != *pbuflen) {
- cERROR(1, ("acl length %d does not match %d",
- acl_len, *pbuflen));
+ cERROR(1, "acl length %d does not match %d",
+ acl_len, *pbuflen);
if (*pbuflen > acl_len)
*pbuflen = acl_len;
}
header followed by the smallest SID */
if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) ||
(*pbuflen >= 64 * 1024)) {
- cERROR(1, ("bad acl length %d", *pbuflen));
+ cERROR(1, "bad acl length %d", *pbuflen);
rc = -EINVAL;
*pbuflen = 0;
} else {
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
- cFYI(1, ("SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc));
+ cFYI(1, "SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc);
if (rc)
- cFYI(1, ("Set CIFS ACL returned %d", rc));
+ cFYI(1, "Set CIFS ACL returned %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
return (rc);
}
-#endif /* CONFIG_CIFS_EXPERIMENTAL */
+#endif /* CONFIG_CIFS_ACL */
/* Legacy Query Path Information call for lookup to old servers such
as Win9x/WinME */
int bytes_returned;
int name_len;
- cFYI(1, ("In SMBQPath path %s", searchName));
+ cFYI(1, "In SMBQPath path %s", searchName);
QInfRetry:
rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QueryInfo = %d", rc));
+ cFYI(1, "Send error in QueryInfo = %d", rc);
} else if (pFinfo) {
struct timespec ts;
__u32 time = le32_to_cpu(pSMBr->last_write_time);
return rc;
}
+int
+CIFSSMBQFileInfo(const int xid, struct cifsTconInfo *tcon,
+ u16 netfid, FILE_ALL_INFO *pFindData)
+{
+ struct smb_t2_qfi_req *pSMB = NULL;
+ struct smb_t2_qfi_rsp *pSMBr = NULL;
+ int rc = 0;
+ int bytes_returned;
+ __u16 params, byte_count;
+
+QFileInfoRetry:
+ rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
+ (void **) &pSMBr);
+ if (rc)
+ return rc;
+
+ params = 2 /* level */ + 2 /* fid */;
+ pSMB->t2.TotalDataCount = 0;
+ pSMB->t2.MaxParameterCount = cpu_to_le16(4);
+ /* BB find exact max data count below from sess structure BB */
+ pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize);
+ pSMB->t2.MaxSetupCount = 0;
+ pSMB->t2.Reserved = 0;
+ pSMB->t2.Flags = 0;
+ pSMB->t2.Timeout = 0;
+ pSMB->t2.Reserved2 = 0;
+ pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req,
+ Fid) - 4);
+ pSMB->t2.DataCount = 0;
+ pSMB->t2.DataOffset = 0;
+ pSMB->t2.SetupCount = 1;
+ pSMB->t2.Reserved3 = 0;
+ pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION);
+ byte_count = params + 1 /* pad */ ;
+ pSMB->t2.TotalParameterCount = cpu_to_le16(params);
+ pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount;
+ pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO);
+ pSMB->Pad = 0;
+ pSMB->Fid = netfid;
+ pSMB->hdr.smb_buf_length += byte_count;
+
+ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+ (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ if (rc) {
+ cFYI(1, "Send error in QPathInfo = %d", rc);
+ } else { /* decode response */
+ rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ if (rc) /* BB add auto retry on EOPNOTSUPP? */
+ rc = -EIO;
+ else if (pSMBr->ByteCount < 40)
+ rc = -EIO; /* bad smb */
+ else if (pFindData) {
+ __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+ memcpy((char *) pFindData,
+ (char *) &pSMBr->hdr.Protocol +
+ data_offset, sizeof(FILE_ALL_INFO));
+ } else
+ rc = -ENOMEM;
+ }
+ cifs_buf_release(pSMB);
+ if (rc == -EAGAIN)
+ goto QFileInfoRetry;
+ return rc;
+}
int
CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon,
int name_len;
__u16 params, byte_count;
-/* cFYI(1, ("In QPathInfo path %s", searchName)); */
+/* cFYI(1, "In QPathInfo path %s", searchName); */
QPathInfoRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QPathInfo = %d", rc));
+ cFYI(1, "Send error in QPathInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
}
int
-CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName,
- FILE_UNIX_BASIC_INFO *pFindData,
- const struct nls_table *nls_codepage, int remap)
+CIFSSMBUnixQFileInfo(const int xid, struct cifsTconInfo *tcon,
+ u16 netfid, FILE_UNIX_BASIC_INFO *pFindData)
{
-/* SMB_QUERY_FILE_UNIX_BASIC */
- TRANSACTION2_QPI_REQ *pSMB = NULL;
- TRANSACTION2_QPI_RSP *pSMBr = NULL;
+ struct smb_t2_qfi_req *pSMB = NULL;
+ struct smb_t2_qfi_rsp *pSMBr = NULL;
int rc = 0;
- int bytes_returned = 0;
- int name_len;
+ int bytes_returned;
__u16 params, byte_count;
- cFYI(1, ("In QPathInfo (Unix) the path %s", searchName));
-UnixQPathInfoRetry:
+UnixQFileInfoRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
if (rc)
return rc;
- if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
- cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
- PATH_MAX, nls_codepage, remap);
- name_len++; /* trailing null */
- name_len *= 2;
- } else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(searchName, PATH_MAX);
- name_len++; /* trailing null */
- strncpy(pSMB->FileName, searchName, name_len);
- }
-
- params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
- pSMB->TotalDataCount = 0;
- pSMB->MaxParameterCount = cpu_to_le16(2);
- /* BB find exact max SMB PDU from sess structure BB */
+ params = 2 /* level */ + 2 /* fid */;
+ pSMB->t2.TotalDataCount = 0;
+ pSMB->t2.MaxParameterCount = cpu_to_le16(4);
+ /* BB find exact max data count below from sess structure BB */
+ pSMB->t2.MaxDataCount = cpu_to_le16(CIFSMaxBufSize);
+ pSMB->t2.MaxSetupCount = 0;
+ pSMB->t2.Reserved = 0;
+ pSMB->t2.Flags = 0;
+ pSMB->t2.Timeout = 0;
+ pSMB->t2.Reserved2 = 0;
+ pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req,
+ Fid) - 4);
+ pSMB->t2.DataCount = 0;
+ pSMB->t2.DataOffset = 0;
+ pSMB->t2.SetupCount = 1;
+ pSMB->t2.Reserved3 = 0;
+ pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION);
+ byte_count = params + 1 /* pad */ ;
+ pSMB->t2.TotalParameterCount = cpu_to_le16(params);
+ pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount;
+ pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC);
+ pSMB->Pad = 0;
+ pSMB->Fid = netfid;
+ pSMB->hdr.smb_buf_length += byte_count;
+
+ rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+ (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ if (rc) {
+ cFYI(1, "Send error in QPathInfo = %d", rc);
+ } else { /* decode response */
+ rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+
+ if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) {
+ cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n"
+ "Unix Extensions can be disabled on mount "
+ "by specifying the nosfu mount option.");
+ rc = -EIO; /* bad smb */
+ } else {
+ __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+ memcpy((char *) pFindData,
+ (char *) &pSMBr->hdr.Protocol +
+ data_offset,
+ sizeof(FILE_UNIX_BASIC_INFO));
+ }
+ }
+
+ cifs_buf_release(pSMB);
+ if (rc == -EAGAIN)
+ goto UnixQFileInfoRetry;
+
+ return rc;
+}
+
+int
+CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon,
+ const unsigned char *searchName,
+ FILE_UNIX_BASIC_INFO *pFindData,
+ const struct nls_table *nls_codepage, int remap)
+{
+/* SMB_QUERY_FILE_UNIX_BASIC */
+ TRANSACTION2_QPI_REQ *pSMB = NULL;
+ TRANSACTION2_QPI_RSP *pSMBr = NULL;
+ int rc = 0;
+ int bytes_returned = 0;
+ int name_len;
+ __u16 params, byte_count;
+
+ cFYI(1, "In QPathInfo (Unix) the path %s", searchName);
+UnixQPathInfoRetry:
+ rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
+ (void **) &pSMBr);
+ if (rc)
+ return rc;
+
+ if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
+ name_len =
+ cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
+ PATH_MAX, nls_codepage, remap);
+ name_len++; /* trailing null */
+ name_len *= 2;
+ } else { /* BB improve the check for buffer overruns BB */
+ name_len = strnlen(searchName, PATH_MAX);
+ name_len++; /* trailing null */
+ strncpy(pSMB->FileName, searchName, name_len);
+ }
+
+ params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
+ pSMB->TotalDataCount = 0;
+ pSMB->MaxParameterCount = cpu_to_le16(2);
+ /* BB find exact max SMB PDU from sess structure BB */
pSMB->MaxDataCount = cpu_to_le16(4000);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QPathInfo = %d", rc));
+ cFYI(1, "Send error in QPathInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) {
- cERROR(1, ("Malformed FILE_UNIX_BASIC_INFO response.\n"
+ cERROR(1, "Malformed FILE_UNIX_BASIC_INFO response.\n"
"Unix Extensions can be disabled on mount "
- "by specifying the nosfu mount option."));
+ "by specifying the nosfu mount option.");
rc = -EIO; /* bad smb */
} else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
int name_len;
__u16 params, byte_count;
- cFYI(1, ("In FindFirst for %s", searchName));
+ cFYI(1, "In FindFirst for %s", searchName);
findFirstRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
if (rc) {/* BB add logic to retry regular search if Unix search
rejected unexpectedly by server */
/* BB Add code to handle unsupported level rc */
- cFYI(1, ("Error in FindFirst = %d", rc));
+ cFYI(1, "Error in FindFirst = %d", rc);
cifs_buf_release(pSMB);
/* BB remember to free buffer if error BB */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc == 0) {
+ unsigned int lnoff;
+
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
psrch_inf->unicode = true;
else
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry = 2 /* skip . and .. */ +
psrch_inf->entries_in_buffer;
+ lnoff = le16_to_cpu(parms->LastNameOffset);
+ if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE <
+ lnoff) {
+ cERROR(1, "ignoring corrupt resume name");
+ psrch_inf->last_entry = NULL;
+ return rc;
+ }
+
+ psrch_inf->last_entry = psrch_inf->srch_entries_start +
+ lnoff;
+
*pnetfid = parms->SearchHandle;
} else {
cifs_buf_release(pSMB);
T2_FNEXT_RSP_PARMS *parms;
char *response_data;
int rc = 0;
- int bytes_returned, name_len;
+ int bytes_returned;
+ unsigned int name_len;
__u16 params, byte_count;
- cFYI(1, ("In FindNext"));
+ cFYI(1, "In FindNext");
if (psrch_inf->endOfSearch)
return -ENOENT;
cifs_buf_release(pSMB);
rc = 0; /* search probably was closed at end of search*/
} else
- cFYI(1, ("FindNext returned = %d", rc));
+ cFYI(1, "FindNext returned = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc == 0) {
+ unsigned int lnoff;
+
/* BB fixme add lock for file (srch_info) struct here */
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
psrch_inf->unicode = true;
le16_to_cpu(parms->SearchCount);
psrch_inf->index_of_last_entry +=
psrch_inf->entries_in_buffer;
-/* cFYI(1,("fnxt2 entries in buf %d index_of_last %d",
- psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */
+ lnoff = le16_to_cpu(parms->LastNameOffset);
+ if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE <
+ lnoff) {
+ cERROR(1, "ignoring corrupt resume name");
+ psrch_inf->last_entry = NULL;
+ return rc;
+ } else
+ psrch_inf->last_entry =
+ psrch_inf->srch_entries_start + lnoff;
+
+/* cFYI(1, "fnxt2 entries in buf %d index_of_last %d",
+ psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry); */
/* BB fixme add unlock here */
}
int rc = 0;
FINDCLOSE_REQ *pSMB = NULL;
- cFYI(1, ("In CIFSSMBFindClose"));
+ cFYI(1, "In CIFSSMBFindClose");
rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB);
/* no sense returning error if session restarted
pSMB->ByteCount = 0;
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
if (rc)
- cERROR(1, ("Send error in FindClose = %d", rc));
+ cERROR(1, "Send error in FindClose = %d", rc);
cifs_stats_inc(&tcon->num_fclose);
int name_len, bytes_returned;
__u16 params, byte_count;
- cFYI(1, ("In GetSrvInodeNum for %s", searchName));
+ cFYI(1, "In GetSrvInodeNum for %s", searchName);
if (tcon == NULL)
return -ENODEV;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("error %d in QueryInternalInfo", rc));
+ cFYI(1, "error %d in QueryInternalInfo", rc);
} else {
/* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
struct file_internal_info *pfinfo;
/* BB Do we need a cast or hash here ? */
if (count < 8) {
- cFYI(1, ("Illegal size ret in QryIntrnlInf"));
+ cFYI(1, "Illegal size ret in QryIntrnlInf");
rc = -EIO;
goto GetInodeNumOut;
}
pfinfo = (struct file_internal_info *)
(data_offset + (char *) &pSMBr->hdr.Protocol);
- *inode_number = pfinfo->UniqueId;
+ *inode_number = le64_to_cpu(pfinfo->UniqueId);
}
}
GetInodeNumOut:
parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
unsigned int *num_of_nodes,
struct dfs_info3_param **target_nodes,
- const struct nls_table *nls_codepage)
+ const struct nls_table *nls_codepage, int remap,
+ const char *searchName)
{
int i, rc = 0;
char *data_end;
*num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals);
if (*num_of_nodes < 1) {
- cERROR(1, ("num_referrals: must be at least > 0,"
- "but we get num_referrals = %d\n", *num_of_nodes));
+ cERROR(1, "num_referrals: must be at least > 0,"
+ "but we get num_referrals = %d\n", *num_of_nodes);
rc = -EINVAL;
goto parse_DFS_referrals_exit;
}
ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals);
if (ref->VersionNumber != cpu_to_le16(3)) {
- cERROR(1, ("Referrals of V%d version are not supported,"
- "should be V3", le16_to_cpu(ref->VersionNumber)));
+ cERROR(1, "Referrals of V%d version are not supported,"
+ "should be V3", le16_to_cpu(ref->VersionNumber));
rc = -EINVAL;
goto parse_DFS_referrals_exit;
}
data_end = (char *)(&(pSMBr->PathConsumed)) +
le16_to_cpu(pSMBr->t2.DataCount);
- cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n",
+ cFYI(1, "num_referrals: %d dfs flags: 0x%x ...\n",
*num_of_nodes,
- le16_to_cpu(pSMBr->DFSFlags)));
+ le32_to_cpu(pSMBr->DFSFlags));
*target_nodes = kzalloc(sizeof(struct dfs_info3_param) *
*num_of_nodes, GFP_KERNEL);
if (*target_nodes == NULL) {
- cERROR(1, ("Failed to allocate buffer for target_nodes\n"));
+ cERROR(1, "Failed to allocate buffer for target_nodes\n");
rc = -ENOMEM;
goto parse_DFS_referrals_exit;
}
- /* collect neccessary data from referrals */
+ /* collect necessary data from referrals */
for (i = 0; i < *num_of_nodes; i++) {
char *temp;
int max_len;
struct dfs_info3_param *node = (*target_nodes)+i;
- node->flags = le16_to_cpu(pSMBr->DFSFlags);
- node->path_consumed = le16_to_cpu(pSMBr->PathConsumed);
+ node->flags = le32_to_cpu(pSMBr->DFSFlags);
+ if (is_unicode) {
+ __le16 *tmp = kmalloc(strlen(searchName)*2 + 2,
+ GFP_KERNEL);
+ if (tmp == NULL) {
+ rc = -ENOMEM;
+ goto parse_DFS_referrals_exit;
+ }
+ cifsConvertToUCS((__le16 *) tmp, searchName,
+ PATH_MAX, nls_codepage, remap);
+ node->path_consumed = cifs_ucs2_bytes(tmp,
+ le16_to_cpu(pSMBr->PathConsumed),
+ nls_codepage);
+ kfree(tmp);
+ } else
+ node->path_consumed = le16_to_cpu(pSMBr->PathConsumed);
+
node->server_type = le16_to_cpu(ref->ServerType);
node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags);
/* copy DfsPath */
temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset);
max_len = data_end - temp;
- rc = cifs_strncpy_to_host(&(node->path_name), temp,
- max_len, is_unicode, nls_codepage);
- if (rc)
+ node->path_name = cifs_strndup_from_ucs(temp, max_len,
+ is_unicode, nls_codepage);
+ if (!node->path_name) {
+ rc = -ENOMEM;
goto parse_DFS_referrals_exit;
+ }
/* copy link target UNC */
temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset);
max_len = data_end - temp;
- rc = cifs_strncpy_to_host(&(node->node_name), temp,
- max_len, is_unicode, nls_codepage);
- if (rc)
- goto parse_DFS_referrals_exit;
-
- ref += le16_to_cpu(ref->Size);
+ node->node_name = cifs_strndup_from_ucs(temp, max_len,
+ is_unicode, nls_codepage);
+ if (!node->node_name)
+ rc = -ENOMEM;
}
parse_DFS_referrals_exit:
*num_of_nodes = 0;
*target_nodes = NULL;
- cFYI(1, ("In GetDFSRefer the path %s", searchName));
+ cFYI(1, "In GetDFSRefer the path %s", searchName);
if (ses == NULL)
return -ENODEV;
getDFSRetry:
rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in GetDFSRefer = %d", rc));
+ cFYI(1, "Send error in GetDFSRefer = %d", rc);
goto GetDFSRefExit;
}
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
goto GetDFSRefExit;
}
- cFYI(1, ("Decoding GetDFSRefer response BCC: %d Offset %d",
+ cFYI(1, "Decoding GetDFSRefer response BCC: %d Offset %d",
pSMBr->ByteCount,
- le16_to_cpu(pSMBr->t2.DataOffset)));
+ le16_to_cpu(pSMBr->t2.DataOffset));
/* parse returned result into more usable form */
rc = parse_DFS_referrals(pSMBr, num_of_nodes,
- target_nodes, nls_codepage);
+ target_nodes, nls_codepage, remap,
+ searchName);
GetDFSRefExit:
cifs_buf_release(pSMB);
int bytes_returned = 0;
__u16 params, byte_count;
- cFYI(1, ("OldQFSInfo"));
+ cFYI(1, "OldQFSInfo");
oldQFSInfoRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QFSInfo = %d", rc));
+ cFYI(1, "Send error in QFSInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
rc = -EIO; /* bad smb */
else {
__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- cFYI(1, ("qfsinf resp BCC: %d Offset %d",
- pSMBr->ByteCount, data_offset));
+ cFYI(1, "qfsinf resp BCC: %d Offset %d",
+ pSMBr->ByteCount, data_offset);
response_data = (FILE_SYSTEM_ALLOC_INFO *)
(((char *) &pSMBr->hdr.Protocol) + data_offset);
le32_to_cpu(response_data->TotalAllocationUnits);
FSData->f_bfree = FSData->f_bavail =
le32_to_cpu(response_data->FreeAllocationUnits);
- cFYI(1,
- ("Blocks: %lld Free: %lld Block size %ld",
- (unsigned long long)FSData->f_blocks,
- (unsigned long long)FSData->f_bfree,
- FSData->f_bsize));
+ cFYI(1, "Blocks: %lld Free: %lld Block size %ld",
+ (unsigned long long)FSData->f_blocks,
+ (unsigned long long)FSData->f_bfree,
+ FSData->f_bsize);
}
}
cifs_buf_release(pSMB);
int bytes_returned = 0;
__u16 params, byte_count;
- cFYI(1, ("In QFSInfo"));
+ cFYI(1, "In QFSInfo");
QFSInfoRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QFSInfo = %d", rc));
+ cFYI(1, "Send error in QFSInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
le64_to_cpu(response_data->TotalAllocationUnits);
FSData->f_bfree = FSData->f_bavail =
le64_to_cpu(response_data->FreeAllocationUnits);
- cFYI(1,
- ("Blocks: %lld Free: %lld Block size %ld",
- (unsigned long long)FSData->f_blocks,
- (unsigned long long)FSData->f_bfree,
- FSData->f_bsize));
+ cFYI(1, "Blocks: %lld Free: %lld Block size %ld",
+ (unsigned long long)FSData->f_blocks,
+ (unsigned long long)FSData->f_bfree,
+ FSData->f_bsize);
}
}
cifs_buf_release(pSMB);
int bytes_returned = 0;
__u16 params, byte_count;
- cFYI(1, ("In QFSAttributeInfo"));
+ cFYI(1, "In QFSAttributeInfo");
QFSAttributeRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cERROR(1, ("Send error in QFSAttributeInfo = %d", rc));
+ cERROR(1, "Send error in QFSAttributeInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
int bytes_returned = 0;
__u16 params, byte_count;
- cFYI(1, ("In QFSDeviceInfo"));
+ cFYI(1, "In QFSDeviceInfo");
QFSDeviceRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QFSDeviceInfo = %d", rc));
+ cFYI(1, "Send error in QFSDeviceInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
int bytes_returned = 0;
__u16 params, byte_count;
- cFYI(1, ("In QFSUnixInfo"));
+ cFYI(1, "In QFSUnixInfo");
QFSUnixRetry:
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
+ rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon,
+ (void **) &pSMB, (void **) &pSMBr);
if (rc)
return rc;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cERROR(1, ("Send error in QFSUnixInfo = %d", rc));
+ cERROR(1, "Send error in QFSUnixInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count;
- cFYI(1, ("In SETFSUnixInfo"));
+ cFYI(1, "In SETFSUnixInfo");
SETFSUnixRetry:
/* BB switch to small buf init to save memory */
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
+ rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon,
+ (void **) &pSMB, (void **) &pSMBr);
if (rc)
return rc;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cERROR(1, ("Send error in SETFSUnixInfo = %d", rc));
+ cERROR(1, "Send error in SETFSUnixInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
if (rc)
int bytes_returned = 0;
__u16 params, byte_count;
- cFYI(1, ("In QFSPosixInfo"));
+ cFYI(1, "In QFSPosixInfo");
QFSPosixRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QFSUnixInfo = %d", rc));
+ cFYI(1, "Send error in QFSUnixInfo = %d", rc);
} else { /* decode response */
rc = validate_t2((struct smb_t2_rsp *)pSMBr);
int bytes_returned = 0;
__u16 params, byte_count, data_count, param_offset, offset;
- cFYI(1, ("In SetEOF"));
+ cFYI(1, "In SetEOF");
SetEOFRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("SetPathInfo (file size) returned %d", rc));
+ cFYI(1, "SetPathInfo (file size) returned %d", rc);
cifs_buf_release(pSMB);
__u16 fid, __u32 pid_of_opener, bool SetAllocation)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
- char *data_offset;
struct file_end_of_file_info *parm_data;
int rc = 0;
__u16 params, param_offset, offset, byte_count, count;
- cFYI(1, ("SetFileSize (via SetFileInfo) %lld",
- (long long)size));
+ cFYI(1, "SetFileSize (via SetFileInfo) %lld",
+ (long long)size);
rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
if (rc)
param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
offset = param_offset + params;
- data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
-
count = sizeof(struct file_end_of_file_info);
pSMB->MaxParameterCount = cpu_to_le16(2);
/* BB find exact max SMB PDU from sess structure BB */
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
if (rc) {
- cFYI(1,
- ("Send error in SetFileInfo (SetFileSize) = %d",
- rc));
+ cFYI(1, "Send error in SetFileInfo (SetFileSize) = %d", rc);
}
/* Note: On -EAGAIN error only caller can retry on handle based calls
int rc = 0;
__u16 params, param_offset, offset, byte_count, count;
- cFYI(1, ("Set Times (via SetFileInfo)"));
+ cFYI(1, "Set Times (via SetFileInfo)");
rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
if (rc)
memcpy(data_offset, data, sizeof(FILE_BASIC_INFO));
rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
if (rc)
- cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc));
+ cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc);
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
return rc;
}
+int
+CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon,
+ bool delete_file, __u16 fid, __u32 pid_of_opener)
+{
+ struct smb_com_transaction2_sfi_req *pSMB = NULL;
+ char *data_offset;
+ int rc = 0;
+ __u16 params, param_offset, offset, byte_count, count;
+
+ cFYI(1, "Set File Disposition (via SetFileInfo)");
+ rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
+
+ if (rc)
+ return rc;
+
+ pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+ pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
+
+ params = 6;
+ pSMB->MaxSetupCount = 0;
+ pSMB->Reserved = 0;
+ pSMB->Flags = 0;
+ pSMB->Timeout = 0;
+ pSMB->Reserved2 = 0;
+ param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
+ offset = param_offset + params;
+
+ data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
+
+ count = 1;
+ pSMB->MaxParameterCount = cpu_to_le16(2);
+ /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
+ pSMB->SetupCount = 1;
+ pSMB->Reserved3 = 0;
+ pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
+ byte_count = 3 /* pad */ + params + count;
+ pSMB->DataCount = cpu_to_le16(count);
+ pSMB->ParameterCount = cpu_to_le16(params);
+ pSMB->TotalDataCount = pSMB->DataCount;
+ pSMB->TotalParameterCount = pSMB->ParameterCount;
+ pSMB->ParameterOffset = cpu_to_le16(param_offset);
+ pSMB->DataOffset = cpu_to_le16(offset);
+ pSMB->Fid = fid;
+ pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO);
+ pSMB->Reserved4 = 0;
+ pSMB->hdr.smb_buf_length += byte_count;
+ pSMB->ByteCount = cpu_to_le16(byte_count);
+ *data_offset = delete_file ? 1 : 0;
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
+ if (rc)
+ cFYI(1, "Send error in SetFileDisposition = %d", rc);
+
+ return rc;
+}
int
CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
char *data_offset;
__u16 params, param_offset, offset, byte_count, count;
- cFYI(1, ("In SetTimes"));
+ cFYI(1, "In SetTimes");
SetTimesRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("SetPathInfo (times) returned %d", rc));
+ cFYI(1, "SetPathInfo (times) returned %d", rc);
cifs_buf_release(pSMB);
int bytes_returned;
int name_len;
- cFYI(1, ("In SetAttrLegacy"));
+ cFYI(1, "In SetAttrLegacy");
SetAttrLgcyRetry:
rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB,
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("Error in LegacySetAttr = %d", rc));
+ cFYI(1, "Error in LegacySetAttr = %d", rc);
cifs_buf_release(pSMB);
}
#endif /* temporarily unneeded SetAttr legacy function */
+static void
+cifs_fill_unix_set_info(FILE_UNIX_BASIC_INFO *data_offset,
+ const struct cifs_unix_set_info_args *args)
+{
+ u64 mode = args->mode;
+
+ /*
+ * Samba server ignores set of file size to zero due to bugs in some
+ * older clients, but we should be precise - we use SetFileSize to
+ * set file size and do not want to truncate file size to zero
+ * accidently as happened on one Samba server beta by putting
+ * zero instead of -1 here
+ */
+ data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
+ data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
+ data_offset->LastStatusChange = cpu_to_le64(args->ctime);
+ data_offset->LastAccessTime = cpu_to_le64(args->atime);
+ data_offset->LastModificationTime = cpu_to_le64(args->mtime);
+ data_offset->Uid = cpu_to_le64(args->uid);
+ data_offset->Gid = cpu_to_le64(args->gid);
+ /* better to leave device as zero when it is */
+ data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
+ data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
+ data_offset->Permissions = cpu_to_le64(mode);
+
+ if (S_ISREG(mode))
+ data_offset->Type = cpu_to_le32(UNIX_FILE);
+ else if (S_ISDIR(mode))
+ data_offset->Type = cpu_to_le32(UNIX_DIR);
+ else if (S_ISLNK(mode))
+ data_offset->Type = cpu_to_le32(UNIX_SYMLINK);
+ else if (S_ISCHR(mode))
+ data_offset->Type = cpu_to_le32(UNIX_CHARDEV);
+ else if (S_ISBLK(mode))
+ data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV);
+ else if (S_ISFIFO(mode))
+ data_offset->Type = cpu_to_le32(UNIX_FIFO);
+ else if (S_ISSOCK(mode))
+ data_offset->Type = cpu_to_le32(UNIX_SOCKET);
+}
+
int
-CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
- const struct cifs_unix_set_info_args *args,
- const struct nls_table *nls_codepage, int remap)
+CIFSSMBUnixSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+ const struct cifs_unix_set_info_args *args,
+ u16 fid, u32 pid_of_opener)
+{
+ struct smb_com_transaction2_sfi_req *pSMB = NULL;
+ FILE_UNIX_BASIC_INFO *data_offset;
+ int rc = 0;
+ u16 params, param_offset, offset, byte_count, count;
+
+ cFYI(1, "Set Unix Info (via SetFileInfo)");
+ rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB);
+
+ if (rc)
+ return rc;
+
+ pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+ pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
+
+ params = 6;
+ pSMB->MaxSetupCount = 0;
+ pSMB->Reserved = 0;
+ pSMB->Flags = 0;
+ pSMB->Timeout = 0;
+ pSMB->Reserved2 = 0;
+ param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
+ offset = param_offset + params;
+
+ data_offset = (FILE_UNIX_BASIC_INFO *)
+ ((char *)(&pSMB->hdr.Protocol) + offset);
+ count = sizeof(FILE_UNIX_BASIC_INFO);
+
+ pSMB->MaxParameterCount = cpu_to_le16(2);
+ /* BB find max SMB PDU from sess */
+ pSMB->MaxDataCount = cpu_to_le16(1000);
+ pSMB->SetupCount = 1;
+ pSMB->Reserved3 = 0;
+ pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION);
+ byte_count = 3 /* pad */ + params + count;
+ pSMB->DataCount = cpu_to_le16(count);
+ pSMB->ParameterCount = cpu_to_le16(params);
+ pSMB->TotalDataCount = pSMB->DataCount;
+ pSMB->TotalParameterCount = pSMB->ParameterCount;
+ pSMB->ParameterOffset = cpu_to_le16(param_offset);
+ pSMB->DataOffset = cpu_to_le16(offset);
+ pSMB->Fid = fid;
+ pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC);
+ pSMB->Reserved4 = 0;
+ pSMB->hdr.smb_buf_length += byte_count;
+ pSMB->ByteCount = cpu_to_le16(byte_count);
+
+ cifs_fill_unix_set_info(data_offset, args);
+
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
+ if (rc)
+ cFYI(1, "Send error in Set Time (SetFileInfo) = %d", rc);
+
+ /* Note: On -EAGAIN error only caller can retry on handle based calls
+ since file handle passed in no longer valid */
+
+ return rc;
+}
+
+int
+CIFSSMBUnixSetPathInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
+ const struct cifs_unix_set_info_args *args,
+ const struct nls_table *nls_codepage, int remap)
{
TRANSACTION2_SPI_REQ *pSMB = NULL;
TRANSACTION2_SPI_RSP *pSMBr = NULL;
int bytes_returned = 0;
FILE_UNIX_BASIC_INFO *data_offset;
__u16 params, param_offset, offset, count, byte_count;
- __u64 mode = args->mode;
- cFYI(1, ("In SetUID/GID/Mode"));
+ cFYI(1, "In SetUID/GID/Mode");
setPermsRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC);
pSMB->Reserved4 = 0;
pSMB->hdr.smb_buf_length += byte_count;
- /* Samba server ignores set of file size to zero due to bugs in some
- older clients, but we should be precise - we use SetFileSize to
- set file size and do not want to truncate file size to zero
- accidently as happened on one Samba server beta by putting
- zero instead of -1 here */
- data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
- data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
- data_offset->LastStatusChange = cpu_to_le64(args->ctime);
- data_offset->LastAccessTime = cpu_to_le64(args->atime);
- data_offset->LastModificationTime = cpu_to_le64(args->mtime);
- data_offset->Uid = cpu_to_le64(args->uid);
- data_offset->Gid = cpu_to_le64(args->gid);
- /* better to leave device as zero when it is */
- data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
- data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
- data_offset->Permissions = cpu_to_le64(mode);
-
- if (S_ISREG(mode))
- data_offset->Type = cpu_to_le32(UNIX_FILE);
- else if (S_ISDIR(mode))
- data_offset->Type = cpu_to_le32(UNIX_DIR);
- else if (S_ISLNK(mode))
- data_offset->Type = cpu_to_le32(UNIX_SYMLINK);
- else if (S_ISCHR(mode))
- data_offset->Type = cpu_to_le32(UNIX_CHARDEV);
- else if (S_ISBLK(mode))
- data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV);
- else if (S_ISFIFO(mode))
- data_offset->Type = cpu_to_le32(UNIX_FIFO);
- else if (S_ISSOCK(mode))
- data_offset->Type = cpu_to_le32(UNIX_SOCKET);
+ cifs_fill_unix_set_info(data_offset, args);
pSMB->ByteCount = cpu_to_le16(byte_count);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("SetPathInfo (perms) returned %d", rc));
+ cFYI(1, "SetPathInfo (perms) returned %d", rc);
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
struct dir_notify_req *dnotify_req;
int bytes_returned;
- cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid));
+ cFYI(1, "In CIFSSMBNotify for file handle %d", (int)netfid);
rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB,
(void **) &pSMBr);
if (rc)
(struct smb_hdr *)pSMBr, &bytes_returned,
CIFS_ASYNC_OP);
if (rc) {
- cFYI(1, ("Error in Notify = %d", rc));
+ cFYI(1, "Error in Notify = %d", rc);
} else {
/* Add file to outstanding requests */
/* BB change to kmem cache alloc */
cifs_buf_release(pSMB);
return rc;
}
+
#ifdef CONFIG_CIFS_XATTR
+/*
+ * Do a path-based QUERY_ALL_EAS call and parse the result. This is a common
+ * function used by listxattr and getxattr type calls. When ea_name is set,
+ * it looks for that attribute name and stuffs that value into the EAData
+ * buffer. When ea_name is NULL, it stuffs a list of attribute names into the
+ * buffer. In both cases, the return value is either the length of the
+ * resulting data or a negative error code. If EAData is a NULL pointer then
+ * the data isn't copied to it, but the length is returned.
+ */
ssize_t
CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName,
- char *EAData, size_t buf_size,
- const struct nls_table *nls_codepage, int remap)
+ const unsigned char *searchName, const unsigned char *ea_name,
+ char *EAData, size_t buf_size,
+ const struct nls_table *nls_codepage, int remap)
{
/* BB assumes one setup word */
TRANSACTION2_QPI_REQ *pSMB = NULL;
TRANSACTION2_QPI_RSP *pSMBr = NULL;
int rc = 0;
int bytes_returned;
- int name_len;
+ int list_len;
+ struct fealist *ea_response_data;
struct fea *temp_fea;
char *temp_ptr;
- __u16 params, byte_count;
+ char *end_of_smb;
+ __u16 params, byte_count, data_offset;
- cFYI(1, ("In Query All EAs path %s", searchName));
+ cFYI(1, "In Query All EAs path %s", searchName);
QAllEAsRetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
return rc;
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
+ list_len =
cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
PATH_MAX, nls_codepage, remap);
- name_len++; /* trailing null */
- name_len *= 2;
+ list_len++; /* trailing null */
+ list_len *= 2;
} else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(searchName, PATH_MAX);
- name_len++; /* trailing null */
- strncpy(pSMB->FileName, searchName, name_len);
+ list_len = strnlen(searchName, PATH_MAX);
+ list_len++; /* trailing null */
+ strncpy(pSMB->FileName, searchName, list_len);
}
- params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
+ params = 2 /* level */ + 4 /* reserved */ + list_len /* includes NUL */;
pSMB->TotalDataCount = 0;
pSMB->MaxParameterCount = cpu_to_le16(2);
/* BB find exact max SMB PDU from sess structure BB */
- pSMB->MaxDataCount = cpu_to_le16(4000);
+ pSMB->MaxDataCount = cpu_to_le16(CIFSMaxBufSize);
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
pSMB->Flags = 0;
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc) {
- cFYI(1, ("Send error in QueryAllEAs = %d", rc));
- } else { /* decode response */
- rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ cFYI(1, "Send error in QueryAllEAs = %d", rc);
+ goto QAllEAsOut;
+ }
- /* BB also check enough total bytes returned */
- /* BB we need to improve the validity checking
- of these trans2 responses */
- if (rc || (pSMBr->ByteCount < 4))
- rc = -EIO; /* bad smb */
- /* else if (pFindData){
- memcpy((char *) pFindData,
- (char *) &pSMBr->hdr.Protocol +
- data_offset, kl);
- }*/ else {
- /* check that length of list is not more than bcc */
- /* check that each entry does not go beyond length
- of list */
- /* check that each element of each entry does not
- go beyond end of list */
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- struct fealist *ea_response_data;
- rc = 0;
- /* validate_trans2_offsets() */
- /* BB check if start of smb + data_offset > &bcc+ bcc */
- ea_response_data = (struct fealist *)
- (((char *) &pSMBr->hdr.Protocol) +
- data_offset);
- name_len = le32_to_cpu(ea_response_data->list_len);
- cFYI(1, ("ea length %d", name_len));
- if (name_len <= 8) {
- /* returned EA size zeroed at top of function */
- cFYI(1, ("empty EA list returned from server"));
- } else {
- /* account for ea list len */
- name_len -= 4;
- temp_fea = ea_response_data->list;
- temp_ptr = (char *)temp_fea;
- while (name_len > 0) {
- __u16 value_len;
- name_len -= 4;
- temp_ptr += 4;
- rc += temp_fea->name_len;
- /* account for prefix user. and trailing null */
- rc = rc + 5 + 1;
- if (rc < (int)buf_size) {
- memcpy(EAData, "user.", 5);
- EAData += 5;
- memcpy(EAData, temp_ptr,
- temp_fea->name_len);
- EAData += temp_fea->name_len;
- /* null terminate name */
- *EAData = 0;
- EAData = EAData + 1;
- } else if (buf_size == 0) {
- /* skip copy - calc size only */
- } else {
- /* stop before overrun buffer */
- rc = -ERANGE;
- break;
- }
- name_len -= temp_fea->name_len;
- temp_ptr += temp_fea->name_len;
- /* account for trailing null */
- name_len--;
- temp_ptr++;
- value_len =
- le16_to_cpu(temp_fea->value_len);
- name_len -= value_len;
- temp_ptr += value_len;
- /* BB check that temp_ptr is still
- within the SMB BB*/
-
- /* no trailing null to account for
- in value len */
- /* go on to next EA */
- temp_fea = (struct fea *)temp_ptr;
- }
- }
- }
+
+ /* BB also check enough total bytes returned */
+ /* BB we need to improve the validity checking
+ of these trans2 responses */
+
+ rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ if (rc || (pSMBr->ByteCount < 4)) {
+ rc = -EIO; /* bad smb */
+ goto QAllEAsOut;
}
- cifs_buf_release(pSMB);
- if (rc == -EAGAIN)
- goto QAllEAsRetry;
- return (ssize_t)rc;
-}
+ /* check that length of list is not more than bcc */
+ /* check that each entry does not go beyond length
+ of list */
+ /* check that each element of each entry does not
+ go beyond end of list */
+ /* validate_trans2_offsets() */
+ /* BB check if start of smb + data_offset > &bcc+ bcc */
-ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon,
- const unsigned char *searchName, const unsigned char *ea_name,
- unsigned char *ea_value, size_t buf_size,
- const struct nls_table *nls_codepage, int remap)
-{
- TRANSACTION2_QPI_REQ *pSMB = NULL;
- TRANSACTION2_QPI_RSP *pSMBr = NULL;
- int rc = 0;
- int bytes_returned;
- int name_len;
- struct fea *temp_fea;
- char *temp_ptr;
- __u16 params, byte_count;
+ data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
+ ea_response_data = (struct fealist *)
+ (((char *) &pSMBr->hdr.Protocol) + data_offset);
- cFYI(1, ("In Query EA path %s", searchName));
-QEARetry:
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
- if (rc)
- return rc;
+ list_len = le32_to_cpu(ea_response_data->list_len);
+ cFYI(1, "ea length %d", list_len);
+ if (list_len <= 8) {
+ cFYI(1, "empty EA list returned from server");
+ goto QAllEAsOut;
+ }
- if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
- cifsConvertToUCS((__le16 *) pSMB->FileName, searchName,
- PATH_MAX, nls_codepage, remap);
- name_len++; /* trailing null */
- name_len *= 2;
- } else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(searchName, PATH_MAX);
- name_len++; /* trailing null */
- strncpy(pSMB->FileName, searchName, name_len);
+ /* make sure list_len doesn't go past end of SMB */
+ end_of_smb = (char *)pByteArea(&pSMBr->hdr) + get_bcc(&pSMBr->hdr);
+ if ((char *)ea_response_data + list_len > end_of_smb) {
+ cFYI(1, "EA list appears to go beyond SMB");
+ rc = -EIO;
+ goto QAllEAsOut;
}
- params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */;
- pSMB->TotalDataCount = 0;
- pSMB->MaxParameterCount = cpu_to_le16(2);
- /* BB find exact max SMB PDU from sess structure BB */
- pSMB->MaxDataCount = cpu_to_le16(4000);
- pSMB->MaxSetupCount = 0;
- pSMB->Reserved = 0;
- pSMB->Flags = 0;
- pSMB->Timeout = 0;
- pSMB->Reserved2 = 0;
- pSMB->ParameterOffset = cpu_to_le16(offsetof(
- struct smb_com_transaction2_qpi_req, InformationLevel) - 4);
- pSMB->DataCount = 0;
- pSMB->DataOffset = 0;
- pSMB->SetupCount = 1;
- pSMB->Reserved3 = 0;
- pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION);
- byte_count = params + 1 /* pad */ ;
- pSMB->TotalParameterCount = cpu_to_le16(params);
- pSMB->ParameterCount = pSMB->TotalParameterCount;
- pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS);
- pSMB->Reserved4 = 0;
- pSMB->hdr.smb_buf_length += byte_count;
- pSMB->ByteCount = cpu_to_le16(byte_count);
+ /* account for ea list len */
+ list_len -= 4;
+ temp_fea = ea_response_data->list;
+ temp_ptr = (char *)temp_fea;
+ while (list_len > 0) {
+ unsigned int name_len;
+ __u16 value_len;
+
+ list_len -= 4;
+ temp_ptr += 4;
+ /* make sure we can read name_len and value_len */
+ if (list_len < 0) {
+ cFYI(1, "EA entry goes beyond length of list");
+ rc = -EIO;
+ goto QAllEAsOut;
+ }
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
- if (rc) {
- cFYI(1, ("Send error in Query EA = %d", rc));
- } else { /* decode response */
- rc = validate_t2((struct smb_t2_rsp *)pSMBr);
+ name_len = temp_fea->name_len;
+ value_len = le16_to_cpu(temp_fea->value_len);
+ list_len -= name_len + 1 + value_len;
+ if (list_len < 0) {
+ cFYI(1, "EA entry goes beyond length of list");
+ rc = -EIO;
+ goto QAllEAsOut;
+ }
- /* BB also check enough total bytes returned */
- /* BB we need to improve the validity checking
- of these trans2 responses */
- if (rc || (pSMBr->ByteCount < 4))
- rc = -EIO; /* bad smb */
- /* else if (pFindData){
- memcpy((char *) pFindData,
- (char *) &pSMBr->hdr.Protocol +
- data_offset, kl);
- }*/ else {
- /* check that length of list is not more than bcc */
- /* check that each entry does not go beyond length
- of list */
- /* check that each element of each entry does not
- go beyond end of list */
- __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
- struct fealist *ea_response_data;
- rc = -ENODATA;
- /* validate_trans2_offsets() */
- /* BB check if start of smb + data_offset > &bcc+ bcc*/
- ea_response_data = (struct fealist *)
- (((char *) &pSMBr->hdr.Protocol) +
- data_offset);
- name_len = le32_to_cpu(ea_response_data->list_len);
- cFYI(1, ("ea length %d", name_len));
- if (name_len <= 8) {
- /* returned EA size zeroed at top of function */
- cFYI(1, ("empty EA list returned from server"));
- } else {
- /* account for ea list len */
- name_len -= 4;
- temp_fea = ea_response_data->list;
- temp_ptr = (char *)temp_fea;
- /* loop through checking if we have a matching
- name and then return the associated value */
- while (name_len > 0) {
- __u16 value_len;
- name_len -= 4;
- temp_ptr += 4;
- value_len =
- le16_to_cpu(temp_fea->value_len);
- /* BB validate that value_len falls within SMB,
- even though maximum for name_len is 255 */
- if (memcmp(temp_fea->name, ea_name,
- temp_fea->name_len) == 0) {
- /* found a match */
- rc = value_len;
- /* account for prefix user. and trailing null */
- if (rc <= (int)buf_size) {
- memcpy(ea_value,
- temp_fea->name+temp_fea->name_len+1,
- rc);
- /* ea values, unlike ea
- names, are not null
- terminated */
- } else if (buf_size == 0) {
- /* skip copy - calc size only */
- } else {
- /* stop before overrun buffer */
- rc = -ERANGE;
- }
- break;
- }
- name_len -= temp_fea->name_len;
- temp_ptr += temp_fea->name_len;
- /* account for trailing null */
- name_len--;
- temp_ptr++;
- name_len -= value_len;
- temp_ptr += value_len;
- /* No trailing null to account for in
- value_len. Go on to next EA */
- temp_fea = (struct fea *)temp_ptr;
+ if (ea_name) {
+ if (strncmp(ea_name, temp_ptr, name_len) == 0) {
+ temp_ptr += name_len + 1;
+ rc = value_len;
+ if (buf_size == 0)
+ goto QAllEAsOut;
+ if ((size_t)value_len > buf_size) {
+ rc = -ERANGE;
+ goto QAllEAsOut;
}
+ memcpy(EAData, temp_ptr, value_len);
+ goto QAllEAsOut;
+ }
+ } else {
+ /* account for prefix user. and trailing null */
+ rc += (5 + 1 + name_len);
+ if (rc < (int) buf_size) {
+ memcpy(EAData, "user.", 5);
+ EAData += 5;
+ memcpy(EAData, temp_ptr, name_len);
+ EAData += name_len;
+ /* null terminate name */
+ *EAData = 0;
+ ++EAData;
+ } else if (buf_size == 0) {
+ /* skip copy - calc size only */
+ } else {
+ /* stop before overrun buffer */
+ rc = -ERANGE;
+ break;
}
}
+ temp_ptr += name_len + 1 + value_len;
+ temp_fea = (struct fea *)temp_ptr;
}
+
+ /* didn't find the named attribute */
+ if (ea_name)
+ rc = -ENODATA;
+
+QAllEAsOut:
cifs_buf_release(pSMB);
if (rc == -EAGAIN)
- goto QEARetry;
+ goto QAllEAsRetry;
return (ssize_t)rc;
}
int bytes_returned = 0;
__u16 params, param_offset, byte_count, offset, count;
- cFYI(1, ("In SetEA"));
+ cFYI(1, "In SetEA");
SetEARetry:
rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned, 0);
if (rc)
- cFYI(1, ("SetPathInfo (EA) returned %d", rc));
+ cFYI(1, "SetPathInfo (EA) returned %d", rc);
cifs_buf_release(pSMB);
projects / linux-flexiantxendom0-natty.git / blobdiff