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Diffstat (limited to 'fs/cifs/cifssmb.c')
-rw-r--r--fs/cifs/cifssmb.c289
1 files changed, 130 insertions, 159 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index f0cf934ba877..76d0d2998850 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -86,32 +86,6 @@ static struct {
#endif /* CONFIG_CIFS_WEAK_PW_HASH */
#endif /* CIFS_POSIX */
-#ifdef CONFIG_HIGHMEM
-/*
- * On arches that have high memory, kmap address space is limited. By
- * serializing the kmap operations on those arches, we ensure that we don't
- * end up with a bunch of threads in writeback with partially mapped page
- * arrays, stuck waiting for kmap to come back. That situation prevents
- * progress and can deadlock.
- */
-static DEFINE_MUTEX(cifs_kmap_mutex);
-
-static inline void
-cifs_kmap_lock(void)
-{
- mutex_lock(&cifs_kmap_mutex);
-}
-
-static inline void
-cifs_kmap_unlock(void)
-{
- mutex_unlock(&cifs_kmap_mutex);
-}
-#else /* !CONFIG_HIGHMEM */
-#define cifs_kmap_lock() do { ; } while(0)
-#define cifs_kmap_unlock() do { ; } while(0)
-#endif /* CONFIG_HIGHMEM */
-
/*
* Mark as invalid, all open files on tree connections since they
* were closed when session to server was lost.
@@ -751,6 +725,8 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
ECHO_REQ *smb;
int rc = 0;
struct kvec iov;
+ struct smb_rqst rqst = { .rq_iov = &iov,
+ .rq_nvec = 1 };
cFYI(1, "In echo request");
@@ -768,7 +744,7 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
iov.iov_base = smb;
iov.iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4;
- rc = cifs_call_async(server, &iov, 1, NULL, cifs_echo_callback,
+ rc = cifs_call_async(server, &rqst, NULL, cifs_echo_callback,
server, CIFS_ASYNC_OP | CIFS_ECHO_OP);
if (rc)
cFYI(1, "Echo request failed: %d", rc);
@@ -902,15 +878,15 @@ PsxDelete:
}
int
-CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon,
- const char *fileName, const struct nls_table *nls_codepage,
- int remap)
+CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
+ struct cifs_sb_info *cifs_sb)
{
DELETE_FILE_REQ *pSMB = NULL;
DELETE_FILE_RSP *pSMBr = NULL;
int rc = 0;
int bytes_returned;
int name_len;
+ int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
DelFileRetry:
rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB,
@@ -919,15 +895,15 @@ DelFileRetry:
return rc;
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
- cifsConvertToUTF16((__le16 *) pSMB->fileName, fileName,
- PATH_MAX, nls_codepage, remap);
+ name_len = cifsConvertToUTF16((__le16 *) pSMB->fileName, name,
+ PATH_MAX, cifs_sb->local_nls,
+ remap);
name_len++; /* trailing null */
name_len *= 2;
} else { /* BB improve check for buffer overruns BB */
- name_len = strnlen(fileName, PATH_MAX);
+ name_len = strnlen(name, PATH_MAX);
name_len++; /* trailing null */
- strncpy(pSMB->fileName, fileName, name_len);
+ strncpy(pSMB->fileName, name, name_len);
}
pSMB->SearchAttributes =
cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM);
@@ -1440,7 +1416,7 @@ cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
return 0;
}
-static int
+int
cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
{
int length, len;
@@ -1460,10 +1436,10 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
len = min_t(unsigned int, buflen, server->vals->read_rsp_size) -
HEADER_SIZE(server) + 1;
- rdata->iov[0].iov_base = buf + HEADER_SIZE(server) - 1;
- rdata->iov[0].iov_len = len;
+ rdata->iov.iov_base = buf + HEADER_SIZE(server) - 1;
+ rdata->iov.iov_len = len;
- length = cifs_readv_from_socket(server, rdata->iov, 1, len);
+ length = cifs_readv_from_socket(server, &rdata->iov, 1, len);
if (length < 0)
return length;
server->total_read += length;
@@ -1509,19 +1485,19 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
len = data_offset - server->total_read;
if (len > 0) {
/* read any junk before data into the rest of smallbuf */
- rdata->iov[0].iov_base = buf + server->total_read;
- rdata->iov[0].iov_len = len;
- length = cifs_readv_from_socket(server, rdata->iov, 1, len);
+ rdata->iov.iov_base = buf + server->total_read;
+ rdata->iov.iov_len = len;
+ length = cifs_readv_from_socket(server, &rdata->iov, 1, len);
if (length < 0)
return length;
server->total_read += length;
}
/* set up first iov for signature check */
- rdata->iov[0].iov_base = buf;
- rdata->iov[0].iov_len = server->total_read;
+ rdata->iov.iov_base = buf;
+ rdata->iov.iov_len = server->total_read;
cFYI(1, "0: iov_base=%p iov_len=%zu",
- rdata->iov[0].iov_base, rdata->iov[0].iov_len);
+ rdata->iov.iov_base, rdata->iov.iov_len);
/* how much data is in the response? */
data_len = server->ops->read_data_length(buf);
@@ -1531,23 +1507,11 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
return cifs_readv_discard(server, mid);
}
- /* marshal up the page array */
- cifs_kmap_lock();
- len = rdata->marshal_iov(rdata, data_len);
- cifs_kmap_unlock();
- data_len -= len;
-
- /* issue the read if we have any iovecs left to fill */
- if (rdata->nr_iov > 1) {
- length = cifs_readv_from_socket(server, &rdata->iov[1],
- rdata->nr_iov - 1, len);
- if (length < 0)
- return length;
- server->total_read += length;
- } else {
- length = 0;
- }
+ length = rdata->read_into_pages(server, rdata, data_len);
+ if (length < 0)
+ return length;
+ server->total_read += length;
rdata->bytes = length;
cFYI(1, "total_read=%u buflen=%u remaining=%u", server->total_read,
@@ -1567,6 +1531,12 @@ cifs_readv_callback(struct mid_q_entry *mid)
struct cifs_readdata *rdata = mid->callback_data;
struct cifs_tcon *tcon = tlink_tcon(rdata->cfile->tlink);
struct TCP_Server_Info *server = tcon->ses->server;
+ struct smb_rqst rqst = { .rq_iov = &rdata->iov,
+ .rq_nvec = 1,
+ .rq_pages = rdata->pages,
+ .rq_npages = rdata->nr_pages,
+ .rq_pagesz = rdata->pagesz,
+ .rq_tailsz = rdata->tailsz };
cFYI(1, "%s: mid=%llu state=%d result=%d bytes=%u", __func__,
mid->mid, mid->mid_state, rdata->result, rdata->bytes);
@@ -1578,9 +1548,8 @@ cifs_readv_callback(struct mid_q_entry *mid)
(SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) {
int rc = 0;
- rc = cifs_verify_signature(rdata->iov, rdata->nr_iov,
- server,
- mid->sequence_number + 1);
+ rc = cifs_verify_signature(&rqst, server,
+ mid->sequence_number + 1);
if (rc)
cERROR(1, "SMB signature verification returned "
"error = %d", rc);
@@ -1610,6 +1579,8 @@ cifs_async_readv(struct cifs_readdata *rdata)
READ_REQ *smb = NULL;
int wct;
struct cifs_tcon *tcon = tlink_tcon(rdata->cfile->tlink);
+ struct smb_rqst rqst = { .rq_iov = &rdata->iov,
+ .rq_nvec = 1 };
cFYI(1, "%s: offset=%llu bytes=%u", __func__,
rdata->offset, rdata->bytes);
@@ -1632,7 +1603,7 @@ cifs_async_readv(struct cifs_readdata *rdata)
smb->hdr.PidHigh = cpu_to_le16((__u16)(rdata->pid >> 16));
smb->AndXCommand = 0xFF; /* none */
- smb->Fid = rdata->cfile->netfid;
+ smb->Fid = rdata->cfile->fid.netfid;
smb->OffsetLow = cpu_to_le32(rdata->offset & 0xFFFFFFFF);
if (wct == 12)
smb->OffsetHigh = cpu_to_le32(rdata->offset >> 32);
@@ -1649,13 +1620,12 @@ cifs_async_readv(struct cifs_readdata *rdata)
}
/* 4 for RFC1001 length + 1 for BCC */
- rdata->iov[0].iov_base = smb;
- rdata->iov[0].iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4;
+ rdata->iov.iov_base = smb;
+ rdata->iov.iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4;
kref_get(&rdata->refcount);
- rc = cifs_call_async(tcon->ses->server, rdata->iov, 1,
- cifs_readv_receive, cifs_readv_callback,
- rdata, 0);
+ rc = cifs_call_async(tcon->ses->server, &rqst, cifs_readv_receive,
+ cifs_readv_callback, rdata, 0);
if (rc == 0)
cifs_stats_inc(&tcon->stats.cifs_stats.num_reads);
@@ -1926,6 +1896,7 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
{
int i, rc;
struct inode *inode = wdata->cfile->dentry->d_inode;
+ struct TCP_Server_Info *server;
for (i = 0; i < wdata->nr_pages; i++) {
lock_page(wdata->pages[i]);
@@ -1933,7 +1904,8 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
}
do {
- rc = cifs_async_writev(wdata);
+ server = tlink_tcon(wdata->cfile->tlink)->ses->server;
+ rc = server->ops->async_writev(wdata);
} while (rc == -EAGAIN);
for (i = 0; i < wdata->nr_pages; i++) {
@@ -2053,11 +2025,12 @@ cifs_writev_callback(struct mid_q_entry *mid)
int
cifs_async_writev(struct cifs_writedata *wdata)
{
- int i, rc = -EACCES;
+ int rc = -EACCES;
WRITE_REQ *smb = NULL;
int wct;
struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink);
- struct kvec *iov = NULL;
+ struct kvec iov;
+ struct smb_rqst rqst = { };
if (tcon->ses->capabilities & CAP_LARGE_FILES) {
wct = 14;
@@ -2073,18 +2046,11 @@ cifs_async_writev(struct cifs_writedata *wdata)
if (rc)
goto async_writev_out;
- /* 1 iov per page + 1 for header */
- iov = kzalloc((wdata->nr_pages + 1) * sizeof(*iov), GFP_NOFS);
- if (iov == NULL) {
- rc = -ENOMEM;
- goto async_writev_out;
- }
-
smb->hdr.Pid = cpu_to_le16((__u16)wdata->pid);
smb->hdr.PidHigh = cpu_to_le16((__u16)(wdata->pid >> 16));
smb->AndXCommand = 0xFF; /* none */
- smb->Fid = wdata->cfile->netfid;
+ smb->Fid = wdata->cfile->fid.netfid;
smb->OffsetLow = cpu_to_le32(wdata->offset & 0xFFFFFFFF);
if (wct == 14)
smb->OffsetHigh = cpu_to_le32(wdata->offset >> 32);
@@ -2096,18 +2062,15 @@ cifs_async_writev(struct cifs_writedata *wdata)
cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4);
/* 4 for RFC1001 length + 1 for BCC */
- iov[0].iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4 + 1;
- iov[0].iov_base = smb;
+ iov.iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4 + 1;
+ iov.iov_base = smb;
- /*
- * This function should marshal up the page array into the kvec
- * array, reserving [0] for the header. It should kmap the pages
- * and set the iov_len properly for each one. It may also set
- * wdata->bytes too.
- */
- cifs_kmap_lock();
- wdata->marshal_iov(iov, wdata);
- cifs_kmap_unlock();
+ rqst.rq_iov = &iov;
+ rqst.rq_nvec = 1;
+ rqst.rq_pages = wdata->pages;
+ rqst.rq_npages = wdata->nr_pages;
+ rqst.rq_pagesz = wdata->pagesz;
+ rqst.rq_tailsz = wdata->tailsz;
cFYI(1, "async write at %llu %u bytes", wdata->offset, wdata->bytes);
@@ -2123,32 +2086,26 @@ cifs_async_writev(struct cifs_writedata *wdata)
(struct smb_com_writex_req *)smb;
inc_rfc1001_len(&smbw->hdr, wdata->bytes + 5);
put_bcc(wdata->bytes + 5, &smbw->hdr);
- iov[0].iov_len += 4; /* pad bigger by four bytes */
+ iov.iov_len += 4; /* pad bigger by four bytes */
}
kref_get(&wdata->refcount);
- rc = cifs_call_async(tcon->ses->server, iov, wdata->nr_pages + 1,
- NULL, cifs_writev_callback, wdata, 0);
+ rc = cifs_call_async(tcon->ses->server, &rqst, NULL,
+ cifs_writev_callback, wdata, 0);
if (rc == 0)
cifs_stats_inc(&tcon->stats.cifs_stats.num_writes);
else
kref_put(&wdata->refcount, cifs_writedata_release);
- /* send is done, unmap pages */
- for (i = 0; i < wdata->nr_pages; i++)
- kunmap(wdata->pages[i]);
-
async_writev_out:
cifs_small_buf_release(smb);
- kfree(iov);
return rc;
}
int
CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
- unsigned int *nbytes, struct kvec *iov, int n_vec,
- const int long_op)
+ unsigned int *nbytes, struct kvec *iov, int n_vec)
{
int rc = -EACCES;
WRITE_REQ *pSMB = NULL;
@@ -2219,8 +2176,7 @@ CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
iov[0].iov_len = smb_hdr_len + 8;
- rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type,
- long_op);
+ rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, 0);
cifs_stats_inc(&tcon->stats.cifs_stats.num_writes);
if (rc) {
cFYI(1, "Send error Write2 = %d", rc);
@@ -2557,8 +2513,8 @@ CIFSSMBFlush(const unsigned int xid, struct cifs_tcon *tcon, int smb_file_id)
int
CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
- const char *fromName, const char *toName,
- const struct nls_table *nls_codepage, int remap)
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
{
int rc = 0;
RENAME_REQ *pSMB = NULL;
@@ -2566,6 +2522,7 @@ CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
int bytes_returned;
int name_len, name_len2;
__u16 count;
+ int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
cFYI(1, "In CIFSSMBRename");
renameRetry:
@@ -2580,9 +2537,9 @@ renameRetry:
ATTR_DIRECTORY);
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
- name_len =
- cifsConvertToUTF16((__le16 *) pSMB->OldFileName, fromName,
- PATH_MAX, nls_codepage, remap);
+ name_len = cifsConvertToUTF16((__le16 *) pSMB->OldFileName,
+ from_name, PATH_MAX,
+ cifs_sb->local_nls, remap);
name_len++; /* trailing null */
name_len *= 2;
pSMB->OldFileName[name_len] = 0x04; /* pad */
@@ -2590,17 +2547,18 @@ renameRetry:
pSMB->OldFileName[name_len + 1] = 0x00;
name_len2 =
cifsConvertToUTF16((__le16 *)&pSMB->OldFileName[name_len+2],
- toName, PATH_MAX, nls_codepage, remap);
+ to_name, PATH_MAX, cifs_sb->local_nls,
+ remap);
name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
name_len2 *= 2; /* convert to bytes */
} else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(fromName, PATH_MAX);
+ name_len = strnlen(from_name, PATH_MAX);
name_len++; /* trailing null */
- strncpy(pSMB->OldFileName, fromName, name_len);
- name_len2 = strnlen(toName, PATH_MAX);
+ strncpy(pSMB->OldFileName, from_name, name_len);
+ name_len2 = strnlen(to_name, PATH_MAX);
name_len2++; /* trailing null */
pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */
- strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2);
+ strncpy(&pSMB->OldFileName[name_len + 1], to_name, name_len2);
name_len2++; /* trailing null */
name_len2++; /* signature byte */
}
@@ -2948,8 +2906,8 @@ createHardLinkRetry:
int
CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
- const char *fromName, const char *toName,
- const struct nls_table *nls_codepage, int remap)
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
{
int rc = 0;
NT_RENAME_REQ *pSMB = NULL;
@@ -2957,6 +2915,7 @@ CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
int bytes_returned;
int name_len, name_len2;
__u16 count;
+ int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
cFYI(1, "In CIFSCreateHardLink");
winCreateHardLinkRetry:
@@ -2976,8 +2935,8 @@ winCreateHardLinkRetry:
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
name_len =
- cifsConvertToUTF16((__le16 *) pSMB->OldFileName, fromName,
- PATH_MAX, nls_codepage, remap);
+ cifsConvertToUTF16((__le16 *) pSMB->OldFileName, from_name,
+ PATH_MAX, cifs_sb->local_nls, remap);
name_len++; /* trailing null */
name_len *= 2;
@@ -2986,17 +2945,18 @@ winCreateHardLinkRetry:
pSMB->OldFileName[name_len + 1] = 0x00; /* pad */
name_len2 =
cifsConvertToUTF16((__le16 *)&pSMB->OldFileName[name_len+2],
- toName, PATH_MAX, nls_codepage, remap);
+ to_name, PATH_MAX, cifs_sb->local_nls,
+ remap);
name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ;
name_len2 *= 2; /* convert to bytes */
} else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(fromName, PATH_MAX);
+ name_len = strnlen(from_name, PATH_MAX);
name_len++; /* trailing null */
- strncpy(pSMB->OldFileName, fromName, name_len);
- name_len2 = strnlen(toName, PATH_MAX);
+ strncpy(pSMB->OldFileName, from_name, name_len);
+ name_len2 = strnlen(to_name, PATH_MAX);
name_len2++; /* trailing null */
pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */
- strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2);
+ strncpy(&pSMB->OldFileName[name_len + 1], to_name, name_len2);
name_len2++; /* trailing null */
name_len2++; /* signature byte */
}
@@ -4254,10 +4214,9 @@ UnixQPathInfoRetry:
/* xid, tcon, searchName and codepage are input parms, rest are returned */
int
CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
- const char *searchName,
- const struct nls_table *nls_codepage,
+ const char *searchName, struct cifs_sb_info *cifs_sb,
__u16 *pnetfid, __u16 search_flags,
- struct cifs_search_info *psrch_inf, int remap, const char dirsep)
+ struct cifs_search_info *psrch_inf, bool msearch)
{
/* level 257 SMB_ */
TRANSACTION2_FFIRST_REQ *pSMB = NULL;
@@ -4265,8 +4224,9 @@ CIFSFindFirst(const unsigned int xid, struct cifs_tcon *tcon,
T2_FFIRST_RSP_PARMS *parms;
int rc = 0;
int bytes_returned = 0;
- int name_len;
+ int name_len, remap;
__u16 params, byte_count;
+ struct nls_table *nls_codepage;
cFYI(1, "In FindFirst for %s", searchName);
@@ -4276,6 +4236,9 @@ findFirstRetry:
if (rc)
return rc;
+ nls_codepage = cifs_sb->local_nls;
+ remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
name_len =
cifsConvertToUTF16((__le16 *) pSMB->FileName, searchName,
@@ -4284,24 +4247,29 @@ findFirstRetry:
it got remapped to 0xF03A as if it were part of the
directory name instead of a wildcard */
name_len *= 2;
- pSMB->FileName[name_len] = dirsep;
- pSMB->FileName[name_len+1] = 0;
- pSMB->FileName[name_len+2] = '*';
- pSMB->FileName[name_len+3] = 0;
- name_len += 4; /* now the trailing null */
- pSMB->FileName[name_len] = 0; /* null terminate just in case */
- pSMB->FileName[name_len+1] = 0;
- name_len += 2;
+ if (msearch) {
+ pSMB->FileName[name_len] = CIFS_DIR_SEP(cifs_sb);
+ pSMB->FileName[name_len+1] = 0;
+ pSMB->FileName[name_len+2] = '*';
+ pSMB->FileName[name_len+3] = 0;
+ name_len += 4; /* now the trailing null */
+ /* null terminate just in case */
+ pSMB->FileName[name_len] = 0;
+ pSMB->FileName[name_len+1] = 0;
+ name_len += 2;
+ }
} else { /* BB add check for overrun of SMB buf BB */
name_len = strnlen(searchName, PATH_MAX);
/* BB fix here and in unicode clause above ie
if (name_len > buffersize-header)
free buffer exit; BB */
strncpy(pSMB->FileName, searchName, name_len);
- pSMB->FileName[name_len] = dirsep;
- pSMB->FileName[name_len+1] = '*';
- pSMB->FileName[name_len+2] = 0;
- name_len += 3;
+ if (msearch) {
+ pSMB->FileName[name_len] = CIFS_DIR_SEP(cifs_sb);
+ pSMB->FileName[name_len+1] = '*';
+ pSMB->FileName[name_len+2] = 0;
+ name_len += 3;
+ }
}
params = 12 + name_len /* includes null */ ;
@@ -4389,7 +4357,8 @@ findFirstRetry:
psrch_inf->last_entry = psrch_inf->srch_entries_start +
lnoff;
- *pnetfid = parms->SearchHandle;
+ if (pnetfid)
+ *pnetfid = parms->SearchHandle;
} else {
cifs_buf_release(pSMB);
}
@@ -5417,16 +5386,16 @@ QFSPosixRetry:
}
-/* We can not use write of zero bytes trick to
- set file size due to need for large file support. Also note that
- this SetPathInfo is preferred to SetFileInfo based method in next
- routine which is only needed to work around a sharing violation bug
- in Samba which this routine can run into */
-
+/*
+ * We can not use write of zero bytes trick to set file size due to need for
+ * large file support. Also note that this SetPathInfo is preferred to
+ * SetFileInfo based method in next routine which is only needed to work around
+ * a sharing violation bugin Samba which this routine can run into.
+ */
int
CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
- const char *fileName, __u64 size, bool SetAllocation,
- const struct nls_table *nls_codepage, int remap)
+ const char *file_name, __u64 size, struct cifs_sb_info *cifs_sb,
+ bool set_allocation)
{
struct smb_com_transaction2_spi_req *pSMB = NULL;
struct smb_com_transaction2_spi_rsp *pSMBr = NULL;
@@ -5434,6 +5403,8 @@ CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
int name_len;
int rc = 0;
int bytes_returned = 0;
+ int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+
__u16 params, byte_count, data_count, param_offset, offset;
cFYI(1, "In SetEOF");
@@ -5445,14 +5416,14 @@ SetEOFRetry:
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
name_len =
- cifsConvertToUTF16((__le16 *) pSMB->FileName, fileName,
- PATH_MAX, nls_codepage, remap);
+ cifsConvertToUTF16((__le16 *) pSMB->FileName, file_name,
+ PATH_MAX, cifs_sb->local_nls, remap);
name_len++; /* trailing null */
name_len *= 2;
} else { /* BB improve the check for buffer overruns BB */
- name_len = strnlen(fileName, PATH_MAX);
+ name_len = strnlen(file_name, PATH_MAX);
name_len++; /* trailing null */
- strncpy(pSMB->FileName, fileName, name_len);
+ strncpy(pSMB->FileName, file_name, name_len);
}
params = 6 + name_len;
data_count = sizeof(struct file_end_of_file_info);
@@ -5466,7 +5437,7 @@ SetEOFRetry:
param_offset = offsetof(struct smb_com_transaction2_spi_req,
InformationLevel) - 4;
offset = param_offset + params;
- if (SetAllocation) {
+ if (set_allocation) {
if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
pSMB->InformationLevel =
cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2);
@@ -5513,8 +5484,8 @@ SetEOFRetry:
}
int
-CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, __u64 size,
- __u16 fid, __u32 pid_of_opener, bool SetAllocation)
+CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifsFileInfo *cfile, __u64 size, bool set_allocation)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
struct file_end_of_file_info *parm_data;
@@ -5528,8 +5499,8 @@ CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, __u64 size,
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));
+ pSMB->hdr.Pid = cpu_to_le16((__u16)cfile->pid);
+ pSMB->hdr.PidHigh = cpu_to_le16((__u16)(cfile->pid >> 16));
params = 6;
pSMB->MaxSetupCount = 0;
@@ -5558,8 +5529,8 @@ CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, __u64 size,
+ offset);
pSMB->DataOffset = cpu_to_le16(offset);
parm_data->FileSize = cpu_to_le64(size);
- pSMB->Fid = fid;
- if (SetAllocation) {
+ pSMB->Fid = cfile->fid.netfid;
+ if (set_allocation) {
if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU)
pSMB->InformationLevel =
cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 01:35:17 +0000