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path: root/fs/smb/client/smb2inode.c
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Diffstat (limited to 'fs/smb/client/smb2inode.c')
-rw-r--r--fs/smb/client/smb2inode.c1437
1 files changed, 921 insertions, 516 deletions
diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c
index 0b89f7008ac0..5c02a12251c8 100644
--- a/fs/smb/client/smb2inode.c
+++ b/fs/smb/client/smb2inode.c
@@ -26,13 +26,139 @@
#include "cached_dir.h"
#include "smb2status.h"
-static void
-free_set_inf_compound(struct smb_rqst *rqst)
+static struct reparse_data_buffer *reparse_buf_ptr(struct kvec *iov)
{
- if (rqst[1].rq_iov)
- SMB2_set_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
+ struct reparse_data_buffer *buf;
+ struct smb2_ioctl_rsp *io = iov->iov_base;
+ u32 off, count, len;
+
+ count = le32_to_cpu(io->OutputCount);
+ off = le32_to_cpu(io->OutputOffset);
+ if (check_add_overflow(off, count, &len) || len > iov->iov_len)
+ return ERR_PTR(-EIO);
+
+ buf = (struct reparse_data_buffer *)((u8 *)io + off);
+ len = sizeof(*buf);
+ if (count < len || count < le16_to_cpu(buf->ReparseDataLength) + len)
+ return ERR_PTR(-EIO);
+ return buf;
+}
+
+static inline __u32 file_create_options(struct dentry *dentry)
+{
+ struct cifsInodeInfo *ci;
+
+ if (dentry) {
+ ci = CIFS_I(d_inode(dentry));
+ if (ci->cifsAttrs & ATTR_REPARSE)
+ return OPEN_REPARSE_POINT;
+ }
+ return 0;
+}
+
+/* Parse owner and group from SMB3.1.1 POSIX query info */
+static int parse_posix_sids(struct cifs_open_info_data *data,
+ struct kvec *rsp_iov)
+{
+ struct smb2_query_info_rsp *qi = rsp_iov->iov_base;
+ unsigned int out_len = le32_to_cpu(qi->OutputBufferLength);
+ unsigned int qi_len = sizeof(data->posix_fi);
+ int owner_len, group_len;
+ u8 *sidsbuf, *sidsbuf_end;
+
+ if (out_len <= qi_len)
+ return -EINVAL;
+
+ sidsbuf = (u8 *)qi + le16_to_cpu(qi->OutputBufferOffset) + qi_len;
+ sidsbuf_end = sidsbuf + out_len - qi_len;
+
+ owner_len = posix_info_sid_size(sidsbuf, sidsbuf_end);
+ if (owner_len == -1)
+ return -EINVAL;
+
+ memcpy(&data->posix_owner, sidsbuf, owner_len);
+ group_len = posix_info_sid_size(sidsbuf + owner_len, sidsbuf_end);
+ if (group_len == -1)
+ return -EINVAL;
+
+ memcpy(&data->posix_group, sidsbuf + owner_len, group_len);
+ return 0;
+}
+
+struct wsl_query_ea {
+ __le32 next;
+ __u8 name_len;
+ __u8 name[SMB2_WSL_XATTR_NAME_LEN + 1];
+} __packed;
+
+#define NEXT_OFF cpu_to_le32(sizeof(struct wsl_query_ea))
+
+static const struct wsl_query_ea wsl_query_eas[] = {
+ { .next = NEXT_OFF, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_UID, },
+ { .next = NEXT_OFF, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_GID, },
+ { .next = NEXT_OFF, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_MODE, },
+ { .next = 0, .name_len = SMB2_WSL_XATTR_NAME_LEN, .name = SMB2_WSL_XATTR_DEV, },
+};
+
+static int check_wsl_eas(struct kvec *rsp_iov)
+{
+ struct smb2_file_full_ea_info *ea;
+ struct smb2_query_info_rsp *rsp = rsp_iov->iov_base;
+ unsigned long addr;
+ u32 outlen, next;
+ u16 vlen;
+ u8 nlen;
+ u8 *end;
+
+ outlen = le32_to_cpu(rsp->OutputBufferLength);
+ if (outlen < SMB2_WSL_MIN_QUERY_EA_RESP_SIZE ||
+ outlen > SMB2_WSL_MAX_QUERY_EA_RESP_SIZE)
+ return -EINVAL;
+
+ ea = (void *)((u8 *)rsp_iov->iov_base +
+ le16_to_cpu(rsp->OutputBufferOffset));
+ end = (u8 *)rsp_iov->iov_base + rsp_iov->iov_len;
+ for (;;) {
+ if ((u8 *)ea > end - sizeof(*ea))
+ return -EINVAL;
+
+ nlen = ea->ea_name_length;
+ vlen = le16_to_cpu(ea->ea_value_length);
+ if (nlen != SMB2_WSL_XATTR_NAME_LEN ||
+ (u8 *)ea + nlen + 1 + vlen > end)
+ return -EINVAL;
+
+ switch (vlen) {
+ case 4:
+ if (strncmp(ea->ea_data, SMB2_WSL_XATTR_UID, nlen) &&
+ strncmp(ea->ea_data, SMB2_WSL_XATTR_GID, nlen) &&
+ strncmp(ea->ea_data, SMB2_WSL_XATTR_MODE, nlen))
+ return -EINVAL;
+ break;
+ case 8:
+ if (strncmp(ea->ea_data, SMB2_WSL_XATTR_DEV, nlen))
+ return -EINVAL;
+ break;
+ case 0:
+ if (!strncmp(ea->ea_data, SMB2_WSL_XATTR_UID, nlen) ||
+ !strncmp(ea->ea_data, SMB2_WSL_XATTR_GID, nlen) ||
+ !strncmp(ea->ea_data, SMB2_WSL_XATTR_MODE, nlen) ||
+ !strncmp(ea->ea_data, SMB2_WSL_XATTR_DEV, nlen))
+ break;
+ fallthrough;
+ default:
+ return -EINVAL;
+ }
+
+ next = le32_to_cpu(ea->next_entry_offset);
+ if (!next)
+ break;
+ if (!IS_ALIGNED(next, 4) ||
+ check_add_overflow((unsigned long)ea, next, &addr))
+ return -EINVAL;
+ ea = (void *)addr;
+ }
+ return 0;
}
/*
@@ -45,13 +171,14 @@ free_set_inf_compound(struct smb_rqst *rqst)
*/
static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path,
- __u32 desired_access, __u32 create_disposition, __u32 create_options,
- umode_t mode, void *ptr, int command, struct cifsFileInfo *cfile,
- __u8 **extbuf, size_t *extbuflen,
- struct kvec *out_iov, int *out_buftype)
+ struct cifs_open_parms *oparms, struct kvec *in_iov,
+ int *cmds, int num_cmds, struct cifsFileInfo *cfile,
+ struct kvec *out_iov, int *out_buftype, struct dentry *dentry)
{
+
+ struct reparse_data_buffer *rbuf;
struct smb2_compound_vars *vars = NULL;
- struct kvec *rsp_iov;
+ struct kvec *rsp_iov, *iov;
struct smb_rqst *rqst;
int rc;
__le16 *utf16_path = NULL;
@@ -59,15 +186,24 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_fid fid;
struct cifs_ses *ses = tcon->ses;
struct TCP_Server_Info *server;
- int num_rqst = 0;
- int resp_buftype[3];
+ int num_rqst = 0, i;
+ int resp_buftype[MAX_COMPOUND];
struct smb2_query_info_rsp *qi_rsp = NULL;
struct cifs_open_info_data *idata;
+ struct inode *inode = NULL;
int flags = 0;
__u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
unsigned int size[2];
void *data[2];
- int len;
+ unsigned int len;
+ int retries = 0, cur_sleep = 1;
+
+replay_again:
+ /* reinitialize for possible replay */
+ flags = 0;
+ oplock = SMB2_OPLOCK_LEVEL_NONE;
+ num_rqst = 0;
+ server = cifs_pick_channel(ses);
vars = kzalloc(sizeof(*vars), GFP_ATOMIC);
if (vars == NULL)
@@ -75,12 +211,11 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
rqst = &vars->rqst[0];
rsp_iov = &vars->rsp_iov[0];
- server = cifs_pick_channel(ses);
-
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
- resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
+ for (i = 0; i < ARRAY_SIZE(resp_buftype); i++)
+ resp_buftype[i] = CIFS_NO_BUFFER;
/* We already have a handle so we can skip the open */
if (cfile)
@@ -93,16 +228,28 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
goto finished;
}
- vars->oparms = (struct cifs_open_parms) {
- .tcon = tcon,
- .path = full_path,
- .desired_access = desired_access,
- .disposition = create_disposition,
- .create_options = cifs_create_options(cifs_sb, create_options),
- .fid = &fid,
- .mode = mode,
- .cifs_sb = cifs_sb,
- };
+ /* if there is an existing lease, reuse it */
+
+ /*
+ * note: files with hardlinks cause unexpected behaviour. As per MS-SMB2,
+ * lease keys are associated with the filepath. We are maintaining lease keys
+ * with the inode on the client. If the file has hardlinks, it is possible
+ * that the lease for a file be reused for an operation on its hardlink or
+ * vice versa.
+ * As a workaround, send request using an existing lease key and if the server
+ * returns STATUS_INVALID_PARAMETER, which maps to EINVAL, send the request
+ * again without the lease.
+ */
+ if (dentry) {
+ inode = d_inode(dentry);
+ if (CIFS_I(inode)->lease_granted && server->ops->get_lease_key) {
+ oplock = SMB2_OPLOCK_LEVEL_LEASE;
+ server->ops->get_lease_key(inode, &fid);
+ }
+ }
+
+ vars->oparms = *oparms;
+ vars->oparms.fid = &fid;
rqst[num_rqst].rq_iov = &vars->open_iov[0];
rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;
@@ -118,242 +265,330 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
num_rqst++;
rc = 0;
- /* Operation */
- switch (command) {
- case SMB2_OP_QUERY_INFO:
- rqst[num_rqst].rq_iov = &vars->qi_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- if (cfile)
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- FILE_ALL_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb2_file_all_info) +
- PATH_MAX * 2, 0, NULL);
- else {
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID,
- FILE_ALL_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb2_file_all_info) +
- PATH_MAX * 2, 0, NULL);
- if (!rc) {
+ for (i = 0; i < num_cmds; i++) {
+ /* Operation */
+ switch (cmds[i]) {
+ case SMB2_OP_QUERY_INFO:
+ rqst[num_rqst].rq_iov = &vars->qi_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ if (cfile) {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ } else {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
+ num_rqst++;
+ trace_smb3_query_info_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_POSIX_QUERY_INFO:
+ rqst[num_rqst].rq_iov = &vars->qi_iov;
+ rqst[num_rqst].rq_nvec = 1;
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
- full_path);
- break;
- case SMB2_OP_POSIX_QUERY_INFO:
- rqst[num_rqst].rq_iov = &vars->qi_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- if (cfile)
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- SMB_FIND_FILE_POSIX_INFO,
- SMB2_O_INFO_FILE, 0,
+ if (cfile) {
/* TBD: fix following to allow for longer SIDs */
- sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) +
- (sizeof(struct cifs_sid) * 2), 0, NULL);
- else {
- rc = SMB2_query_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID,
- SMB_FIND_FILE_POSIX_INFO,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) +
- (sizeof(struct cifs_sid) * 2), 0, NULL);
- if (!rc) {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ SMB_FIND_FILE_POSIX_INFO,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb311_posix_qinfo *) +
+ (PATH_MAX * 2) +
+ (sizeof(struct cifs_sid) * 2), 0, NULL);
+ } else {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ SMB_FIND_FILE_POSIX_INFO,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb311_posix_qinfo *) +
+ (PATH_MAX * 2) +
+ (sizeof(struct cifs_sid) * 2), 0, NULL);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
-
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_posix_query_info_compound_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_DELETE:
- trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_MKDIR:
- /*
- * Directories are created through parameters in the
- * SMB2_open() call.
- */
- trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_RMDIR:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 1;
-
- size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
- data[0] = &delete_pending[0];
-
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_DISPOSITION_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (rc)
- goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_SET_EOF:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 1;
+ num_rqst++;
+ trace_smb3_posix_query_info_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_DELETE:
+ trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_MKDIR:
+ /*
+ * Directories are created through parameters in the
+ * SMB2_open() call.
+ */
+ trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_RMDIR:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 1;
- size[0] = 8; /* sizeof __le64 */
- data[0] = ptr;
+ size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
+ data[0] = &delete_pending[0];
- if (cfile) {
rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- current->tgid,
- FILE_END_OF_FILE_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- data, size);
- } else {
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID,
- current->tgid,
- FILE_END_OF_FILE_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- data, size);
- if (!rc) {
+ &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_DISPOSITION_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_EOF:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 1;
+
+ size[0] = in_iov[i].iov_len;
+ data[0] = in_iov[i].iov_base;
+
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid,
+ FILE_END_OF_FILE_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ current->tgid,
+ FILE_END_OF_FILE_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_SET_INFO:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 1;
-
-
- size[0] = sizeof(FILE_BASIC_INFO);
- data[0] = ptr;
-
- if (cfile)
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, current->tgid,
- FILE_BASIC_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- else {
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_BASIC_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (!rc) {
+ num_rqst++;
+ trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_INFO:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 1;
+
+ size[0] = in_iov[i].iov_len;
+ data[0] = in_iov[i].iov_base;
+
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
-
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
- full_path);
- break;
- case SMB2_OP_RENAME:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 2;
+ num_rqst++;
+ trace_smb3_set_info_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_RENAME:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 2;
- len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
+ len = in_iov[i].iov_len;
- vars->rename_info.ReplaceIfExists = 1;
- vars->rename_info.RootDirectory = 0;
- vars->rename_info.FileNameLength = cpu_to_le32(len);
+ vars->rename_info.ReplaceIfExists = 1;
+ vars->rename_info.RootDirectory = 0;
+ vars->rename_info.FileNameLength = cpu_to_le32(len);
- size[0] = sizeof(struct smb2_file_rename_info);
- data[0] = &vars->rename_info;
+ size[0] = sizeof(struct smb2_file_rename_info);
+ data[0] = &vars->rename_info;
- size[1] = len + 2 /* null */;
- data[1] = (__le16 *)ptr;
+ size[1] = len + 2 /* null */;
+ data[1] = in_iov[i].iov_base;
- if (cfile)
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- cfile->fid.persistent_fid,
- cfile->fid.volatile_fid,
- current->tgid, FILE_RENAME_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- else {
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst],
- COMPOUND_FID, COMPOUND_FID,
- current->tgid, FILE_RENAME_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (!rc) {
+ if (cfile) {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ } else {
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
smb2_set_next_command(tcon, &rqst[num_rqst]);
smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
}
- }
- if (rc)
- goto finished;
- num_rqst++;
- trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- case SMB2_OP_HARDLINK:
- rqst[num_rqst].rq_iov = &vars->si_iov[0];
- rqst[num_rqst].rq_nvec = 2;
+ num_rqst++;
+ trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_HARDLINK:
+ rqst[num_rqst].rq_iov = &vars->si_iov[0];
+ rqst[num_rqst].rq_nvec = 2;
- len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
+ len = in_iov[i].iov_len;
- vars->link_info.ReplaceIfExists = 0;
- vars->link_info.RootDirectory = 0;
- vars->link_info.FileNameLength = cpu_to_le32(len);
+ vars->link_info.ReplaceIfExists = 0;
+ vars->link_info.RootDirectory = 0;
+ vars->link_info.FileNameLength = cpu_to_le32(len);
- size[0] = sizeof(struct smb2_file_link_info);
- data[0] = &vars->link_info;
+ size[0] = sizeof(struct smb2_file_link_info);
+ data[0] = &vars->link_info;
- size[1] = len + 2 /* null */;
- data[1] = (__le16 *)ptr;
+ size[1] = len + 2 /* null */;
+ data[1] = in_iov[i].iov_base;
- rc = SMB2_set_info_init(tcon, server,
- &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_LINK_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- if (rc)
- goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
- break;
- default:
- cifs_dbg(VFS, "Invalid command\n");
- rc = -EINVAL;
+ rc = SMB2_set_info_init(tcon, server,
+ &rqst[num_rqst], COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_LINK_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (rc)
+ goto finished;
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst++]);
+ trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
+ break;
+ case SMB2_OP_SET_REPARSE:
+ rqst[num_rqst].rq_iov = vars->io_iov;
+ rqst[num_rqst].rq_nvec = ARRAY_SIZE(vars->io_iov);
+
+ if (cfile) {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FSCTL_SET_REPARSE_POINT,
+ in_iov[i].iov_base,
+ in_iov[i].iov_len, 0);
+ } else {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ FSCTL_SET_REPARSE_POINT,
+ in_iov[i].iov_base,
+ in_iov[i].iov_len, 0);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
+ }
+ num_rqst++;
+ trace_smb3_set_reparse_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_GET_REPARSE:
+ rqst[num_rqst].rq_iov = vars->io_iov;
+ rqst[num_rqst].rq_nvec = ARRAY_SIZE(vars->io_iov);
+
+ if (cfile) {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FSCTL_GET_REPARSE_POINT,
+ NULL, 0, CIFSMaxBufSize);
+ } else {
+ rc = SMB2_ioctl_init(tcon, server, &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ FSCTL_GET_REPARSE_POINT,
+ NULL, 0, CIFSMaxBufSize);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
+ }
+ num_rqst++;
+ trace_smb3_get_reparse_compound_enter(xid, ses->Suid,
+ tcon->tid, full_path);
+ break;
+ case SMB2_OP_QUERY_WSL_EA:
+ rqst[num_rqst].rq_iov = &vars->ea_iov;
+ rqst[num_rqst].rq_nvec = 1;
+
+ if (cfile) {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FILE_FULL_EA_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ SMB2_WSL_MAX_QUERY_EA_RESP_SIZE,
+ sizeof(wsl_query_eas),
+ (void *)wsl_query_eas);
+ } else {
+ rc = SMB2_query_info_init(tcon, server,
+ &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ FILE_FULL_EA_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ SMB2_WSL_MAX_QUERY_EA_RESP_SIZE,
+ sizeof(wsl_query_eas),
+ (void *)wsl_query_eas);
+ }
+ if (!rc && (!cfile || num_rqst > 1)) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ } else if (rc) {
+ goto finished;
+ }
+ num_rqst++;
+ break;
+ default:
+ cifs_dbg(VFS, "Invalid command\n");
+ rc = -EINVAL;
+ }
}
if (rc)
goto finished;
@@ -375,157 +610,219 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
num_rqst++;
if (cfile) {
+ if (retries)
+ for (i = 1; i < num_rqst - 2; i++)
+ smb2_set_replay(server, &rqst[i]);
+
rc = compound_send_recv(xid, ses, server,
flags, num_rqst - 2,
&rqst[1], &resp_buftype[1],
&rsp_iov[1]);
- } else
+ } else {
+ if (retries)
+ for (i = 0; i < num_rqst; i++)
+ smb2_set_replay(server, &rqst[i]);
+
rc = compound_send_recv(xid, ses, server,
flags, num_rqst,
rqst, resp_buftype,
rsp_iov);
+ }
- finished:
- SMB2_open_free(&rqst[0]);
+finished:
+ num_rqst = 0;
+ SMB2_open_free(&rqst[num_rqst++]);
if (rc == -EREMCHG) {
pr_warn_once("server share %s deleted\n", tcon->tree_name);
tcon->need_reconnect = true;
}
- switch (command) {
- case SMB2_OP_QUERY_INFO:
- idata = ptr;
- if (rc == 0 && cfile && cfile->symlink_target) {
- idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
- if (!idata->symlink_target)
- rc = -ENOMEM;
- }
- if (rc == 0) {
- qi_rsp = (struct smb2_query_info_rsp *)
- rsp_iov[1].iov_base;
- rc = smb2_validate_and_copy_iov(
- le16_to_cpu(qi_rsp->OutputBufferOffset),
- le32_to_cpu(qi_rsp->OutputBufferLength),
- &rsp_iov[1], sizeof(idata->fi), (char *)&idata->fi);
- }
- if (rqst[1].rq_iov)
- SMB2_query_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
- if (rc)
- trace_smb3_query_info_compound_err(xid, ses->Suid,
- tcon->tid, rc);
- else
- trace_smb3_query_info_compound_done(xid, ses->Suid,
- tcon->tid);
- break;
- case SMB2_OP_POSIX_QUERY_INFO:
- idata = ptr;
- if (rc == 0 && cfile && cfile->symlink_target) {
- idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
- if (!idata->symlink_target)
- rc = -ENOMEM;
- }
- if (rc == 0) {
- qi_rsp = (struct smb2_query_info_rsp *)
- rsp_iov[1].iov_base;
- rc = smb2_validate_and_copy_iov(
- le16_to_cpu(qi_rsp->OutputBufferOffset),
- le32_to_cpu(qi_rsp->OutputBufferLength),
- &rsp_iov[1], sizeof(idata->posix_fi) /* add SIDs */,
- (char *)&idata->posix_fi);
- }
- if (rc == 0) {
- unsigned int length = le32_to_cpu(qi_rsp->OutputBufferLength);
-
- if (length > sizeof(idata->posix_fi)) {
- char *base = (char *)rsp_iov[1].iov_base +
- le16_to_cpu(qi_rsp->OutputBufferOffset) +
- sizeof(idata->posix_fi);
- *extbuflen = length - sizeof(idata->posix_fi);
- *extbuf = kmemdup(base, *extbuflen, GFP_KERNEL);
- if (!*extbuf)
+ for (i = 0; i < num_cmds; i++) {
+ switch (cmds[i]) {
+ case SMB2_OP_QUERY_INFO:
+ idata = in_iov[i].iov_base;
+ if (rc == 0 && cfile && cfile->symlink_target) {
+ idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
+ if (!idata->symlink_target)
rc = -ENOMEM;
+ }
+ if (rc == 0) {
+ qi_rsp = (struct smb2_query_info_rsp *)
+ rsp_iov[i + 1].iov_base;
+ rc = smb2_validate_and_copy_iov(
+ le16_to_cpu(qi_rsp->OutputBufferOffset),
+ le32_to_cpu(qi_rsp->OutputBufferLength),
+ &rsp_iov[i + 1], sizeof(idata->fi), (char *)&idata->fi);
+ }
+ SMB2_query_info_free(&rqst[num_rqst++]);
+ if (rc)
+ trace_smb3_query_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_query_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ break;
+ case SMB2_OP_POSIX_QUERY_INFO:
+ idata = in_iov[i].iov_base;
+ if (rc == 0 && cfile && cfile->symlink_target) {
+ idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
+ if (!idata->symlink_target)
+ rc = -ENOMEM;
+ }
+ if (rc == 0) {
+ qi_rsp = (struct smb2_query_info_rsp *)
+ rsp_iov[i + 1].iov_base;
+ rc = smb2_validate_and_copy_iov(
+ le16_to_cpu(qi_rsp->OutputBufferOffset),
+ le32_to_cpu(qi_rsp->OutputBufferLength),
+ &rsp_iov[i + 1], sizeof(idata->posix_fi) /* add SIDs */,
+ (char *)&idata->posix_fi);
+ }
+ if (rc == 0)
+ rc = parse_posix_sids(idata, &rsp_iov[i + 1]);
+
+ SMB2_query_info_free(&rqst[num_rqst++]);
+ if (rc)
+ trace_smb3_posix_query_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_posix_query_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ break;
+ case SMB2_OP_DELETE:
+ if (rc)
+ trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc);
+ else {
+ /*
+ * If dentry (hence, inode) is NULL, lease break is going to
+ * take care of degrading leases on handles for deleted files.
+ */
+ if (inode)
+ cifs_mark_open_handles_for_deleted_file(inode, full_path);
+ trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
+ }
+ break;
+ case SMB2_OP_MKDIR:
+ if (rc)
+ trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
+ break;
+ case SMB2_OP_HARDLINK:
+ if (rc)
+ trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_RENAME:
+ if (rc)
+ trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_RMDIR:
+ if (rc)
+ trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_SET_EOF:
+ if (rc)
+ trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc);
+ else
+ trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_SET_INFO:
+ if (rc)
+ trace_smb3_set_info_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ else
+ trace_smb3_set_info_compound_done(xid, ses->Suid,
+ tcon->tid);
+ SMB2_set_info_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_SET_REPARSE:
+ if (rc) {
+ trace_smb3_set_reparse_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
} else {
- rc = -EINVAL;
+ trace_smb3_set_reparse_compound_done(xid, ses->Suid,
+ tcon->tid);
}
+ SMB2_ioctl_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_GET_REPARSE:
+ if (!rc) {
+ iov = &rsp_iov[i + 1];
+ idata = in_iov[i].iov_base;
+ idata->reparse.io.iov = *iov;
+ idata->reparse.io.buftype = resp_buftype[i + 1];
+ rbuf = reparse_buf_ptr(iov);
+ if (IS_ERR(rbuf)) {
+ rc = PTR_ERR(rbuf);
+ trace_smb3_set_reparse_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ } else {
+ idata->reparse.tag = le32_to_cpu(rbuf->ReparseTag);
+ trace_smb3_set_reparse_compound_done(xid, ses->Suid,
+ tcon->tid);
+ }
+ memset(iov, 0, sizeof(*iov));
+ resp_buftype[i + 1] = CIFS_NO_BUFFER;
+ } else {
+ trace_smb3_set_reparse_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ }
+ SMB2_ioctl_free(&rqst[num_rqst++]);
+ break;
+ case SMB2_OP_QUERY_WSL_EA:
+ if (!rc) {
+ idata = in_iov[i].iov_base;
+ qi_rsp = rsp_iov[i + 1].iov_base;
+ data[0] = (u8 *)qi_rsp + le16_to_cpu(qi_rsp->OutputBufferOffset);
+ size[0] = le32_to_cpu(qi_rsp->OutputBufferLength);
+ rc = check_wsl_eas(&rsp_iov[i + 1]);
+ if (!rc) {
+ memcpy(idata->wsl.eas, data[0], size[0]);
+ idata->wsl.eas_len = size[0];
+ }
+ }
+ if (!rc) {
+ trace_smb3_query_wsl_ea_compound_done(xid, ses->Suid,
+ tcon->tid);
+ } else {
+ trace_smb3_query_wsl_ea_compound_err(xid, ses->Suid,
+ tcon->tid, rc);
+ }
+ SMB2_query_info_free(&rqst[num_rqst++]);
+ break;
}
- if (rqst[1].rq_iov)
- SMB2_query_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
- if (rc)
- trace_smb3_posix_query_info_compound_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_posix_query_info_compound_done(xid, ses->Suid, tcon->tid);
- break;
- case SMB2_OP_DELETE:
- if (rc)
- trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
- if (rqst[1].rq_iov)
- SMB2_close_free(&rqst[1]);
- break;
- case SMB2_OP_MKDIR:
- if (rc)
- trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
- if (rqst[1].rq_iov)
- SMB2_close_free(&rqst[1]);
- break;
- case SMB2_OP_HARDLINK:
- if (rc)
- trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_RENAME:
- if (rc)
- trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_RMDIR:
- if (rc)
- trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_SET_EOF:
- if (rc)
- trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc);
- else
- trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
- free_set_inf_compound(rqst);
- break;
- case SMB2_OP_SET_INFO:
- if (rc)
- trace_smb3_set_info_compound_err(xid, ses->Suid,
- tcon->tid, rc);
- else
- trace_smb3_set_info_compound_done(xid, ses->Suid,
- tcon->tid);
- free_set_inf_compound(rqst);
- break;
}
+ SMB2_close_free(&rqst[num_rqst]);
- if (cfile)
- cifsFileInfo_put(cfile);
-
+ num_cmds += 2;
if (out_iov && out_buftype) {
- memcpy(out_iov, rsp_iov, 3 * sizeof(*out_iov));
- memcpy(out_buftype, resp_buftype, 3 * sizeof(*out_buftype));
+ memcpy(out_iov, rsp_iov, num_cmds * sizeof(*out_iov));
+ memcpy(out_buftype, resp_buftype,
+ num_cmds * sizeof(*out_buftype));
} else {
- free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
- free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
- free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
+ for (i = 0; i < num_cmds; i++)
+ free_rsp_buf(resp_buftype[i], rsp_iov[i].iov_base);
}
+ num_cmds -= 2; /* correct num_cmds as there could be a retry */
kfree(vars);
+
+ if (is_replayable_error(rc) &&
+ smb2_should_replay(tcon, &retries, &cur_sleep))
+ goto replay_again;
+
+ if (cfile)
+ cifsFileInfo_put(cfile);
+
return rc;
}
@@ -555,7 +852,7 @@ static int parse_create_response(struct cifs_open_info_data *data,
break;
}
data->reparse_point = reparse_point;
- data->reparse_tag = tag;
+ data->reparse.tag = tag;
return rc;
}
@@ -565,38 +862,64 @@ int smb2_query_path_info(const unsigned int xid,
const char *full_path,
struct cifs_open_info_data *data)
{
+ struct cifs_open_parms oparms;
__u32 create_options = 0;
struct cifsFileInfo *cfile;
struct cached_fid *cfid = NULL;
struct smb2_hdr *hdr;
- struct kvec out_iov[3] = {};
+ struct kvec in_iov[3], out_iov[3] = {};
int out_buftype[3] = {};
+ int cmds[3];
bool islink;
+ int i, num_cmds = 0;
int rc, rc2;
data->adjust_tz = false;
data->reparse_point = false;
- if (strcmp(full_path, ""))
- rc = -ENOENT;
- else
- rc = open_cached_dir(xid, tcon, full_path, cifs_sb, false, &cfid);
- /* If it is a root and its handle is cached then use it */
- if (!rc) {
- if (cfid->file_all_info_is_valid) {
- memcpy(&data->fi, &cfid->file_all_info, sizeof(data->fi));
+ /*
+ * BB TODO: Add support for using cached root handle in SMB3.1.1 POSIX.
+ * Create SMB2_query_posix_info worker function to do non-compounded
+ * query when we already have an open file handle for this. For now this
+ * is fast enough (always using the compounded version).
+ */
+ if (!tcon->posix_extensions) {
+ if (*full_path) {
+ rc = -ENOENT;
} else {
- rc = SMB2_query_info(xid, tcon, cfid->fid.persistent_fid,
- cfid->fid.volatile_fid, &data->fi);
+ rc = open_cached_dir(xid, tcon, full_path,
+ cifs_sb, false, &cfid);
}
- close_cached_dir(cfid);
- return rc;
+ /* If it is a root and its handle is cached then use it */
+ if (!rc) {
+ if (cfid->file_all_info_is_valid) {
+ memcpy(&data->fi, &cfid->file_all_info,
+ sizeof(data->fi));
+ } else {
+ rc = SMB2_query_info(xid, tcon,
+ cfid->fid.persistent_fid,
+ cfid->fid.volatile_fid,
+ &data->fi);
+ }
+ close_cached_dir(cfid);
+ return rc;
+ }
+ cmds[num_cmds++] = SMB2_OP_QUERY_INFO;
+ } else {
+ cmds[num_cmds++] = SMB2_OP_POSIX_QUERY_INFO;
}
+ in_iov[0].iov_base = data;
+ in_iov[0].iov_len = sizeof(*data);
+ in_iov[1] = in_iov[0];
+ in_iov[2] = in_iov[0];
+
cifs_get_readable_path(tcon, full_path, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, ACL_NO_MODE, data, SMB2_OP_QUERY_INFO, cfile,
- NULL, NULL, out_iov, out_buftype);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_READ_ATTRIBUTES,
+ FILE_OPEN, create_options, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
+ &oparms, in_iov, cmds, num_cmds,
+ cfile, out_iov, out_buftype, NULL);
hdr = out_iov[0].iov_base;
/*
* If first iov is unset, then SMB session was dropped or we've got a
@@ -608,18 +931,30 @@ int smb2_query_path_info(const unsigned int xid,
switch (rc) {
case 0:
case -EOPNOTSUPP:
+ /*
+ * BB TODO: When support for special files added to Samba
+ * re-verify this path.
+ */
rc = parse_create_response(data, cifs_sb, &out_iov[0]);
if (rc || !data->reparse_point)
goto out;
- create_options |= OPEN_REPARSE_POINT;
- /* Failed on a symbolic link - query a reparse point info */
+ cmds[num_cmds++] = SMB2_OP_QUERY_WSL_EA;
+ /*
+ * Skip SMB2_OP_GET_REPARSE if symlink already parsed in create
+ * response.
+ */
+ if (data->reparse.tag != IO_REPARSE_TAG_SYMLINK)
+ cmds[num_cmds++] = SMB2_OP_GET_REPARSE;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ FILE_READ_ATTRIBUTES | FILE_READ_EA,
+ FILE_OPEN, create_options |
+ OPEN_REPARSE_POINT, ACL_NO_MODE);
cifs_get_readable_path(tcon, full_path, &cfile);
rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, ACL_NO_MODE, data,
- SMB2_OP_QUERY_INFO, cfile, NULL, NULL,
- NULL, NULL);
+ &oparms, in_iov, cmds, num_cmds,
+ cfile, NULL, NULL, NULL);
break;
case -EREMOTE:
break;
@@ -637,93 +972,8 @@ int smb2_query_path_info(const unsigned int xid,
}
out:
- free_rsp_buf(out_buftype[0], out_iov[0].iov_base);
- free_rsp_buf(out_buftype[1], out_iov[1].iov_base);
- free_rsp_buf(out_buftype[2], out_iov[2].iov_base);
- return rc;
-}
-
-int smb311_posix_query_path_info(const unsigned int xid,
- struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb,
- const char *full_path,
- struct cifs_open_info_data *data,
- struct cifs_sid *owner,
- struct cifs_sid *group)
-{
- int rc;
- __u32 create_options = 0;
- struct cifsFileInfo *cfile;
- struct kvec out_iov[3] = {};
- int out_buftype[3] = {};
- __u8 *sidsbuf = NULL;
- __u8 *sidsbuf_end = NULL;
- size_t sidsbuflen = 0;
- size_t owner_len, group_len;
-
- data->adjust_tz = false;
- data->reparse_point = false;
-
- /*
- * BB TODO: Add support for using the cached root handle.
- * Create SMB2_query_posix_info worker function to do non-compounded query
- * when we already have an open file handle for this. For now this is fast enough
- * (always using the compounded version).
- */
-
- cifs_get_readable_path(tcon, full_path, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, ACL_NO_MODE, data, SMB2_OP_POSIX_QUERY_INFO, cfile,
- &sidsbuf, &sidsbuflen, out_iov, out_buftype);
- /*
- * If first iov is unset, then SMB session was dropped or we've got a
- * cached open file (@cfile).
- */
- if (!out_iov[0].iov_base || out_buftype[0] == CIFS_NO_BUFFER)
- goto out;
-
- switch (rc) {
- case 0:
- case -EOPNOTSUPP:
- /* BB TODO: When support for special files added to Samba re-verify this path */
- rc = parse_create_response(data, cifs_sb, &out_iov[0]);
- if (rc || !data->reparse_point)
- goto out;
-
- create_options |= OPEN_REPARSE_POINT;
- /* Failed on a symbolic link - query a reparse point info */
- cifs_get_readable_path(tcon, full_path, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES,
- FILE_OPEN, create_options, ACL_NO_MODE, data,
- SMB2_OP_POSIX_QUERY_INFO, cfile,
- &sidsbuf, &sidsbuflen, NULL, NULL);
- break;
- }
-
-out:
- if (rc == 0) {
- sidsbuf_end = sidsbuf + sidsbuflen;
-
- owner_len = posix_info_sid_size(sidsbuf, sidsbuf_end);
- if (owner_len == -1) {
- rc = -EINVAL;
- goto out;
- }
- memcpy(owner, sidsbuf, owner_len);
-
- group_len = posix_info_sid_size(
- sidsbuf + owner_len, sidsbuf_end);
- if (group_len == -1) {
- rc = -EINVAL;
- goto out;
- }
- memcpy(group, sidsbuf + owner_len, group_len);
- }
-
- kfree(sidsbuf);
- free_rsp_buf(out_buftype[0], out_iov[0].iov_base);
- free_rsp_buf(out_buftype[1], out_iov[1].iov_base);
- free_rsp_buf(out_buftype[2], out_iov[2].iov_base);
+ for (i = 0; i < ARRAY_SIZE(out_buftype); i++)
+ free_rsp_buf(out_buftype[i], out_iov[i].iov_base);
return rc;
}
@@ -732,10 +982,14 @@ smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode,
struct cifs_tcon *tcon, const char *name,
struct cifs_sb_info *cifs_sb)
{
- return smb2_compound_op(xid, tcon, cifs_sb, name,
- FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR,
- NULL, NULL, NULL, NULL, NULL);
+ struct cifs_open_parms oparms;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, FILE_WRITE_ATTRIBUTES,
+ FILE_CREATE, CREATE_NOT_FILE, mode);
+ return smb2_compound_op(xid, tcon, cifs_sb,
+ name, &oparms, NULL,
+ &(int){SMB2_OP_MKDIR}, 1,
+ NULL, NULL, NULL, NULL);
}
void
@@ -743,21 +997,26 @@ smb2_mkdir_setinfo(struct inode *inode, const char *name,
struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
const unsigned int xid)
{
- FILE_BASIC_INFO data;
+ struct cifs_open_parms oparms;
+ FILE_BASIC_INFO data = {};
struct cifsInodeInfo *cifs_i;
struct cifsFileInfo *cfile;
+ struct kvec in_iov;
u32 dosattrs;
int tmprc;
- memset(&data, 0, sizeof(data));
+ in_iov.iov_base = &data;
+ in_iov.iov_len = sizeof(data);
cifs_i = CIFS_I(inode);
dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
data.Attributes = cpu_to_le32(dosattrs);
cifs_get_writable_path(tcon, name, FIND_WR_ANY, &cfile);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, FILE_WRITE_ATTRIBUTES,
+ FILE_CREATE, CREATE_NOT_FILE, ACL_NO_MODE);
tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
- FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, ACL_NO_MODE,
- &data, SMB2_OP_SET_INFO, cfile, NULL, NULL, NULL, NULL);
+ &oparms, &in_iov,
+ &(int){SMB2_OP_SET_INFO}, 1,
+ cfile, NULL, NULL, NULL);
if (tmprc == 0)
cifs_i->cifsAttrs = dosattrs;
}
@@ -766,27 +1025,48 @@ int
smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
struct cifs_sb_info *cifs_sb)
{
+ struct cifs_open_parms oparms;
+
drop_cached_dir_by_name(xid, tcon, name, cifs_sb);
- return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
- CREATE_NOT_FILE, ACL_NO_MODE,
- NULL, SMB2_OP_RMDIR, NULL, NULL, NULL, NULL, NULL);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name, DELETE,
+ FILE_OPEN, CREATE_NOT_FILE, ACL_NO_MODE);
+ return smb2_compound_op(xid, tcon, cifs_sb,
+ name, &oparms, NULL,
+ &(int){SMB2_OP_RMDIR}, 1,
+ NULL, NULL, NULL, NULL);
}
int
smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
- struct cifs_sb_info *cifs_sb)
+ struct cifs_sb_info *cifs_sb, struct dentry *dentry)
{
- return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
- CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
- ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL, NULL, NULL, NULL, NULL);
+ struct cifs_open_parms oparms;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, name,
+ DELETE, FILE_OPEN,
+ CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
+ ACL_NO_MODE);
+ int rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
+ NULL, &(int){SMB2_OP_DELETE}, 1,
+ NULL, NULL, NULL, dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease");
+ rc = smb2_compound_op(xid, tcon, cifs_sb, name, &oparms,
+ NULL, &(int){SMB2_OP_DELETE}, 1,
+ NULL, NULL, NULL, NULL);
+ }
+ return rc;
}
-static int
-smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
- const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb, __u32 access, int command,
- struct cifsFileInfo *cfile)
+static int smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb,
+ __u32 create_options, __u32 access,
+ int command, struct cifsFileInfo *cfile,
+ struct dentry *dentry)
{
+ struct cifs_open_parms oparms;
+ struct kvec in_iov;
__le16 *smb2_to_name = NULL;
int rc;
@@ -795,60 +1075,95 @@ smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
rc = -ENOMEM;
goto smb2_rename_path;
}
- rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
- FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name,
- command, cfile, NULL, NULL, NULL, NULL);
+ in_iov.iov_base = smb2_to_name;
+ in_iov.iov_len = 2 * UniStrnlen((wchar_t *)smb2_to_name, PATH_MAX);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, from_name, access, FILE_OPEN,
+ create_options, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, from_name,
+ &oparms, &in_iov, &command, 1,
+ cfile, NULL, NULL, dentry);
smb2_rename_path:
kfree(smb2_to_name);
return rc;
}
-int
-smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
- const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb)
+int smb2_rename_path(const unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct dentry *source_dentry,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
{
struct cifsFileInfo *cfile;
+ __u32 co = file_create_options(source_dentry);
drop_cached_dir_by_name(xid, tcon, from_name, cifs_sb);
cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile);
- return smb2_set_path_attr(xid, tcon, from_name, to_name,
- cifs_sb, DELETE, SMB2_OP_RENAME, cfile);
+ int rc = smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+ co, DELETE, SMB2_OP_RENAME, cfile, source_dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease");
+ rc = smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+ co, DELETE, SMB2_OP_RENAME, cfile, NULL);
+ }
+ return rc;
}
-int
-smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
- const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb)
+int smb2_create_hardlink(const unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct dentry *source_dentry,
+ const char *from_name, const char *to_name,
+ struct cifs_sb_info *cifs_sb)
{
- return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
- FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK,
- NULL);
+ __u32 co = file_create_options(source_dentry);
+
+ return smb2_set_path_attr(xid, tcon, from_name, to_name,
+ cifs_sb, co, FILE_READ_ATTRIBUTES,
+ SMB2_OP_HARDLINK, NULL, NULL);
}
int
smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
const char *full_path, __u64 size,
- struct cifs_sb_info *cifs_sb, bool set_alloc)
+ struct cifs_sb_info *cifs_sb, bool set_alloc,
+ struct dentry *dentry)
{
- __le64 eof = cpu_to_le64(size);
+ struct cifs_open_parms oparms;
struct cifsFileInfo *cfile;
+ struct kvec in_iov;
+ __le64 eof = cpu_to_le64(size);
+ int rc;
+ in_iov.iov_base = &eof;
+ in_iov.iov_len = sizeof(eof);
cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
- return smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE,
- &eof, SMB2_OP_SET_EOF, cfile, NULL, NULL, NULL, NULL);
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_WRITE_DATA,
+ FILE_OPEN, 0, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_SET_EOF}, 1,
+ cfile, NULL, NULL, dentry);
+ if (rc == -EINVAL) {
+ cifs_dbg(FYI, "invalid lease key, resending request without lease");
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_SET_EOF}, 1,
+ cfile, NULL, NULL, NULL);
+ }
+ return rc;
}
int
smb2_set_file_info(struct inode *inode, const char *full_path,
FILE_BASIC_INFO *buf, const unsigned int xid)
{
+ struct cifs_open_parms oparms;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct tcon_link *tlink;
struct cifs_tcon *tcon;
struct cifsFileInfo *cfile;
+ struct kvec in_iov = { .iov_base = buf, .iov_len = sizeof(*buf), };
int rc;
if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
@@ -862,10 +1177,100 @@ smb2_set_file_info(struct inode *inode, const char *full_path,
tcon = tlink_tcon(tlink);
cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_WRITE_ATTRIBUTES, FILE_OPEN,
- 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, cfile,
- NULL, NULL, NULL, NULL);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_WRITE_ATTRIBUTES,
+ FILE_OPEN, 0, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_SET_INFO}, 1,
+ cfile, NULL, NULL, NULL);
cifs_put_tlink(tlink);
return rc;
}
+
+struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data,
+ struct super_block *sb,
+ const unsigned int xid,
+ struct cifs_tcon *tcon,
+ const char *full_path,
+ struct kvec *reparse_iov,
+ struct kvec *xattr_iov)
+{
+ struct cifs_open_parms oparms;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifsFileInfo *cfile;
+ struct inode *new = NULL;
+ struct kvec in_iov[2];
+ int cmds[2];
+ int rc;
+
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path,
+ SYNCHRONIZE | DELETE |
+ FILE_READ_ATTRIBUTES |
+ FILE_WRITE_ATTRIBUTES,
+ FILE_CREATE,
+ CREATE_NOT_DIR | OPEN_REPARSE_POINT,
+ ACL_NO_MODE);
+ if (xattr_iov)
+ oparms.ea_cctx = xattr_iov;
+
+ cmds[0] = SMB2_OP_SET_REPARSE;
+ in_iov[0] = *reparse_iov;
+ in_iov[1].iov_base = data;
+ in_iov[1].iov_len = sizeof(*data);
+
+ if (tcon->posix_extensions) {
+ cmds[1] = SMB2_OP_POSIX_QUERY_INFO;
+ cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, &oparms,
+ in_iov, cmds, 2, cfile, NULL, NULL, NULL);
+ if (!rc) {
+ rc = smb311_posix_get_inode_info(&new, full_path,
+ data, sb, xid);
+ }
+ } else {
+ cmds[1] = SMB2_OP_QUERY_INFO;
+ cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
+ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, &oparms,
+ in_iov, cmds, 2, cfile, NULL, NULL, NULL);
+ if (!rc) {
+ rc = cifs_get_inode_info(&new, full_path,
+ data, sb, xid, NULL);
+ }
+ }
+ return rc ? ERR_PTR(rc) : new;
+}
+
+int smb2_query_reparse_point(const unsigned int xid,
+ struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb,
+ const char *full_path,
+ u32 *tag, struct kvec *rsp,
+ int *rsp_buftype)
+{
+ struct cifs_open_parms oparms;
+ struct cifs_open_info_data data = {};
+ struct cifsFileInfo *cfile;
+ struct kvec in_iov = { .iov_base = &data, .iov_len = sizeof(data), };
+ int rc;
+
+ cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
+
+ cifs_get_readable_path(tcon, full_path, &cfile);
+ oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, FILE_READ_ATTRIBUTES,
+ FILE_OPEN, OPEN_REPARSE_POINT, ACL_NO_MODE);
+ rc = smb2_compound_op(xid, tcon, cifs_sb,
+ full_path, &oparms, &in_iov,
+ &(int){SMB2_OP_GET_REPARSE}, 1,
+ cfile, NULL, NULL, NULL);
+ if (rc)
+ goto out;
+
+ *tag = data.reparse.tag;
+ *rsp = data.reparse.io.iov;
+ *rsp_buftype = data.reparse.io.buftype;
+ memset(&data.reparse.io.iov, 0, sizeof(data.reparse.io.iov));
+ data.reparse.io.buftype = CIFS_NO_BUFFER;
+out:
+ cifs_free_open_info(&data);
+ return rc;
+}
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