#include "system/filesys.h"
#include "include/ntioctl.h"
#include "util_tdb.h"
+#include "lib/util_path.h"
struct shadow_copy2_config {
char *gmt_format;
struct shadow_copy2_private {
struct shadow_copy2_config *config;
struct shadow_copy2_snaplist_info *snaps;
+ char *shadow_cwd; /* Absolute $cwd path. */
+ /* Absolute connectpath - can vary depending on $cwd. */
+ char *shadow_connectpath;
+ /* malloc'ed realpath return. */
+ char *shadow_realpath;
};
static int shadow_copy2_get_shadow_copy_data(
return result;
}
+static char *make_path_absolute(TALLOC_CTX *mem_ctx,
+ struct shadow_copy2_private *priv,
+ const char *name)
+{
+ char *newpath = NULL;
+ char *abs_path = NULL;
+
+ if (name[0] != '/') {
+ newpath = talloc_asprintf(mem_ctx,
+ "%s/%s",
+ priv->shadow_cwd,
+ name);
+ if (newpath == NULL) {
+ return NULL;
+ }
+ name = newpath;
+ }
+ abs_path = canonicalize_absolute_path(mem_ctx, name);
+ TALLOC_FREE(newpath);
+ return abs_path;
+}
+
+/* Return a $cwd-relative path. */
+static bool make_relative_path(const char *cwd, char *abs_path)
+{
+ size_t cwd_len = strlen(cwd);
+ size_t abs_len = strlen(abs_path);
+
+ if (abs_len < cwd_len) {
+ return false;
+ }
+ if (memcmp(abs_path, cwd, cwd_len) != 0) {
+ return false;
+ }
+ if (abs_path[cwd_len] != '/' && abs_path[cwd_len] != '\0') {
+ return false;
+ }
+ if (abs_path[cwd_len] == '/') {
+ cwd_len++;
+ }
+ memmove(abs_path, &abs_path[cwd_len], abs_len + 1 - cwd_len);
+ return true;
+}
+
+static bool shadow_copy2_snapshot_to_gmt(vfs_handle_struct *handle,
+ const char *name,
+ char *gmt, size_t gmt_len);
+
+/*
+ * Check if an incoming filename is already a snapshot converted pathname.
+ *
+ * If so, it returns the pathname truncated at the snapshot point which
+ * will be used as the connectpath.
+ */
+
+static int check_for_converted_path(TALLOC_CTX *mem_ctx,
+ struct vfs_handle_struct *handle,
+ struct shadow_copy2_private *priv,
+ char *abs_path,
+ bool *ppath_already_converted,
+ char **pconnectpath)
+{
+ size_t snapdirlen = 0;
+ char *p = strstr_m(abs_path, priv->config->snapdir);
+ char *q = NULL;
+ char *connect_path = NULL;
+ char snapshot[GMT_NAME_LEN+1];
+
+ *ppath_already_converted = false;
+
+ if (p == NULL) {
+ /* Must at least contain shadow:snapdir. */
+ return 0;
+ }
+
+ if (priv->config->snapdir[0] == '/' &&
+ p != abs_path) {
+ /* Absolute shadow:snapdir must be at the start. */
+ return 0;
+ }
+
+ snapdirlen = strlen(priv->config->snapdir);
+ if (p[snapdirlen] != '/') {
+ /* shadow:snapdir must end as a separate component. */
+ return 0;
+ }
+
+ if (p > abs_path && p[-1] != '/') {
+ /* shadow:snapdir must start as a separate component. */
+ return 0;
+ }
+
+ p += snapdirlen;
+ p++; /* Move past the / */
+
+ /*
+ * Need to return up to the next path
+ * component after the time.
+ * This will be used as the connectpath.
+ */
+ q = strchr(p, '/');
+ if (q == NULL) {
+ /*
+ * No next path component.
+ * Use entire string.
+ */
+ connect_path = talloc_strdup(mem_ctx,
+ abs_path);
+ } else {
+ connect_path = talloc_strndup(mem_ctx,
+ abs_path,
+ q - abs_path);
+ }
+ if (connect_path == NULL) {
+ return ENOMEM;
+ }
+
+ /*
+ * Point p at the same offset in connect_path as
+ * it is in abs_path.
+ */
+
+ p = &connect_path[p - abs_path];
+
+ /*
+ * Now ensure there is a time string at p.
+ * The SMB-format @GMT-token string is returned
+ * in snapshot.
+ */
+
+ if (!shadow_copy2_snapshot_to_gmt(handle,
+ p,
+ snapshot,
+ sizeof(snapshot))) {
+ TALLOC_FREE(connect_path);
+ return 0;
+ }
+
+ if (pconnectpath != NULL) {
+ *pconnectpath = connect_path;
+ }
+
+ *ppath_already_converted = true;
+
+ DBG_DEBUG("path |%s| is already converted. "
+ "connect path = |%s|\n",
+ abs_path,
+ connect_path);
+
+ return 0;
+}
+
/**
- * Strip a snapshot component from a filename as
- * handed in via the smb layer.
- * Returns the parsed timestamp and the stripped filename.
+ * This function does two things.
+ *
+ * 1). Checks if an incoming filename is already a
+ * snapshot converted pathname.
+ * If so, it returns the pathname truncated
+ * at the snapshot point which will be used
+ * as the connectpath, and then does an early return.
+ *
+ * 2). Checks if an incoming filename contains an
+ * SMB-layer @GMT- style timestamp.
+ * If so, it strips the timestamp, and returns
+ * both the timestamp and the stripped path
+ * (making it cwd-relative).
*/
-static bool shadow_copy2_strip_snapshot(TALLOC_CTX *mem_ctx,
+
+static bool shadow_copy2_strip_snapshot_internal(TALLOC_CTX *mem_ctx,
struct vfs_handle_struct *handle,
- const char *name,
+ const char *orig_name,
time_t *ptimestamp,
- char **pstripped)
+ char **pstripped,
+ char **psnappath)
{
struct tm tm;
time_t timestamp = 0;
char *stripped = NULL;
size_t rest_len, dst_len;
struct shadow_copy2_private *priv;
- const char *snapdir;
- ssize_t snapdirlen;
ptrdiff_t len_before_gmt;
+ const char *name = orig_name;
+ char *abs_path = NULL;
+ bool ret = true;
+ bool already_converted = false;
+ int err = 0;
SMB_VFS_HANDLE_GET_DATA(handle, priv, struct shadow_copy2_private,
return false);
DEBUG(10, (__location__ ": enter path '%s'\n", name));
+ abs_path = make_path_absolute(mem_ctx, priv, name);
+ if (abs_path == NULL) {
+ ret = false;
+ goto out;
+ }
+ name = abs_path;
+
+ DEBUG(10, (__location__ ": abs path '%s'\n", name));
+
+ err = check_for_converted_path(mem_ctx,
+ handle,
+ priv,
+ abs_path,
+ &already_converted,
+ psnappath);
+ if (err != 0) {
+ /* error in conversion. */
+ ret = false;
+ goto out;
+ }
+
+ if (already_converted) {
+ goto out;
+ }
+
+ /*
+ * From here we're only looking to strip an
+ * SMB-layer @GMT- token.
+ */
+
p = strstr_m(name, "@GMT-");
if (p == NULL) {
DEBUG(11, ("@GMT not found\n"));
- goto no_snapshot;
+ goto out;
}
if ((p > name) && (p[-1] != '/')) {
/* the GMT-token does not start a path-component */
DEBUG(10, ("not at start, p=%p, name=%p, p[-1]=%d\n",
p, name, (int)p[-1]));
- goto no_snapshot;
+ goto out;
}
- /*
- * Figure out whether we got an already converted string. One
- * case where this happens is in a smb2 create call with the
- * mxac create blob set. We do the get_acl call on
- * fsp->fsp_name, which is already converted. We are converted
- * if we got a file name of the form ".snapshots/@GMT-",
- * i.e. ".snapshots/" precedes "p".
- */
-
- snapdir = lp_parm_const_string(SNUM(handle->conn), "shadow", "snapdir",
- ".snapshots");
- snapdirlen = strlen(snapdir);
len_before_gmt = p - name;
- if ((len_before_gmt >= (snapdirlen + 1)) && (p[-1] == '/')) {
- const char *parent_snapdir = p - (snapdirlen+1);
-
- DEBUG(10, ("parent_snapdir = %s\n", parent_snapdir));
-
- if (strncmp(parent_snapdir, snapdir, snapdirlen) == 0) {
- DEBUG(10, ("name=%s is already converted\n", name));
- goto no_snapshot;
- }
- }
q = strptime(p, GMT_FORMAT, &tm);
if (q == NULL) {
DEBUG(10, ("strptime failed\n"));
- goto no_snapshot;
+ goto out;
}
tm.tm_isdst = -1;
timestamp = timegm(&tm);
if (timestamp == (time_t)-1) {
DEBUG(10, ("timestamp==-1\n"));
- goto no_snapshot;
+ goto out;
}
if (q[0] == '\0') {
/*
stripped = talloc_strndup(mem_ctx, name,
len_before_gmt);
if (stripped == NULL) {
- return false;
+ ret = false;
+ goto out;
+ }
+ if (orig_name[0] != '/') {
+ if (make_relative_path(priv->shadow_cwd,
+ stripped) == false) {
+ DEBUG(10, (__location__ ": path '%s' "
+ "doesn't start with cwd '%s\n",
+ stripped, priv->shadow_cwd));
+ ret = false;
+ errno = ENOENT;
+ goto out;
+ }
}
*pstripped = stripped;
}
*ptimestamp = timestamp;
- return true;
+ goto out;
}
if (q[0] != '/') {
/*
* component continues after the gmt-token.
*/
DEBUG(10, ("q[0] = %d\n", (int)q[0]));
- goto no_snapshot;
+ goto out;
}
q += 1;
rest_len = strlen(q);
dst_len = len_before_gmt + rest_len;
- if (priv->config->snapdirseverywhere) {
- char *insert;
- bool have_insert;
- insert = shadow_copy2_insert_string(talloc_tos(), handle,
- timestamp);
- if (insert == NULL) {
- errno = ENOMEM;
- return false;
- }
-
- DEBUG(10, (__location__ ": snapdirseverywhere mode.\n"
- "path '%s'.\n"
- "insert string '%s'\n", name, insert));
-
- have_insert = (strstr(name, insert+1) != NULL);
- DEBUG(10, ("have_insert=%d, name=%s, insert+1=%s\n",
- (int)have_insert, name, insert+1));
- if (have_insert) {
- DEBUG(10, (__location__ ": insert string '%s' found in "
- "path '%s' found in snapdirseverywhere mode "
- "==> already converted\n", insert, name));
- TALLOC_FREE(insert);
- goto no_snapshot;
- }
- TALLOC_FREE(insert);
- } else {
- char *snapshot_path;
- char *s;
-
- snapshot_path = shadow_copy2_snapshot_path(talloc_tos(),
- handle,
- timestamp);
- if (snapshot_path == NULL) {
- errno = ENOMEM;
- return false;
- }
-
- DEBUG(10, (__location__ " path: '%s'.\n"
- "snapshot path: '%s'\n", name, snapshot_path));
-
- s = strstr(name, snapshot_path);
- if (s == name) {
- /*
- * this starts with "snapshot_basepath/GMT-Token"
- * so it is already a converted absolute
- * path. Don't process further.
- */
- DEBUG(10, (__location__ ": path '%s' starts with "
- "snapshot path '%s' (not in "
- "snapdirseverywhere mode) ==> "
- "already converted\n", name, snapshot_path));
- talloc_free(snapshot_path);
- goto no_snapshot;
- }
- talloc_free(snapshot_path);
- }
-
if (pstripped != NULL) {
stripped = talloc_array(mem_ctx, char, dst_len+1);
if (stripped == NULL) {
- errno = ENOMEM;
- return false;
+ ret = false;
+ goto out;
}
if (p > name) {
memcpy(stripped, name, len_before_gmt);
memcpy(stripped + len_before_gmt, q, rest_len);
}
stripped[dst_len] = '\0';
+ if (orig_name[0] != '/') {
+ if (make_relative_path(priv->shadow_cwd,
+ stripped) == false) {
+ DEBUG(10, (__location__ ": path '%s' "
+ "doesn't start with cwd '%s\n",
+ stripped, priv->shadow_cwd));
+ ret = false;
+ errno = ENOENT;
+ goto out;
+ }
+ }
*pstripped = stripped;
}
*ptimestamp = timestamp;
- return true;
-no_snapshot:
- *ptimestamp = 0;
- return true;
+ ret = true;
+
+ out:
+ TALLOC_FREE(abs_path);
+ return ret;
+}
+
+static bool shadow_copy2_strip_snapshot(TALLOC_CTX *mem_ctx,
+ struct vfs_handle_struct *handle,
+ const char *orig_name,
+ time_t *ptimestamp,
+ char **pstripped)
+{
+ return shadow_copy2_strip_snapshot_internal(mem_ctx,
+ handle,
+ orig_name,
+ ptimestamp,
+ pstripped,
+ NULL);
}
static char *shadow_copy2_find_mount_point(TALLOC_CTX *mem_ctx,
char *insert = NULL;
char *converted = NULL;
size_t insertlen, connectlen = 0;
- int i, saved_errno;
+ int saved_errno = 0;
+ int i;
size_t min_offset;
struct shadow_copy2_config *config;
struct shadow_copy2_private *priv;
errno = ENOENT;
}
fail:
- saved_errno = errno;
+ if (result == NULL) {
+ saved_errno = errno;
+ }
TALLOC_FREE(converted);
TALLOC_FREE(insert);
TALLOC_FREE(slashes);
TALLOC_FREE(path);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return result;
}
time_t timestamp = 0;
char *stripped = NULL;
DIR *ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
struct smb_filename *conv_smb_fname = NULL;
return NULL;
}
ret = SMB_VFS_NEXT_OPENDIR(handle, conv_smb_fname, mask, attr);
- saved_errno = errno;
+ if (ret == NULL) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
TALLOC_FREE(conv_smb_fname);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp_src = 0;
time_t timestamp_dst = 0;
+ char *snappath_src = NULL;
+ char *snappath_dst = NULL;
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle,
smb_fname_src->base_name,
- ×tamp_src, NULL)) {
+ ×tamp_src, NULL, &snappath_src)) {
return -1;
}
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle,
smb_fname_dst->base_name,
- ×tamp_dst, NULL)) {
+ ×tamp_dst, NULL, &snappath_dst)) {
return -1;
}
if (timestamp_src != 0) {
errno = EROFS;
return -1;
}
+ /*
+ * Don't allow rename on already converted paths.
+ */
+ if (snappath_src != NULL) {
+ errno = EXDEV;
+ return -1;
+ }
+ if (snappath_dst != NULL) {
+ errno = EROFS;
+ return -1;
+ }
return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
}
{
time_t timestamp_old = 0;
time_t timestamp_new = 0;
+ char *snappath_old = NULL;
+ char *snappath_new = NULL;
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, oldname,
- ×tamp_old, NULL)) {
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle, oldname,
+ ×tamp_old, NULL, &snappath_old)) {
return -1;
}
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, newname,
- ×tamp_new, NULL)) {
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle, newname,
+ ×tamp_new, NULL, &snappath_new)) {
return -1;
}
if ((timestamp_old != 0) || (timestamp_new != 0)) {
errno = EROFS;
return -1;
}
+ /*
+ * Don't allow symlinks on already converted paths.
+ */
+ if ((snappath_old != NULL) || (snappath_new != NULL)) {
+ errno = EROFS;
+ return -1;
+ }
return SMB_VFS_NEXT_SYMLINK(handle, oldname, newname);
}
{
time_t timestamp_old = 0;
time_t timestamp_new = 0;
+ char *snappath_old = NULL;
+ char *snappath_new = NULL;
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, oldname,
- ×tamp_old, NULL)) {
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle, oldname,
+ ×tamp_old, NULL, &snappath_old)) {
return -1;
}
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, newname,
- ×tamp_new, NULL)) {
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle, newname,
+ ×tamp_new, NULL, &snappath_new)) {
return -1;
}
if ((timestamp_old != 0) || (timestamp_new != 0)) {
errno = EROFS;
return -1;
}
+ /*
+ * Don't allow links on already converted paths.
+ */
+ if ((snappath_old != NULL) || (snappath_new != NULL)) {
+ errno = EROFS;
+ return -1;
+ }
return SMB_VFS_NEXT_LINK(handle, oldname, newname);
}
time_t timestamp = 0;
char *stripped = NULL;
char *tmp;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
smb_fname->base_name,
}
ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(smb_fname->base_name);
smb_fname->base_name = tmp;
if (ret == 0) {
convert_sbuf(handle, smb_fname->base_name, &smb_fname->st);
}
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
char *tmp;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
smb_fname->base_name,
}
ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(smb_fname->base_name);
smb_fname->base_name = tmp;
if (ret == 0) {
convert_sbuf(handle, smb_fname->base_name, &smb_fname->st);
}
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
char *tmp;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
smb_fname->base_name,
}
ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(smb_fname->base_name);
smb_fname->base_name = tmp;
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
struct smb_filename *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
return -1;
}
ret = SMB_VFS_NEXT_UNLINK(handle, conv);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv = NULL;
struct smb_filename *conv_smb_fname;
}
ret = SMB_VFS_NEXT_CHMOD(handle, conv_smb_fname, mode);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
TALLOC_FREE(conv_smb_fname);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv = NULL;
struct smb_filename *conv_smb_fname = NULL;
return -1;
}
ret = SMB_VFS_NEXT_CHOWN(handle, conv_smb_fname, uid, gid);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
TALLOC_FREE(conv_smb_fname);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
+static void store_cwd_data(vfs_handle_struct *handle,
+ const char *connectpath)
+{
+ struct shadow_copy2_private *priv = NULL;
+ char *cwd = NULL;
+
+ SMB_VFS_HANDLE_GET_DATA(handle, priv, struct shadow_copy2_private,
+ return);
+
+ TALLOC_FREE(priv->shadow_cwd);
+ cwd = SMB_VFS_NEXT_GETWD(handle);
+ if (cwd == NULL) {
+ smb_panic("getwd failed\n");
+ }
+ DBG_DEBUG("shadow cwd = %s\n", cwd);
+ priv->shadow_cwd = talloc_strdup(priv, cwd);
+ SAFE_FREE(cwd);
+ if (priv->shadow_cwd == NULL) {
+ smb_panic("talloc failed\n");
+ }
+ TALLOC_FREE(priv->shadow_connectpath);
+ if (connectpath) {
+ DBG_DEBUG("shadow conectpath = %s\n", connectpath);
+ priv->shadow_connectpath = talloc_strdup(priv, connectpath);
+ if (priv->shadow_connectpath == NULL) {
+ smb_panic("talloc failed\n");
+ }
+ }
+}
+
static int shadow_copy2_chdir(vfs_handle_struct *handle,
const char *fname)
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
- char *conv;
+ char *snappath = NULL;
+ int ret = -1;
+ int saved_errno = 0;
+ char *conv = NULL;
+ size_t rootpath_len = 0;
- if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
- ×tamp, &stripped)) {
+ if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle, fname,
+ ×tamp, &stripped, &snappath)) {
return -1;
}
- if (timestamp == 0) {
- return SMB_VFS_NEXT_CHDIR(handle, fname);
+ if (stripped != NULL) {
+ conv = shadow_copy2_do_convert(talloc_tos(),
+ handle,
+ stripped,
+ timestamp,
+ &rootpath_len);
+ TALLOC_FREE(stripped);
+ if (conv == NULL) {
+ return -1;
+ }
+ fname = conv;
}
- conv = shadow_copy2_convert(talloc_tos(), handle, stripped, timestamp);
- TALLOC_FREE(stripped);
- if (conv == NULL) {
- return -1;
+
+ ret = SMB_VFS_NEXT_CHDIR(handle, fname);
+ if (ret == -1) {
+ saved_errno = errno;
+ }
+
+ if (ret == 0) {
+ if (conv != NULL && rootpath_len != 0) {
+ conv[rootpath_len] = '\0';
+ } else if (snappath != 0) {
+ TALLOC_FREE(conv);
+ conv = snappath;
+ }
+ store_cwd_data(handle, conv);
}
- ret = SMB_VFS_NEXT_CHDIR(handle, conv);
- saved_errno = errno;
+
+ TALLOC_FREE(stripped);
TALLOC_FREE(conv);
- errno = saved_errno;
+
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
struct smb_filename *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
return -1;
}
ret = SMB_VFS_NEXT_NTIMES(handle, conv, ft);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_READLINK(handle, conv, buf, bufsiz);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_MKNOD(handle, conv, mode, dev);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
char *stripped = NULL;
char *tmp = NULL;
char *result = NULL;
- int saved_errno;
+ int saved_errno = 0;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
×tamp, &stripped)) {
result = SMB_VFS_NEXT_REALPATH(handle, tmp);
done:
- saved_errno = errno;
+ if (result == NULL) {
+ saved_errno = errno;
+ }
TALLOC_FREE(tmp);
TALLOC_FREE(stripped);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return result;
}
}
/* Extract the prefix */
tmp = strstr(tmpstr, priv->config->delimiter);
+ if (tmp == NULL) {
+ goto done;
+ }
*tmp = '\0';
/* Parse regex */
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv;
struct smb_filename *conv_smb_fname = NULL;
return -1;
}
ret = SMB_VFS_NEXT_MKDIR(handle, conv_smb_fname, mode);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
TALLOC_FREE(conv_smb_fname);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv;
struct smb_filename *conv_smb_fname = NULL;
return -1;
}
ret = SMB_VFS_NEXT_RMDIR(handle, conv_smb_fname);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv_smb_fname);
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_CHFLAGS(handle, conv, flags);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
ssize_t ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_GETXATTR(handle, conv, aname, value, size);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
ssize_t ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_LISTXATTR(handle, conv, list, size);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
{
time_t timestamp = 0;
char *stripped = NULL;
- int ret, saved_errno;
+ int saved_errno = 0;
+ int ret;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_REMOVEXATTR(handle, conv, aname);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
ssize_t ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
return -1;
}
ret = SMB_VFS_NEXT_SETXATTR(handle, conv, aname, value, size, flags);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
ssize_t ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv = NULL;
struct smb_filename *conv_smb_fname = NULL;
return -1;
}
ret = SMB_VFS_NEXT_CHMOD_ACL(handle, conv_smb_fname, mode);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
TALLOC_FREE(conv_smb_fname);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
ssize_t ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
DEBUG(10, ("shadow_copy2_get_real_filename called for path=[%s], "
ret = SMB_VFS_NEXT_GET_REAL_FILENAME(handle, conv, name,
mem_ctx, found_name);
DEBUG(10, ("NEXT_REAL_FILE_NAME returned %d\n", (int)ret));
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
char *tmp = NULL;
char *result = NULL;
char *parent_dir = NULL;
- int saved_errno;
+ int saved_errno = 0;
size_t rootpath_len = 0;
+ struct shadow_copy2_private *priv = NULL;
+
+ SMB_VFS_HANDLE_GET_DATA(handle, priv, struct shadow_copy2_private,
+ return NULL);
DBG_DEBUG("Calc connect path for [%s]\n", fname);
+ if (priv->shadow_connectpath != NULL) {
+ DBG_DEBUG("cached connect path is [%s]\n",
+ priv->shadow_connectpath);
+ return priv->shadow_connectpath;
+ }
+
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, fname,
×tamp, &stripped)) {
goto done;
goto done;
}
+ /*
+ * SMB_VFS_NEXT_REALPATH returns a malloc'ed string.
+ * Don't leak memory.
+ */
+ SAFE_FREE(priv->shadow_realpath);
+ priv->shadow_realpath = result;
+
DBG_DEBUG("connect path is [%s]\n", result);
done:
- saved_errno = errno;
+ if (result == NULL) {
+ saved_errno = errno;
+ }
TALLOC_FREE(tmp);
TALLOC_FREE(stripped);
TALLOC_FREE(parent_dir);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return result;
}
time_t timestamp = 0;
char *stripped = NULL;
ssize_t ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, path,
ret = SMB_VFS_NEXT_DISK_FREE(handle, conv, bsize, dfree, dsize);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
time_t timestamp = 0;
char *stripped = NULL;
int ret;
- int saved_errno;
+ int saved_errno = 0;
char *conv;
if (!shadow_copy2_strip_snapshot(talloc_tos(), handle, path, ×tamp,
ret = SMB_VFS_NEXT_GET_QUOTA(handle, conv, qtype, id, dq);
- saved_errno = errno;
+ if (ret == -1) {
+ saved_errno = errno;
+ }
TALLOC_FREE(conv);
- errno = saved_errno;
+ if (saved_errno != 0) {
+ errno = saved_errno;
+ }
return ret;
}
+static int shadow_copy2_private_destructor(struct shadow_copy2_private *priv)
+{
+ SAFE_FREE(priv->shadow_realpath);
+ return 0;
+}
+
static int shadow_copy2_connect(struct vfs_handle_struct *handle,
const char *service, const char *user)
{
return -1;
}
+ talloc_set_destructor(priv, shadow_copy2_private_destructor);
+
priv->snaps = talloc_zero(priv, struct shadow_copy2_snaplist_info);
if (priv->snaps == NULL) {
DBG_ERR("talloc_zero() failed\n");
return -1;
}
+ /* config->gmt_format must not contain a path separator. */
+ if (strchr(config->gmt_format, '/') != NULL) {
+ DEBUG(0, ("shadow:format %s must not contain a /"
+ "character. Unable to initialize module.\n",
+ config->gmt_format));
+ errno = EINVAL;
+ return -1;
+ }
+
config->use_sscanf = lp_parm_bool(SNUM(handle->conn),
"shadow", "sscanf", false);
git.samba.org / amitay / samba.git / blobdiff