diff options
Diffstat (limited to 'source4/ntvfs/posix/pvfs_resolve.c')
| -rw-r--r-- | source4/ntvfs/posix/pvfs_resolve.c | 93 |
1 files changed, 90 insertions, 3 deletions
diff --git a/source4/ntvfs/posix/pvfs_resolve.c b/source4/ntvfs/posix/pvfs_resolve.c index 2bfc47beff..325bc74f8f 100644 --- a/source4/ntvfs/posix/pvfs_resolve.c +++ b/source4/ntvfs/posix/pvfs_resolve.c @@ -265,8 +265,15 @@ static NTSTATUS pvfs_unix_path(struct pvfs_state *pvfs, const char *cifs_name, of a name */ return NT_STATUS_ILLEGAL_CHARACTER; } - if (p > p_start && p[1] == 0) { - *p = 0; + if (p > p_start && (p[1] == '\\' || p[1] == '\0')) { + /* see if it is definately a "\\" or + * a trailing "\". If it is then fail here, + * and let the next layer up try again after + * pvfs_reduce_name() if it wants to. This is + * much more efficient on average than always + * scanning for these separately + */ + return NT_STATUS_OBJECT_PATH_SYNTAX_BAD; } else { *p = '/'; } @@ -399,7 +406,7 @@ static NTSTATUS pvfs_reduce_name(TALLOC_CTX *mem_ctx, if (ISDOTDOT(components[i])) { if (i < 1) return NT_STATUS_OBJECT_PATH_SYNTAX_BAD; memmove(&components[i-1], &components[i+1], - sizeof(char *)*(num_components-(i+1))); + sizeof(char *)*(num_components-i)); i -= 2; continue; } @@ -616,6 +623,86 @@ NTSTATUS pvfs_resolve_name_fd(struct pvfs_state *pvfs, int fd, return pvfs_fill_dos_info(pvfs, name, fd); } +/* + fill in the pvfs_filename info for an open file, given the current + info for a (possibly) non-open file. This is used by places that need + to update the pvfs_filename stat information, and the path + after a possible rename on a different handle. +*/ +NTSTATUS pvfs_resolve_name_handle(struct pvfs_state *pvfs, + struct pvfs_file_handle *h) +{ + NTSTATUS status; + + if (h->have_opendb_entry) { + struct odb_lock *lck; + const char *name = NULL; + + lck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key); + if (lck == NULL) { + DEBUG(0,("%s: failed to lock file '%s' in opendb\n", + __FUNCTION__, h->name->full_name)); + /* we were supposed to do a blocking lock, so something + is badly wrong! */ + return NT_STATUS_INTERNAL_DB_CORRUPTION; + } + + status = odb_get_path(lck, &name); + if (NT_STATUS_IS_OK(status)) { + /* + * This relies an the fact that + * renames of open files are only + * allowed by setpathinfo() and setfileinfo() + * and there're only renames within the same + * directory supported + */ + if (strcmp(h->name->full_name, name) != 0) { + const char *orig_dir; + const char *new_file; + const char *new_orig; + char *delim; + + delim = strrchr(name, '/'); + if (!delim) { + talloc_free(lck); + return NT_STATUS_INTERNAL_ERROR; + } + + new_file = delim + 1; + delim = strrchr(h->name->original_name, '\\'); + if (delim) { + delim[0] = '\0'; + orig_dir = h->name->original_name; + new_orig = talloc_asprintf(h->name, "%s\\%s", + orig_dir, new_file); + if (!new_orig) { + talloc_free(lck); + return NT_STATUS_NO_MEMORY; + } + } else { + new_orig = talloc_strdup(h->name, new_file); + if (!new_orig) { + talloc_free(lck); + return NT_STATUS_NO_MEMORY; + } + } + + talloc_free(h->name->original_name); + talloc_free(h->name->full_name); + h->name->full_name = talloc_steal(h->name, name); + h->name->original_name = new_orig; + } + } + + talloc_free(lck); + } + + status = pvfs_resolve_name_fd(pvfs, h->fd, h->name); + NT_STATUS_NOT_OK_RETURN(status); + + return NT_STATUS_OK; +} + /* resolve the parent of a given name |