/* * $Id: media_harmony.c,v 1.1 2007/11/06 10:07:22 stuart_hc Exp $ * * Samba VFS module supporting multiple AVID clients sharing media. * * Copyright (C) 2005 Philip de Nier * Copyright (C) 2012 Andrew Klaassen * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. */ /* * Media Harmony is a Samba VFS module that allows multiple AVID * clients to share media. Each client sees their own copy of the * AVID msmMMOB.mdb and msmFMID.pmr files and Creating directories. * * Add this module to the vfs objects option in your Samba share * configuration. * eg. * * [avid_win] * path = /video * vfs objects = media_harmony * ... * * It is recommended that you separate out Samba shares for Mac * and Windows clients, and add the following options to the shares * for Windows clients (NOTE: replace @ with *): * * veto files = /.DS_Store/._@/.Trash@/.Spotlight@/.hidden/.hotfiles@/.vol/ * delete veto files = yes * * This prevents hidden files from Mac clients interfering with Windows * clients. If you find any more problem hidden files then add them to * the list. * * * Andrew Klaassen, 2012-03-14 * To prevent Avid clients from interrupting each other (via Avid's habit * of launching a database refresh whenever it notices an mtime update * on media directories, i.e. whenever one editor adds new material to a * shared share), I've added code that causes stat information for anything * directly under "Avid MediaFile/MXF" to be taken from * dirname_clientaddr_clientuser if it exists. These files ~aren't~ * hidden, unlike the client-suffixed database files. * * For example, stat information for * Avid MediaFiles/MXF/1 * will come from * Avid MediaFiles/MXF/1_192.168.1.10_dave * for dave working on 192.168.1.10, but will come from * Avid MediaFile/MXF/1_192.168.1.11_susan * for susan working on 192.168.1.11. If those alternate * directories don't exist, the user will get the actual directory's stat * info. When an editor wants to force a database refresh, they update * the mtime on "their" file. This will cause Avid * on that client to see an updated mtime for "Avid MediaFiles/MXF/1", * which will trigger an Avid database refresh just for that editor. * * * Notes: * - This module is designed to work with AVID editing applications that * look in the Avid MediaFiles or OMFI MediaFiles directory for media. * It is not designed to work as expected in all circumstances for * general use. For example: it is possibly to open client specific * files such as msmMMOB.mdb_192.168.1.10_userx even though is doesn't * show up in a directory listing. * */ #include "includes.h" #include "system/filesys.h" #include "smbd/smbd.h" #include "../smbd/globals.h" #include "auth.h" #include "../lib/tsocket/tsocket.h" #define MH_INFO_DEBUG 10 #define MH_ERR_DEBUG 0 static const char* MH_MODULE_NAME = "media_harmony"; static const char* MDB_FILENAME = "msmMMOB.mdb"; static const size_t MDB_FILENAME_LEN = 11; static const char* PMR_FILENAME = "msmFMID.pmr"; static const size_t PMR_FILENAME_LEN = 11; static const char* CREATING_DIRNAME = "Creating"; static const size_t CREATING_DIRNAME_LEN = 8; static const char* AVID_MEDIAFILES_DIRNAME = "Avid MediaFiles"; static const size_t AVID_MEDIAFILES_DIRNAME_LEN = 15; static const char* OMFI_MEDIAFILES_DIRNAME = "OMFI MediaFiles"; static const size_t OMFI_MEDIAFILES_DIRNAME_LEN = 15; static const char* APPLE_DOUBLE_PREFIX = "._"; static const size_t APPLE_DOUBLE_PREFIX_LEN = 2; static const char* AVID_MXF_DIRNAME = "Avid MediaFiles/MXF"; static const size_t AVID_MXF_DIRNAME_LEN = 19; static int vfs_mh_debug_level = DBGC_VFS; /* supplements the directory list stream */ typedef struct mh_dirinfo_struct { DIR* dirstream; char *dirpath; char *clientPath; bool isInMediaFiles; char *clientMDBFilename; char *clientPMRFilename; char *clientCreatingDirname; } mh_dirinfo_struct; /* Add "__" suffix to path or filename. * * Success: return 0 * Failure: set errno, path NULL, return -1 */ static int alloc_append_client_suffix(vfs_handle_struct *handle, char **path) { DEBUG(MH_INFO_DEBUG, ("Entering with *path '%s'\n", *path)); int status = 0; char *raddr = NULL; raddr = tsocket_address_inet_addr_string( handle->conn->sconn->remote_address, talloc_tos()); if (raddr == NULL) { errno = ENOMEM; status = -1; goto err; } /* talloc_asprintf_append uses talloc_realloc, which * frees original 'path' memory so we don't have to. */ *path = talloc_asprintf_append(*path, "_%s_%s", raddr, handle->conn->session_info->unix_info->sanitized_username); if (*path == NULL) { DEBUG(MH_ERR_DEBUG, ("alloc_append_client_suffix " "out of memory\n")); errno = ENOMEM; status = -1; goto err; } DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path)); err: TALLOC_FREE(raddr); return status; } /* Returns True if the file or directory begins with the appledouble * prefix. */ static bool is_apple_double(const char* fname) { DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname)); bool ret = False; if (strncmp(APPLE_DOUBLE_PREFIX, fname, APPLE_DOUBLE_PREFIX_LEN) == 0) { ret = True; } DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n", ret == True ? "True" : "False")); return ret; } static bool starts_with_media_dir(const char* media_dirname, size_t media_dirname_len, const char* path) { DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' " "path '%s'\n", media_dirname, path)); bool ret = False; char* path_start; /* Sometimes Samba gives us "./OMFI MediaFiles". */ if (strncmp(path, "./", 2) == 0) { path_start = &path[2]; } else { path_start = path; } if (strncmp(media_dirname, path_start, media_dirname_len) == 0 && ( path_start[media_dirname_len] == '\0' || path_start[media_dirname_len] == '/' ) ) { ret = True; } DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n", ret == True ? "True" : "False")); return ret; } /* * Returns True if the file or directory referenced by the path is below * the AVID_MEDIAFILES_DIRNAME or OMFI_MEDIAFILES_DIRNAME directory * The AVID_MEDIAFILES_DIRNAME and OMFI_MEDIAFILES_DIRNAME are assumed to * be in the root directory, which is generally a safe assumption * in the fixed-path world of Avid. */ static bool is_in_media_files(const char* path) { DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path)); bool ret = False; if ( starts_with_media_dir(AVID_MEDIAFILES_DIRNAME, AVID_MEDIAFILES_DIRNAME_LEN, path) || starts_with_media_dir(OMFI_MEDIAFILES_DIRNAME, OMFI_MEDIAFILES_DIRNAME_LEN, path) ) { ret = True; } DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n", ret == True ? "True" : "False")); return ret; } /* * Returns depth of path under media directory. Deals with the * occasional ..../. and ..../.. paths that get passed to stat. * * Assumes is_in_media_files has already been called and has returned * true for the path; if it hasn't, this function will likely crash * and burn. * * Not foolproof; something like "Avid MediaFiles/MXF/../foo/1" * would fool it. Haven't seen paths like that getting to the * stat function yet, so ignoring that possibility for now. */ static int depth_from_media_dir(const char* media_dirname, size_t media_dirname_len, const char* path) { DEBUG(MH_INFO_DEBUG, ("Entering with media_dirname '%s' " "path '%s'\n", media_dirname, path)); int transition_count = 0; char* path_start; char* pathPtr; /* Sometimes Samba gives us "./OMFI MediaFiles". */ if (strncmp(path, "./", 2) == 0) { path_start = &path[2]; } else { path_start = path; } if (path_start[media_dirname_len] == '\0') { goto out; } pathPtr = &path_start[media_dirname_len + 1]; while(1) { if (*pathPtr == '\0' || *pathPtr == '/') { if ( *(pathPtr - 1) == '.' && *(pathPtr - 2) == '.' && *(pathPtr - 3) == '/' ) { transition_count--; } else if ( ! ( *(pathPtr - 1) == '/' || ( *(pathPtr - 1) == '.' && *(pathPtr - 2) == '/' ) ) ) { transition_count++; } } if (*pathPtr == '\0') { break; } pathPtr++; } DEBUG(MH_INFO_DEBUG, ("Leaving with transition_count '%i'\n", transition_count)); out: return transition_count; } /* Identifies MDB and PMR files at end of path. */ static bool is_avid_database( char *path, size_t path_len, const char *avid_db_filename, const size_t avid_db_filename_len) { DEBUG(MH_INFO_DEBUG, ("Entering with path '%s', " "avid_db_filename '%s', " "path_len '%i', " "avid_db_filename_len '%i'\n", path, avid_db_filename, path_len, avid_db_filename_len)); bool ret = False; if ( path_len > avid_db_filename_len && strcmp(&path[path_len - avid_db_filename_len], avid_db_filename) == 0 && ( path[path_len - avid_db_filename_len - 1] == '/' || path_len > avid_db_filename_len + APPLE_DOUBLE_PREFIX_LEN && path[path_len - avid_db_filename_len - APPLE_DOUBLE_PREFIX_LEN - 1] == '/' && is_apple_double(&path[path_len - avid_db_filename_len - APPLE_DOUBLE_PREFIX_LEN]) ) ) { ret = True; } DEBUG(MH_INFO_DEBUG, ("Leaving with ret '%s'\n", ret == True ? "True" : "False")); return ret; } /* Add client suffix to paths to MDB_FILENAME, PMR_FILENAME and * CREATING_SUBDIRNAME. * * Caller must free newPath. * * Success: return 0 * Failure: set errno, newPath NULL, return -1 */ static int alloc_get_client_path(vfs_handle_struct *handle, TALLOC_CTX *ctx, const char *path, char **newPath) { DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path)); /* replace /CREATING_DIRNAME/ or /._CREATING_DIRNAME/ * directory in path - potentially in middle of path * - with suffixed name. */ int status = 0; char* pathPtr; *newPath = talloc_strdup(ctx, path); if (*newPath == NULL) { DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path ENOMEM #1\n")); errno = ENOMEM; status = -1; goto out; } DEBUG(MH_INFO_DEBUG, ("newPath #1 %s\n", *newPath)); if ( (pathPtr = strstr(path, CREATING_DIRNAME)) != NULL && ( *(pathPtr + CREATING_DIRNAME_LEN) == '\0' || *(pathPtr + CREATING_DIRNAME_LEN) == '/' ) && ( pathPtr - path > 0 && *(pathPtr - 1) == '/' || pathPtr - path > APPLE_DOUBLE_PREFIX_LEN && *(pathPtr - APPLE_DOUBLE_PREFIX_LEN - 1) == '/' && is_apple_double(pathPtr - APPLE_DOUBLE_PREFIX_LEN) ) ) { /* Insert client suffix into path. */ (*newPath)[pathPtr - path + CREATING_DIRNAME_LEN] = '\0'; DEBUG(MH_INFO_DEBUG, ("newPath #2 %s\n", *newPath)); if (status = alloc_append_client_suffix(handle, newPath)) { goto out; } DEBUG(MH_INFO_DEBUG, ("newPath #3 %s\n", *newPath)); *newPath = talloc_strdup_append(*newPath, pathPtr + CREATING_DIRNAME_LEN); if (*newPath == NULL) { DEBUG(MH_ERR_DEBUG, ("alloc_get_client_path " "ENOMEM #2\n")); errno = ENOMEM; status = -1; goto out; } DEBUG(MH_INFO_DEBUG, ("newPath #4 %s\n", *newPath)); } /* replace /MDB_FILENAME or /PMR_FILENAME or /._MDB_FILENAME * or /._PMR_FILENAME at newPath end with suffixed name. */ size_t intermPathLen = strlen(*newPath); if ( is_avid_database(*newPath, intermPathLen, MDB_FILENAME, MDB_FILENAME_LEN) || is_avid_database(*newPath, intermPathLen, PMR_FILENAME, PMR_FILENAME_LEN) ) { DEBUG(MH_INFO_DEBUG, ("newPath #5 %s\n", *newPath)); if (status = alloc_append_client_suffix(handle, newPath)) { goto out; } DEBUG(MH_INFO_DEBUG, ("newPath #6 %s\n", *newPath)); } out: /* newPath must be freed in caller. */ DEBUG(MH_INFO_DEBUG, ("Leaving with *newPath '%s'\n", *newPath)); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int alloc_get_client_smb_fname(struct vfs_handle_struct *handle, TALLOC_CTX *ctx, const struct smb_filename *smb_fname, struct smb_filename **clientFname) { DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n", smb_fname->base_name)); int status = 0; NTSTATUS copystatus; copystatus = copy_smb_filename(ctx, smb_fname, clientFname); if (!NT_STATUS_IS_OK(copystatus)) { DEBUG(MH_ERR_DEBUG, ("alloc_get_client_smb_fname " "NTERR\n")); errno = map_errno_from_nt_status(copystatus); status = -1; goto err; } if (status = alloc_get_client_path(handle, ctx, smb_fname->base_name, &(*clientFname)->base_name)) { goto err; } DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name " "'%s'\n", (*clientFname)->base_name)); err: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int alloc_set_client_dirinfo_path(struct vfs_handle_struct *handle, TALLOC_CTX *ctx, char **path, const char *avid_db_filename) { DEBUG(MH_INFO_DEBUG, ("Entering with avid_db_filename '%s'\n", avid_db_filename)); int status = 0; if ((*path = talloc_strdup(ctx, avid_db_filename)) == NULL) { DEBUG(MH_ERR_DEBUG, ("alloc_set_client_dirinfo_path " "ENOMEM\n")); errno = ENOMEM; status = -1; goto err; } if (status = alloc_append_client_suffix(handle, path)) { goto err; } DEBUG(MH_INFO_DEBUG, ("Leaving with *path '%s'\n", *path)); err: return status; } /* * Replace mtime on clientFname with mtime from client-suffixed * equivalent, if it exists. * * Success: return 0 * Failure: set errno, return -1 */ static int set_fake_mtime(vfs_handle_struct *handle, TALLOC_CTX *ctx, struct smb_filename **clientFname, int (*statFn)(const char *, SMB_STRUCT_STAT *, bool)) { DEBUG(MH_INFO_DEBUG, ("Entering with (*clientFname)->base_name " "'%s', (*clientFname)->st.st_ex_mtime %s", (*clientFname)->base_name, ctime(&((*clientFname)->st.st_ex_mtime.tv_sec)))); int status = 0; if ( depth_from_media_dir(AVID_MXF_DIRNAME, AVID_MXF_DIRNAME_LEN, (*clientFname)->base_name) != 1 && depth_from_media_dir(OMFI_MEDIAFILES_DIRNAME, OMFI_MEDIAFILES_DIRNAME_LEN, (*clientFname)->base_name) != 0 ) { goto out; } char *statPath; SMB_STRUCT_STAT fakeStat; int copy_len = strlen((*clientFname)->base_name); /* Hack to deal with occasional "Avid MediaFiles/MXF/1/." paths. * We know we're under a media dir, so paths are at least 2 chars * long. */ if ((*clientFname)->base_name[copy_len - 1] == '.' && (*clientFname)->base_name[copy_len - 2] == '/') { copy_len -= 2; } if ((statPath = talloc_strndup(ctx, (*clientFname)->base_name, copy_len)) == NULL) { errno = ENOMEM; status = -1; goto err; } if (status = alloc_append_client_suffix(handle, &statPath)) { goto err; } DEBUG(MH_INFO_DEBUG, ("Fake stat'ing '%s'\n", statPath)); if (statFn(statPath, &fakeStat, lp_fake_dir_create_times(SNUM(handle->conn)))) { /* This can fail for legitimate reasons - i.e. the * fakeStat directory doesn't exist, which is okay * - so we don't set status. But if it does fail, * we need to skip over the mtime assignment. */ goto err; } DEBUG(MH_INFO_DEBUG, ("Setting fake mtime from '%s'\n", statPath)); (*clientFname)->st.st_ex_mtime = fakeStat.st_ex_mtime; err: TALLOC_FREE(statPath); out: DEBUG(MH_INFO_DEBUG, ("Leaving with (*clientFname)->base_name " "'%s', (*clientFname)->st.st_ex_mtime %s", (*clientFname)->base_name, ctime(&((*clientFname)->st.st_ex_mtime.tv_sec)))); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_statvfs(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf) { DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path)); int status; if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_STATVFS(handle, path, statbuf); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_STATVFS(handle, clientPath, statbuf); err: TALLOC_FREE(clientPath); out: DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n", path)); return status; } static int alloc_set_client_dirinfo(vfs_handle_struct *handle, const char *fname, struct mh_dirinfo_struct **dirInfo) { DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname)); int status = 0; *dirInfo = talloc(NULL, struct mh_dirinfo_struct); if (*dirInfo == NULL) { goto err; } (*dirInfo)->dirpath = talloc_strdup(*dirInfo, fname); if ((*dirInfo)->dirpath == NULL) { goto err; } if (!is_in_media_files(fname)) { (*dirInfo)->clientPath = NULL; (*dirInfo)->clientMDBFilename = NULL; (*dirInfo)->clientPMRFilename = NULL; (*dirInfo)->clientCreatingDirname = NULL; (*dirInfo)->isInMediaFiles = False; goto out; } (*dirInfo)->isInMediaFiles = True; if (alloc_set_client_dirinfo_path(handle, *dirInfo, &((*dirInfo)->clientMDBFilename), MDB_FILENAME)) { goto err; } if (alloc_set_client_dirinfo_path(handle, *dirInfo, &((*dirInfo)->clientPMRFilename), PMR_FILENAME)) { goto err; } if (alloc_set_client_dirinfo_path(handle, *dirInfo, &((*dirInfo)->clientCreatingDirname), CREATING_DIRNAME)) { goto err; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_path(handle, ctx, fname, &clientPath)) { goto err; } (*dirInfo)->clientPath = talloc_strdup(*dirInfo, clientPath); if ((*dirInfo)->clientPath == NULL) { goto err; } TALLOC_FREE(clientPath); out: DEBUG(MH_INFO_DEBUG, ("Leaving with (*dirInfo)->dirpath '%s', " "(*dirInfo)->clientPath '%s'\n", (*dirInfo)->dirpath, (*dirInfo)->clientPath)); return status; err: DEBUG(MH_ERR_DEBUG, ("Failing with fname '%s'\n", fname)); TALLOC_FREE(*dirInfo); status = -1; errno = ENOMEM; return status; } /* Success: return a mh_dirinfo_struct cast as a DIR * Failure: set errno, return NULL */ static DIR *mh_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr) { DEBUG(MH_INFO_DEBUG, ("Entering with fname '%s'\n", fname)); struct mh_dirinfo_struct *dirInfo; if (alloc_set_client_dirinfo(handle, fname, &dirInfo)) { goto err; } if (!dirInfo->isInMediaFiles) { dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(handle, fname, mask, attr); } else { dirInfo->dirstream = SMB_VFS_NEXT_OPENDIR(handle, dirInfo->clientPath, mask, attr); } if (dirInfo->dirstream == NULL) { goto err; } out: /* Success is freed in closedir. */ DEBUG(MH_INFO_DEBUG, ("Leaving with dirInfo->dirpath '%s', " "dirInfo->clientPath '%s'\n", dirInfo->dirpath, dirInfo->clientPath)); return (DIR*)dirInfo; err: /* Failure is freed here. */ DEBUG(MH_ERR_DEBUG, ("Failing with fname '%s'\n", fname)); TALLOC_FREE(dirInfo); return NULL; } static DIR *mh_fdopendir(vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32 attr) { DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name '%s'\n", fsp->fsp_name->base_name)); struct mh_dirinfo_struct *dirInfo; DIR *dirstream; dirstream = SMB_VFS_NEXT_FDOPENDIR(handle, fsp, mask, attr); if (!dirstream) { goto err; } if (alloc_set_client_dirinfo(handle, fsp->fsp_name->base_name, &dirInfo)) { goto err; } dirInfo->dirstream = dirstream; if (! dirInfo->isInMediaFiles) { goto out; } if (set_fake_mtime(handle, fsp, &(fsp->fsp_name), sys_stat)) { goto err; } out: DEBUG(MH_INFO_DEBUG, ("Leaving with dirInfo->dirpath '%s', " "dirInfo->clientPath '%s', " "fsp->fsp_name->st.st_ex_mtime %s", dirInfo->dirpath, dirInfo->clientPath, ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)))); /* Success is freed in closedir. */ return (DIR *) dirInfo; err: /* Failure is freed here. */ DEBUG(MH_ERR_DEBUG, ("Failing with fsp->fsp_name->base_name '%s'\n", fsp->fsp_name->base_name)); TALLOC_FREE(dirInfo); return NULL; } /* * skip MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME * directory, skip other client's suffixed MDB_FILENAME and PMR_FILENAME * filenames and CREATING_DIRNAME directory, replace this client's * suffixed MDB_FILENAME and PMR_FILENAME filenames and CREATING_DIRNAME * directory with non suffixed. * * Success: return dirent * End of data: return NULL * Failure: set errno, return NULL */ static struct dirent *mh_readdir(vfs_handle_struct *handle, DIR *dirp, SMB_STRUCT_STAT *sbuf) { DEBUG(MH_INFO_DEBUG, ("Entering mh_readdir\n")); mh_dirinfo_struct* dirInfo = (mh_dirinfo_struct*)dirp; DEBUG(MH_INFO_DEBUG, ("dirInfo->dirpath '%s', " "dirInfo->clientPath '%s', " "dirInfo->isInMediaFiles '%s', " "dirInfo->clientMDBFilename '%s', " "dirInfo->clientPMRFilename '%s', " "dirInfo->clientCreatingDirname '%s'\n", dirInfo->dirpath, dirInfo->clientPath, dirInfo->isInMediaFiles ? "True" : "False", dirInfo->clientMDBFilename, dirInfo->clientPMRFilename, dirInfo->clientCreatingDirname)); struct dirent *d = NULL; if (! dirInfo->isInMediaFiles) { d = SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf); goto out; } int skip; do { skip = False; d = SMB_VFS_NEXT_READDIR(handle, dirInfo->dirstream, sbuf); if (d == NULL) { break; } const char* dname; bool isAppleDouble; /* ignore apple double prefix for logic below */ if (is_apple_double(d->d_name)) { dname = &d->d_name[APPLE_DOUBLE_PREFIX_LEN]; isAppleDouble = True; } else { dname = d->d_name; isAppleDouble = False; } /* skip Avid-special files with no client suffix */ if ( strcmp(dname, MDB_FILENAME) == 0 || strcmp(dname, PMR_FILENAME) == 0 || strcmp(dname, CREATING_DIRNAME) == 0 ) { skip = True; } /* chop client suffix off this client's suffixed files */ else if (strcmp(dname, dirInfo->clientMDBFilename) == 0) { if (isAppleDouble) { d->d_name[MDB_FILENAME_LEN + APPLE_DOUBLE_PREFIX_LEN] = '\0'; } else { d->d_name[MDB_FILENAME_LEN] = '\0'; } } else if (strcmp(dname, dirInfo->clientPMRFilename) == 0) { if (isAppleDouble) { d->d_name[PMR_FILENAME_LEN + APPLE_DOUBLE_PREFIX_LEN] = '\0'; } else { d->d_name[PMR_FILENAME_LEN] = '\0'; } } else if (strcmp(dname, dirInfo->clientCreatingDirname) == 0) { if (isAppleDouble) { d->d_name[CREATING_DIRNAME_LEN + APPLE_DOUBLE_PREFIX_LEN] = '\0'; } else { d->d_name[CREATING_DIRNAME_LEN] = '\0'; } } /* * Anything that starts as an Avid-special file * that's made it this far should be skipped. This * is different from the original behaviour, which * only skipped other client's suffixed files. */ else if ( strncmp(MDB_FILENAME, dname, MDB_FILENAME_LEN) == 0 || strncmp(PMR_FILENAME, dname, PMR_FILENAME_LEN) == 0 || strncmp(CREATING_DIRNAME, dname, CREATING_DIRNAME_LEN) == 0 ) { skip = True; } } while (skip); out: DEBUG(MH_INFO_DEBUG, ("Leaving mh_readdir\n")); return d; } /* * Success: no success result defined. * Failure: no failure result defined. */ static void mh_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset) { DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_seekdir\n")); SMB_VFS_NEXT_SEEKDIR(handle, ((mh_dirinfo_struct*)dirp)->dirstream, offset); } /* * Success: return long * Failure: no failure result defined. */ static long mh_telldir(vfs_handle_struct *handle, DIR *dirp) { DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_telldir\n")); return SMB_VFS_NEXT_TELLDIR(handle, ((mh_dirinfo_struct*)dirp)->dirstream); } /* * Success: no success result defined. * Failure: no failure result defined. */ static void mh_rewinddir(vfs_handle_struct *handle, DIR *dirp) { DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_rewinddir\n")); SMB_VFS_NEXT_REWINDDIR(handle, ((mh_dirinfo_struct*)dirp)->dirstream); } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode) { DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path)); int status; if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_MKDIR(handle, path, mode); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_MKDIR(handle, clientPath, mode); err: TALLOC_FREE(clientPath); out: DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n", path)); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_rmdir(vfs_handle_struct *handle, const char *path) { DEBUG(MH_INFO_DEBUG, ("Entering with path '%s'\n", path)); int status; if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_RMDIR(handle, path); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_RMDIR(handle, clientPath); err: TALLOC_FREE(clientPath); out: DEBUG(MH_INFO_DEBUG, ("Leaving with path '%s'\n", path)); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_closedir(vfs_handle_struct *handle, DIR *dirp) { DEBUG(MH_INFO_DEBUG, ("Entering mh_closedir\n")); DIR *realdirp = ((mh_dirinfo_struct*)dirp)->dirstream; // Will this talloc_free destroy realdirp? TALLOC_FREE(dirp); DEBUG(MH_INFO_DEBUG, ("Leaving mh_closedir\n")); return SMB_VFS_NEXT_CLOSEDIR(handle, realdirp); } /* * Success: no success result defined. * Failure: no failure result defined. */ static void mh_init_search_op(vfs_handle_struct *handle, DIR *dirp) { DEBUG(MH_INFO_DEBUG, ("Entering and leaving mh_init_search_op\n")); SMB_VFS_NEXT_INIT_SEARCH_OP(handle, ((mh_dirinfo_struct*)dirp)->dirstream); } /* * Success: return non-negative file descriptor * Failure: set errno, return -1 */ static int mh_open(vfs_handle_struct *handle, struct smb_filename *smb_fname, files_struct *fsp, int flags, mode_t mode) { DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n", smb_fname->base_name)); int ret; if (!is_in_media_files(smb_fname->base_name)) { ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if(alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) { ret = -1; goto err; } // What about fsp->fsp_name? // We also have to get correct stat info into fsp and smb_fname // for DB files, don't we? DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s' " "smb_fname->st.st_ex_mtime %s" " fsp->fsp_name->st.st_ex_mtime %s", smb_fname->base_name, ctime(&(smb_fname->st.st_ex_mtime.tv_sec)), ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)))); ret = SMB_VFS_NEXT_OPEN(handle, clientFname, fsp, flags, mode); err: TALLOC_FREE(clientFname); out: DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'\n", smb_fname->base_name)); return ret; } /* * Success: return non-negative file descriptor * Failure: set errno, return -1 */ static NTSTATUS mh_create_file(vfs_handle_struct *handle, struct smb_request *req, uint16_t root_dir_fid, struct smb_filename *smb_fname, uint32_t access_mask, uint32_t share_access, uint32_t create_disposition, uint32_t create_options, uint32_t file_attributes, uint32_t oplock_request, uint64_t allocation_size, uint32_t private_flags, struct security_descriptor *sd, struct ea_list *ea_list, files_struct **result_fsp, int *pinfo) { NTSTATUS status; DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n", smb_fname->base_name)); if (!is_in_media_files(smb_fname->base_name)) { status = SMB_VFS_NEXT_CREATE_FILE( handle, req, root_dir_fid, smb_fname, access_mask, share_access, create_disposition, create_options, file_attributes, oplock_request, allocation_size, private_flags, sd, ea_list, result_fsp, pinfo); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) { status = map_nt_error_from_unix(errno); goto err; } /* This only creates files, so we don't have to worry about * our fake directory stat'ing here. */ // But we still need to route stat calls for DB files // properly, right? status = SMB_VFS_NEXT_CREATE_FILE( handle, req, root_dir_fid, clientFname, access_mask, share_access, create_disposition, create_options, file_attributes, oplock_request, allocation_size, private_flags, sd, ea_list, result_fsp, pinfo); err: TALLOC_FREE(clientFname); out: DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->base_name '%s'" "smb_fname->st.st_ex_mtime %s" " fsp->fsp_name->st.st_ex_mtime %s", smb_fname->base_name, ctime(&(smb_fname->st.st_ex_mtime.tv_sec)), (*result_fsp) && VALID_STAT((*result_fsp)->fsp_name->st) ? ctime(&((*result_fsp)->fsp_name->st.st_ex_mtime.tv_sec)) : "No fsp time\n")); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_rename(vfs_handle_struct *handle, const struct smb_filename *smb_fname_src, const struct smb_filename *smb_fname_dst) { DEBUG(MH_INFO_DEBUG, ("Entering with " "smb_fname_src->base_name '%s', " "smb_fname_dst->base_name '%s'\n", smb_fname_src->base_name, smb_fname_dst->base_name)); int status; if (!is_in_media_files(smb_fname_src->base_name) && !is_in_media_files(smb_fname_dst->base_name)) { status = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst); goto out; } struct smb_filename *srcClientFname = NULL; struct smb_filename *dstClientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_smb_fname(handle, ctx, smb_fname_src, &srcClientFname)) { goto err; } if (status = alloc_get_client_smb_fname(handle, ctx, smb_fname_dst, &dstClientFname)) { goto err; } status = SMB_VFS_NEXT_RENAME(handle, srcClientFname, dstClientFname); err: TALLOC_FREE(dstClientFname); TALLOC_FREE(srcClientFname); out: DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname_src->base_name '%s'," " smb_fname_dst->base_name '%s'\n", smb_fname_src->base_name, smb_fname_dst->base_name)); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname) { DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n", smb_fname->base_name)); int status = 0; if (!is_in_media_files(smb_fname->base_name)) { status = SMB_VFS_NEXT_STAT(handle, smb_fname); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) { goto err; } DEBUG(MH_INFO_DEBUG, ("Stat'ing clientFname->base_name '%s'\n", clientFname->base_name)); if (status = SMB_VFS_NEXT_STAT(handle, clientFname)) { goto err; } if (status = set_fake_mtime(handle, ctx, &clientFname, sys_stat)) { goto err; } /* Unlike functions with const smb_filename, we have to * modify smb_fname itself to pass our info back up. */ DEBUG(MH_INFO_DEBUG, ("Setting smb_fname '%s' stat " "from clientFname '%s'\n", smb_fname->base_name, clientFname->base_name)); smb_fname->st = clientFname->st; err: TALLOC_FREE(clientFname); out: DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s", ctime(&(smb_fname->st.st_ex_mtime.tv_sec)))); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_lstat(vfs_handle_struct *handle, struct smb_filename *smb_fname) { DEBUG(MH_INFO_DEBUG, ("Entering with smb_fname->base_name '%s'\n", smb_fname->base_name)); int status = 0; if (!is_in_media_files(smb_fname->base_name)) { status = SMB_VFS_NEXT_LSTAT(handle, smb_fname); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) { goto err; } if (status = SMB_VFS_NEXT_LSTAT(handle, clientFname)) { goto err; } if (status = set_fake_mtime(handle, ctx, &clientFname, sys_lstat)) { goto err; } /* Unlike functions with const smb_filename, we have to * modify smb_fname itself to pass our info back up. */ smb_fname->st = clientFname->st; err: TALLOC_FREE(clientFname); out: DEBUG(MH_INFO_DEBUG, ("Leaving with smb_fname->st.st_ex_mtime %s", ctime(&(smb_fname->st.st_ex_mtime.tv_sec)))); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_fstat(vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf) { DEBUG(MH_INFO_DEBUG, ("Entering with fsp->fsp_name->base_name " "'%s'\n", fsp_str_dbg(fsp))); int status = 0; if (status = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf)) { goto out; } if (fsp->fsp_name == NULL || !is_in_media_files(fsp->fsp_name->base_name)) { goto out; } if (status = mh_stat(handle, fsp->fsp_name)) { goto out; } *sbuf = fsp->fsp_name->st; out: DEBUG(MH_INFO_DEBUG, ("Leaving with fsp->fsp_name->st.st_ex_mtime " "%s", ctime(&(fsp->fsp_name->st.st_ex_mtime.tv_sec)))); return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_unlink(vfs_handle_struct *handle, const struct smb_filename *smb_fname) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_unlink\n")); if (!is_in_media_files(smb_fname->base_name)) { status = SMB_VFS_NEXT_UNLINK(handle, smb_fname); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) { goto err; } status = SMB_VFS_NEXT_UNLINK(handle, clientFname); err: TALLOC_FREE(clientFname); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_chmod(vfs_handle_struct *handle, const char *path, mode_t mode) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_chmod\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_CHMOD(handle, path, mode); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_CHMOD(handle, clientPath, mode); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_chown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_chown\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_CHOWN(handle, clientPath, uid, gid); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_lchown(vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_lchown\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_LCHOWN(handle, path, uid, gid); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_LCHOWN(handle, clientPath, uid, gid); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_chdir(vfs_handle_struct *handle, const char *path) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_chdir\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_CHDIR(handle, path); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_CHDIR(handle, clientPath); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_ntimes(vfs_handle_struct *handle, const struct smb_filename *smb_fname, struct smb_file_time *ft) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_ntimes\n")); if (!is_in_media_files(smb_fname->base_name)) { status = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_smb_fname(handle, ctx, smb_fname, &clientFname)) { goto err; } status = SMB_VFS_NEXT_NTIMES(handle, clientFname, ft); err: TALLOC_FREE(clientFname); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_symlink(vfs_handle_struct *handle, const char *oldpath, const char *newpath) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_symlink\n")); if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) { status = SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath); goto out; } char *oldClientPath = NULL; char *newClientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, oldpath, &oldClientPath)) { goto err; } if (status = alloc_get_client_path(handle, ctx, newpath, &newClientPath)) { goto err; } status = SMB_VFS_NEXT_SYMLINK(handle, oldClientPath, newClientPath); err: TALLOC_FREE(newClientPath); TALLOC_FREE(oldClientPath); out: return status; } /* * Success: return byte count * Failure: set errno, return -1 */ static int mh_readlink(vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_readlink\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_READLINK(handle, clientPath, buf, bufsiz); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_link(vfs_handle_struct *handle, const char *oldpath, const char *newpath) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_link\n")); if (!is_in_media_files(oldpath) && !is_in_media_files(newpath)) { status = SMB_VFS_NEXT_LINK(handle, oldpath, newpath); goto out; } char *oldClientPath = NULL; char *newClientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, oldpath, &oldClientPath)) { goto err; } if (status = alloc_get_client_path(handle, ctx, newpath, &newClientPath)) { goto err; } status = SMB_VFS_NEXT_LINK(handle, oldClientPath, newClientPath); err: TALLOC_FREE(newClientPath); TALLOC_FREE(oldClientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_mknod(vfs_handle_struct *handle, const char *pathname, mode_t mode, SMB_DEV_T dev) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_mknod\n")); if (!is_in_media_files(pathname)) { status = SMB_VFS_NEXT_MKNOD(handle, pathname, mode, dev); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, pathname, &clientPath)) { goto err; } status = SMB_VFS_NEXT_MKNOD(handle, clientPath, mode, dev); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return path pointer * Failure: set errno, return NULL pointer */ static char *mh_realpath(vfs_handle_struct *handle, const char *path) { char *buf; DEBUG(MH_INFO_DEBUG, ("Entering mh_realpath\n")); if (!is_in_media_files(path)) { buf = SMB_VFS_NEXT_REALPATH(handle, path); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_path(handle, ctx, path, &clientPath)) { buf = NULL; goto err; } buf = SMB_VFS_NEXT_REALPATH(handle, clientPath); err: TALLOC_FREE(clientPath); out: return buf; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_chflags(vfs_handle_struct *handle, const char *path, unsigned int flags) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_chflags\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_CHFLAGS(handle, path, flags); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_CHFLAGS(handle, clientPath, flags); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return NT_STATUS_OK * Failure: return NT status error */ static NTSTATUS mh_streaminfo(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *fname, TALLOC_CTX *ctx, unsigned int *num_streams, struct stream_struct **streams) { NTSTATUS status; DEBUG(MH_INFO_DEBUG, ("Entering mh_streaminfo\n")); if (!is_in_media_files(fname)) { status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, ctx, num_streams, streams); goto out; } char *clientPath = NULL; TALLOC_CTX *mem_ctx = talloc_tos(); if (alloc_get_client_path(handle, mem_ctx, fname, &clientPath)) { status = map_nt_error_from_unix(errno); goto err; } /* This only works on files, so we don't have to worry about * our fake directory stat'ing here. */ // But what does this function do, exactly? Does it need // extra modifications for the Avid stuff? status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, clientPath, ctx, num_streams, streams); err: TALLOC_FREE(clientPath); out: return status; } /* Ignoring get_real_filename function because the default * doesn't do anything. */ /* * Success: return NT_STATUS_OK * Failure: return NT status error * In this case, "name" is a path. */ static NTSTATUS mh_get_nt_acl(vfs_handle_struct *handle, const char *name, uint32 security_info, struct security_descriptor **ppdesc) { NTSTATUS status; DEBUG(MH_INFO_DEBUG, ("Entering mh_get_nt_acl\n")); if (!is_in_media_files(name)) { status = SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info, ppdesc); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_path(handle, ctx, name, &clientPath)) { status = map_nt_error_from_unix(errno); goto err; } status = SMB_VFS_NEXT_GET_NT_ACL(handle, clientPath, security_info, ppdesc); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_chmod_acl\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_CHMOD_ACL(handle, path, mode); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_CHMOD_ACL(handle, clientPath, mode); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return acl pointer * Failure: set errno, return NULL */ static SMB_ACL_T mh_sys_acl_get_file(vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type) { SMB_ACL_T ret; DEBUG(MH_INFO_DEBUG, ("Entering mh_sys_acl_get_file\n")); if (!is_in_media_files(path_p)) { ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p, type); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_path(handle, ctx, path_p, &clientPath)) { ret = NULL; goto err; } ret = SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, clientPath, type); err: TALLOC_FREE(clientPath); out: return ret; } /* * Success: return 0 * Failure: set errno, return -1 * In this case, "name" is a path. */ static int mh_sys_acl_set_file(vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_sys_acl_set_file\n")); if (!is_in_media_files(name)) { status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, acltype, theacl); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, name, &clientPath)) { goto err; } status = SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, clientPath, acltype, theacl); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 */ static int mh_sys_acl_delete_def_file(vfs_handle_struct *handle, const char *path) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_sys_acl_delete_def_file\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, clientPath); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return positive number * Failure: set errno, return -1 * In this case, "name" is an attr name. */ static ssize_t mh_getxattr(struct vfs_handle_struct *handle, const char *path, const char *name, void *value, size_t size) { ssize_t ret; DEBUG(MH_INFO_DEBUG, ("Entering mh_getxattr\n")); if (!is_in_media_files(path)) { ret = SMB_VFS_NEXT_GETXATTR(handle, path, name, value, size); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_path(handle, ctx, path, &clientPath)) { ret = -1; goto err; } ret = SMB_VFS_NEXT_GETXATTR(handle, clientPath, name, value, size); err: TALLOC_FREE(clientPath); out: return ret; } /* * Success: return positive number * Failure: set errno, return -1 */ static ssize_t mh_listxattr(struct vfs_handle_struct *handle, const char *path, char *list, size_t size) { ssize_t ret; DEBUG(MH_INFO_DEBUG, ("Entering mh_listxattr\n")); if (!is_in_media_files(path)) { ret = SMB_VFS_NEXT_LISTXATTR(handle, path, list, size); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (alloc_get_client_path(handle, ctx, path, &clientPath)) { ret = -1; goto err; } ret = SMB_VFS_NEXT_LISTXATTR(handle, clientPath, list, size); err: TALLOC_FREE(clientPath); out: return ret; } /* * Success: return 0 * Failure: set errno, return -1 * In this case, "name" is an attr name. */ static int mh_removexattr(struct vfs_handle_struct *handle, const char *path, const char *name) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_removexattr\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_REMOVEXATTR(handle, path, name); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_REMOVEXATTR(handle, clientPath, name); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return 0 * Failure: set errno, return -1 * In this case, "name" is an attr name. */ static int mh_setxattr(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_setxattr\n")); if (!is_in_media_files(path)) { status = SMB_VFS_NEXT_SETXATTR(handle, path, name, value, size, flags); goto out; } char *clientPath = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_path(handle, ctx, path, &clientPath)) { goto err; } status = SMB_VFS_NEXT_SETXATTR(handle, clientPath, name, value, size, flags); err: TALLOC_FREE(clientPath); out: return status; } /* * Success: return true * Failure: set errno, return false */ static bool mh_is_offline(struct vfs_handle_struct *handle, const struct smb_filename *fname, SMB_STRUCT_STAT *sbuf) { // check if sbuf is modified further down the chain. bool ret; DEBUG(MH_INFO_DEBUG, ("Entering mh_is_offline\n")); if (!is_in_media_files(fname->base_name)) { ret = SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if(alloc_get_client_smb_fname(handle, ctx, fname, &clientFname)) { ret = -1; goto err; } ret = SMB_VFS_NEXT_IS_OFFLINE(handle, clientFname, sbuf); err: TALLOC_FREE(clientFname); out: return ret; } /* * Success: return 0 (?) * Failure: set errno, return -1 */ static int mh_set_offline(struct vfs_handle_struct *handle, const struct smb_filename *fname) { int status; DEBUG(MH_INFO_DEBUG, ("Entering mh_set_offline\n")); if (!is_in_media_files(fname->base_name)) { status = SMB_VFS_NEXT_SET_OFFLINE(handle, fname); goto out; } struct smb_filename *clientFname = NULL; TALLOC_CTX *ctx = talloc_tos(); if (status = alloc_get_client_smb_fname(handle, ctx, fname, &clientFname)) { goto err; } status = SMB_VFS_NEXT_SET_OFFLINE(handle, clientFname); err: TALLOC_FREE(clientFname); out: return status; } /* VFS operations structure */ static struct vfs_fn_pointers vfs_mh_fns = { /* Disk operations */ .statvfs_fn = mh_statvfs, /* Directory operations */ .opendir_fn = mh_opendir, .fdopendir_fn = mh_fdopendir, .readdir_fn = mh_readdir, .seekdir_fn = mh_seekdir, .telldir_fn = mh_telldir, .rewind_dir_fn = mh_rewinddir, .mkdir_fn = mh_mkdir, .rmdir_fn = mh_rmdir, .closedir_fn = mh_closedir, .init_search_op_fn = mh_init_search_op, /* File operations */ .open_fn = mh_open, .create_file_fn = mh_create_file, .rename_fn = mh_rename, .stat_fn = mh_stat, .lstat_fn = mh_lstat, .fstat_fn = mh_fstat, .unlink_fn = mh_unlink, .chmod_fn = mh_chmod, .chown_fn = mh_chown, .lchown_fn = mh_lchown, .chdir_fn = mh_chdir, .ntimes_fn = mh_ntimes, .symlink_fn = mh_symlink, .readlink_fn = mh_readlink, .link_fn = mh_link, .mknod_fn = mh_mknod, .realpath_fn = mh_realpath, .chflags_fn = mh_chflags, .streaminfo_fn = mh_streaminfo, /* NT ACL operations. */ .get_nt_acl_fn = mh_get_nt_acl, /* POSIX ACL operations. */ .chmod_acl_fn = mh_chmod_acl, .sys_acl_get_file_fn = mh_sys_acl_get_file, .sys_acl_set_file_fn = mh_sys_acl_set_file, .sys_acl_delete_def_file_fn = mh_sys_acl_delete_def_file, /* EA operations. */ .getxattr_fn = mh_getxattr, .listxattr_fn = mh_listxattr, .removexattr_fn = mh_removexattr, .setxattr_fn = mh_setxattr, /* aio operations */ /* offline operations */ .is_offline_fn = mh_is_offline, .set_offline_fn = mh_set_offline }; NTSTATUS vfs_media_harmony_init(void); NTSTATUS vfs_media_harmony_init(void) { NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "media_harmony", &vfs_mh_fns); if (!NT_STATUS_IS_OK(ret)) { goto out; } vfs_mh_debug_level = debug_add_class("media_harmony"); if (vfs_mh_debug_level == -1) { vfs_mh_debug_level = DBGC_VFS; DEBUG(1, ("media_harmony_init: Couldn't register custom " "debugging class.\n")); } else { DEBUG(3, ("media_harmony_init: Debug class number of " "'media_harmony': %d\n", vfs_mh_debug_level)); } out: return ret; }