diff options
Diffstat (limited to 'source3/smbd/trans2.c')
| -rw-r--r-- | source3/smbd/trans2.c | 197 |
1 files changed, 194 insertions, 3 deletions
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c index b61839df07..a129227215 100644 --- a/source3/smbd/trans2.c +++ b/source3/smbd/trans2.c @@ -2086,7 +2086,7 @@ cBytesSector=%u, cUnitTotal=%u, cUnitAvail=%d\n", (unsigned int)bsize, (unsigned data_len = 12; SSVAL(pdata,0,CIFS_UNIX_MAJOR_VERSION); SSVAL(pdata,2,CIFS_UNIX_MINOR_VERSION); - SBIG_UINT(pdata,4,((SMB_BIG_UINT)0)); /* No capabilities for now... */ + SBIG_UINT(pdata,4,((SMB_BIG_UINT)CIFS_UNIX_POSIX_ACLS_CAP)); /* We have POSIX ACLs. */ break; case SMB_MAC_QUERY_FS_INFO: @@ -2227,8 +2227,8 @@ static int call_trans2setfsinfo(connection_struct *conn, char *inbuf, char *outb #endif /* HAVE_SYS_QUOTAS */ /**************************************************************************** - * Utility function to set bad path error. - ****************************************************************************/ + Utility function to set bad path error. +****************************************************************************/ int set_bad_path_error(int err, BOOL bad_path, char *outbuf, int def_class, uint32 def_code) { @@ -2246,6 +2246,120 @@ int set_bad_path_error(int err, BOOL bad_path, char *outbuf, int def_class, uint } /**************************************************************************** + Utility function to count the number of entries in a POSIX acl. +****************************************************************************/ + +static unsigned int count_acl_entries(connection_struct *conn, SMB_ACL_T posix_acl) +{ + unsigned int ace_count = 0; + int entry_id = SMB_ACL_FIRST_ENTRY; + SMB_ACL_ENTRY_T entry; + + while ( posix_acl && (SMB_VFS_SYS_ACL_GET_ENTRY(conn, posix_acl, entry_id, &entry) == 1)) { + /* get_next... */ + if (entry_id == SMB_ACL_FIRST_ENTRY) { + entry_id = SMB_ACL_NEXT_ENTRY; + } + ace_count++; + } + return ace_count; +} + +/**************************************************************************** + Utility function to marshall a POSIX acl into wire format. +****************************************************************************/ + +static BOOL marshall_posix_acl(connection_struct *conn, char *pdata, SMB_STRUCT_STAT *pst, SMB_ACL_T posix_acl) +{ + int entry_id = SMB_ACL_FIRST_ENTRY; + SMB_ACL_ENTRY_T entry; + + while ( posix_acl && (SMB_VFS_SYS_ACL_GET_ENTRY(conn, posix_acl, entry_id, &entry) == 1)) { + SMB_ACL_TAG_T tagtype; + SMB_ACL_PERMSET_T permset; + unsigned char perms = 0; + unsigned int own_grp; + + /* get_next... */ + if (entry_id == SMB_ACL_FIRST_ENTRY) { + entry_id = SMB_ACL_NEXT_ENTRY; + } + + if (SMB_VFS_SYS_ACL_GET_TAG_TYPE(conn, entry, &tagtype) == -1) { + DEBUG(0,("marshall_posix_acl: SMB_VFS_SYS_ACL_GET_TAG_TYPE failed.\n")); + return False; + } + + if (SMB_VFS_SYS_ACL_GET_PERMSET(conn, entry, &permset) == -1) { + DEBUG(0,("marshall_posix_acl: SMB_VFS_SYS_ACL_GET_PERMSET failed.\n")); + return False; + } + + perms |= (SMB_VFS_SYS_ACL_GET_PERM(conn, permset, SMB_ACL_READ) ? SMB_POSIX_ACL_READ : 0); + perms |= (SMB_VFS_SYS_ACL_GET_PERM(conn, permset, SMB_ACL_WRITE) ? SMB_POSIX_ACL_WRITE : 0); + perms |= (SMB_VFS_SYS_ACL_GET_PERM(conn, permset, SMB_ACL_EXECUTE) ? SMB_POSIX_ACL_EXECUTE : 0); + + SCVAL(pdata,1,perms); + + switch (tagtype) { + case SMB_ACL_USER_OBJ: + SCVAL(pdata,0,SMB_POSIX_ACL_USER_OBJ); + own_grp = (unsigned int)pst->st_uid; + SIVAL(pdata,2,own_grp); + SIVAL(pdata,6,0); + break; + case SMB_ACL_USER: + { + uid_t *puid = (uid_t *)SMB_VFS_SYS_ACL_GET_QUALIFIER(conn, entry); + if (!puid) { + DEBUG(0,("marshall_posix_acl: SMB_VFS_SYS_ACL_GET_QUALIFIER failed.\n")); + } + own_grp = (unsigned int)*puid; + SMB_VFS_SYS_ACL_FREE_QUALIFIER(conn, (void *)puid,tagtype); + SCVAL(pdata,0,SMB_POSIX_ACL_USER); + SIVAL(pdata,2,own_grp); + SIVAL(pdata,6,0); + break; + } + case SMB_ACL_GROUP_OBJ: + SCVAL(pdata,0,SMB_POSIX_ACL_GROUP_OBJ); + own_grp = (unsigned int)pst->st_gid; + SIVAL(pdata,2,own_grp); + SIVAL(pdata,6,0); + break; + case SMB_ACL_GROUP: + { + gid_t *pgid= (gid_t *)SMB_VFS_SYS_ACL_GET_QUALIFIER(conn, entry); + if (!pgid) { + DEBUG(0,("marshall_posix_acl: SMB_VFS_SYS_ACL_GET_QUALIFIER failed.\n")); + } + own_grp = (unsigned int)*pgid; + SMB_VFS_SYS_ACL_FREE_QUALIFIER(conn, (void *)pgid,tagtype); + SCVAL(pdata,0,SMB_POSIX_ACL_GROUP); + SIVAL(pdata,2,own_grp); + SIVAL(pdata,6,0); + break; + } + case SMB_ACL_MASK: + SCVAL(pdata,0,SMB_POSIX_ACL_MASK); + SIVAL(pdata,2,0xFFFFFFFF); + SIVAL(pdata,6,0xFFFFFFFF); + break; + case SMB_ACL_OTHER: + SCVAL(pdata,0,SMB_POSIX_ACL_OTHER); + SIVAL(pdata,2,0xFFFFFFFF); + SIVAL(pdata,6,0xFFFFFFFF); + break; + default: + DEBUG(0,("marshall_posix_acl: unknown tagtype.\n")); + return False; + } + } + + return True; +} + +/**************************************************************************** Reply to a TRANS2_QFILEPATHINFO or TRANSACT2_QFILEINFO (query file info by file name or file id). ****************************************************************************/ @@ -2800,6 +2914,83 @@ static int call_trans2qfilepathinfo(connection_struct *conn, char *inbuf, char * break; } + case SMB_QUERY_POSIX_ACL: + { + SMB_ACL_T file_acl = NULL; + SMB_ACL_T dir_acl = NULL; + uint16 num_file_acls = 0; + uint16 num_dir_acls = 0; + + if (fsp && !fsp->is_directory && (fsp->fd != -1)) { + file_acl = SMB_VFS_SYS_ACL_GET_FD(fsp, fsp->fd); + } else { + file_acl = SMB_VFS_SYS_ACL_GET_FILE(conn, fname, SMB_ACL_TYPE_ACCESS); + } + + if (file_acl == NULL && no_acl_syscall_error(errno)) { + DEBUG(5,("call_trans2qfilepathinfo: ACLs not implemented on filesystem containing %s\n", + fname )); + return ERROR_NT(NT_STATUS_NOT_IMPLEMENTED); + } + + if (S_ISDIR(sbuf.st_mode)) { + if (fsp && fsp->is_directory) { + dir_acl = SMB_VFS_SYS_ACL_GET_FILE(conn, fsp->fsp_name, SMB_ACL_TYPE_DEFAULT); + } else { + dir_acl = SMB_VFS_SYS_ACL_GET_FILE(conn, fname, SMB_ACL_TYPE_DEFAULT); + } + dir_acl = free_empty_sys_acl(conn, dir_acl); + } + + num_file_acls = count_acl_entries(conn, file_acl); + num_dir_acls = count_acl_entries(conn, dir_acl); + + if ( data_size < (num_file_acls + num_dir_acls)*SMB_POSIX_ACL_ENTRY_SIZE + SMB_POSIX_ACL_HEADER_SIZE) { + DEBUG(5,("call_trans2qfilepathinfo: data_size too small (%u) need %u\n", + data_size, + (unsigned int)((num_file_acls + num_dir_acls)*SMB_POSIX_ACL_ENTRY_SIZE + + SMB_POSIX_ACL_HEADER_SIZE) )); + if (file_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, file_acl); + } + if (dir_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, dir_acl); + } + return ERROR_NT(NT_STATUS_BUFFER_TOO_SMALL); + } + + SSVAL(pdata,0,SMB_POSIX_ACL_VERSION); + SSVAL(pdata,2,num_file_acls); + SSVAL(pdata,4,num_dir_acls); + if (!marshall_posix_acl(conn, pdata + SMB_POSIX_ACL_HEADER_SIZE, &sbuf, file_acl)) { + if (file_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, file_acl); + } + if (dir_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, dir_acl); + } + return ERROR_NT(NT_STATUS_INTERNAL_ERROR); + } + if (!marshall_posix_acl(conn, pdata + SMB_POSIX_ACL_HEADER_SIZE + (num_file_acls*SMB_POSIX_ACL_ENTRY_SIZE), &sbuf, dir_acl)) { + if (file_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, file_acl); + } + if (dir_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, dir_acl); + } + return ERROR_NT(NT_STATUS_INTERNAL_ERROR); + } + + if (file_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, file_acl); + } + if (dir_acl) { + SMB_VFS_SYS_ACL_FREE_ACL(conn, dir_acl); + } + data_size = (num_file_acls + num_dir_acls)*SMB_POSIX_ACL_ENTRY_SIZE + SMB_POSIX_ACL_HEADER_SIZE; + break; + } + default: return ERROR_DOS(ERRDOS,ERRunknownlevel); } |