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2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 | /* * proc.c * * Copyright (C) 1995 by Paal-Kr. Engstad and Volker Lendecke * * 28/06/96 - Fixed long file name support (smb_proc_readdir_long) by Yuri Per */ #include <linux/config.h> #include <linux/fs.h> #include <linux/smbno.h> #include <linux/smb_fs.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/malloc.h> #include <linux/stat.h> #include <linux/fcntl.h> #include <asm/segment.h> #include <asm/string.h> #define ARCH i386 #define SMB_VWV(packet) ((packet) + SMB_HEADER_LEN) #define SMB_CMD(packet) ((packet)[8]) #define SMB_WCT(packet) ((packet)[SMB_HEADER_LEN - 1]) #define SMB_BCC(packet) smb_bcc(packet) #define SMB_BUF(packet) ((packet) + SMB_HEADER_LEN + SMB_WCT(packet) * 2 + 2) #define SMB_DIRINFO_SIZE 43 #define SMB_STATUS_SIZE 21 #define HI_WORD(l) ((word)(l >> 16)) #define LO_WORD(l) ((word)(l % 0xFFFF)) void smb_printerr(int class, int num); static int smb_request_ok(struct smb_server *s, int command, int wct, int bcc); static inline int min(int a, int b) { return a<b ? a : b; } /*****************************************************************************/ /* */ /* Encoding/Decoding section */ /* */ /*****************************************************************************/ static byte * smb_encode_word(byte *p, word data) { #if (ARCH == i386) *((word *)p) = data; #else p[0] = data & 0x00ffU; p[1] = (data & 0xff00U) >> 8; #error "Non-Intel" #endif return &p[2]; } static byte * smb_decode_word(byte *p, word *data) { #if (ARCH == i386) *data = *(word *)p; #else *data = (word) p[0] | p[1] << 8; #endif return &p[2]; } byte * smb_encode_smb_length(byte *p, dword len) { p[0] = p[1] = 0; p[2] = (len & 0xFF00) >> 8; p[3] = (len & 0xFF); if (len > 0xFFFF) p[1] |= 0x01; return &p[4]; } static byte * smb_encode_dialect(byte *p, const byte *name, int len) { *p ++ = 2; strcpy(p, name); return p + len + 1; } static byte * smb_encode_ascii(byte *p, const byte *name, int len) { *p ++ = 4; strcpy(p, name); return p + len + 1; } static byte * smb_encode_vblock(byte *p, const byte *data, word len, int fs) { *p ++ = 5; p = smb_encode_word(p, len); if (fs) memcpy_fromfs(p, data, len); else memcpy(p, data, len); return p + len; } static byte * smb_decode_data(byte *p, byte *data, word *data_len, int fs) { word len; if (!(*p == 1 || *p == 5)) { printk("smb_decode_data: Warning! Data block not starting " "with 1 or 5\n"); } len = WVAL(p, 1); p += 3; if (fs) memcpy_tofs(data, p, len); else memcpy(data, p, len); *data_len = len; return p + len; } static byte * smb_name_mangle(byte *p, const byte *name) { int len, pad = 0; len = strlen(name); if (len < 16) pad = 16 - len; *p ++ = 2 * (len + pad); while (*name) { *p ++ = (*name >> 4) + 'A'; *p ++ = (*name & 0x0F) + 'A'; name ++; } while (pad --) { *p ++ = 'C'; *p ++ = 'A'; } *p++ = '\0'; return p; } /* The following are taken directly from msdos-fs */ /* Linear day numbers of the respective 1sts in non-leap years. */ static int day_n[] = { 0,31,59,90,120,151,181,212,243,273,304,334,0,0,0,0 }; /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */ extern struct timezone sys_tz; static int utc2local(int time) { return time - sys_tz.tz_minuteswest*60 + (sys_tz.tz_dsttime ? 3600 : 0); } static int local2utc(int time) { return time + sys_tz.tz_minuteswest*60 - (sys_tz.tz_dsttime ? 3600 : 0); } /* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */ static int date_dos2unix(unsigned short time,unsigned short date) { int month,year,secs; month = ((date >> 5) & 15)-1; year = date >> 9; secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400* ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 && month < 2 ? 1 : 0)+3653); /* days since 1.1.70 plus 80's leap day */ return local2utc(secs); } /* Convert linear UNIX date to a MS-DOS time/date pair. */ static void date_unix2dos(int unix_date,unsigned short *time, unsigned short *date) { int day,year,nl_day,month; unix_date = utc2local(unix_date); *time = (unix_date % 60)/2+(((unix_date/60) % 60) << 5)+ (((unix_date/3600) % 24) << 11); day = unix_date/86400-3652; year = day/365; if ((year+3)/4+365*year > day) year--; day -= (year+3)/4+365*year; if (day == 59 && !(year & 3)) { nl_day = day; month = 2; } else { nl_day = (year & 3) || day <= 59 ? day : day-1; for (month = 0; month < 12; month++) if (day_n[month] > nl_day) break; } *date = nl_day-day_n[month-1]+1+(month << 5)+(year << 9); } /*****************************************************************************/ /* */ /* Support section. */ /* */ /*****************************************************************************/ dword smb_len(byte *packet) { return ((packet[1] & 0x1) << 16L) | (packet[2] << 8L) | (packet[3]); } static word smb_bcc(byte *packet) { int pos = SMB_HEADER_LEN + SMB_WCT(packet) * sizeof(word); #if (ARCH == i386) return *((word *)((byte *)packet + pos)); #else return packet[pos] | packet[pos+1] << 8; #endif } /* smb_valid_packet: We check if packet fulfills the basic requirements of a smb packet */ static int smb_valid_packet(byte *packet) { DDPRINTK("len: %ld, wct: %d, bcc: %d\n", smb_len(packet), SMB_WCT(packet), SMB_BCC(packet)); return ( packet[4] == 0xff && packet[5] == 'S' && packet[6] == 'M' && packet[7] == 'B' && (smb_len(packet) + 4 == SMB_HEADER_LEN + SMB_WCT(packet) * 2 + SMB_BCC(packet))); } /* smb_verify: We check if we got the answer we expected, and if we got enough data. If bcc == -1, we don't care. */ static int smb_verify(byte *packet, int command, int wct, int bcc) { return (SMB_CMD(packet) == command && SMB_WCT(packet) >= wct && (bcc == -1 || SMB_BCC(packet) >= bcc)) ? 0 : -EIO; } static int smb_errno(int errcls, int error) { #if DEBUG_SMB > 1 if (errcls) { printk("smb_errno: "); smb_printerr(errcls, error); printk("\n"); } #endif if (errcls == ERRDOS) switch (error) { case ERRbadfunc: return EINVAL; case ERRbadfile: return ENOENT; case ERRbadpath: return ENOENT; case ERRnofids: return EMFILE; case ERRnoaccess: return EACCES; case ERRbadfid: return EBADF; case ERRbadmcb: return EREMOTEIO; case ERRnomem: return ENOMEM; case ERRbadmem: return EFAULT; case ERRbadenv: return EREMOTEIO; case ERRbadformat: return EREMOTEIO; case ERRbadaccess: return EACCES; case ERRbaddata: return E2BIG; case ERRbaddrive: return ENXIO; case ERRremcd: return EREMOTEIO; case ERRdiffdevice: return EXDEV; case ERRnofiles: return 0; case ERRbadshare: return ETXTBSY; case ERRlock: return EDEADLK; case ERRfilexists: return EEXIST; case 87: return 0; /* Unknown error!! */ /* This next error seems to occur on an mv when * the destination exists */ case 183: return EEXIST; default: return EIO; } else if (errcls == ERRSRV) switch (error) { case ERRerror: return ENFILE; case ERRbadpw: return EINVAL; case ERRbadtype: return EIO; case ERRaccess: return EACCES; default: return EIO; } else if (errcls == ERRHRD) switch (error) { case ERRnowrite: return EROFS; case ERRbadunit: return ENODEV; case ERRnotready: return EUCLEAN; case ERRbadcmd: return EIO; case ERRdata: return EIO; case ERRbadreq: return ERANGE; case ERRbadshare: return ETXTBSY; case ERRlock: return EDEADLK; default: return EIO; } else if (errcls == ERRCMD) return EIO; return 0; } #if DEBUG_SMB > 0 static char print_char(char c) { if ((c < ' ') || (c > '~')) return '.'; return c; } static void smb_dump_packet(byte *packet) { int i, j, len; int errcls, error; errcls = (int)packet[9]; error = (int)(int)(packet[11]|packet[12]<<8); printk("smb_len = %d valid = %d \n", len = smb_len(packet), smb_valid_packet(packet)); printk("smb_cmd = %d smb_wct = %d smb_bcc = %d\n", packet[8], SMB_WCT(packet), SMB_BCC(packet)); printk("smb_rcls = %d smb_err = %d\n", errcls, error); if (errcls) { smb_printerr(errcls, error); printk("\n"); } if (len > 100) len = 100; for (i = 0; i < len; i += 10) { printk("%03d:", i); for (j = i; j < i+10; j++) if (j < len) printk("%02x ", packet[j]); else printk(" "); printk(": "); for (j = i; j < i+10; j++) if (j < len) printk("%c", print_char(packet[j])); printk("\n"); } } #endif static void smb_lock_server(struct smb_server *server) { while (server->lock) sleep_on(&server->wait); server->lock = 1; } static void smb_unlock_server(struct smb_server *server) { if (server->lock != 1) { printk("smb_unlock_server: was not locked!\n"); } server->lock = 0; wake_up(&server->wait); } /* smb_request_ok: We expect the server to be locked. Then we do the request and check the answer completely. When smb_request_ok returns 0, you can be quite sure that everything went well. When the answer is <=0, the returned number is a valid unix errno. */ static int smb_request_ok(struct smb_server *s, int command, int wct, int bcc) { int result = 0; s->rcls = 0; s->err = 0; if (smb_request(s) < 0) { DPRINTK("smb_request failed\n"); result = -EIO; } else if (smb_valid_packet(s->packet) != 0) { DPRINTK("not a valid packet!\n"); result = -EIO; } else if (s->rcls != 0) { result = -smb_errno(s->rcls, s->err); } else if (smb_verify(s->packet, command, wct, bcc) != 0) { DPRINTK("smb_verify failed\n"); result = -EIO; } return result; } /* smb_retry: This function should be called when smb_request_ok has indicated an error. If the error was indicated because the connection was killed, we try to reconnect. If smb_retry returns 0, the error was indicated for another reason, so a retry would not be of any use. */ static int smb_retry(struct smb_server *server) { if (server->state != CONN_INVALID) { return 0; } if (smb_release(server) < 0) { DPRINTK("smb_retry: smb_release failed\n"); server->state = CONN_RETRIED; return 0; } if(smb_proc_reconnect(server) < 0) { DPRINTK("smb_proc_reconnect failed\n"); server->state = CONN_RETRIED; return 0; } server->state = CONN_VALID; return 1; } static int smb_request_ok_unlock(struct smb_server *s, int command, int wct, int bcc) { int result = smb_request_ok(s, command, wct, bcc); smb_unlock_server(s); return result; } /* smb_setup_header: We completely set up the packet. You only have to insert the command-specific fields */ static byte * smb_setup_header(struct smb_server *server, byte command, word wct, word bcc) { dword xmit_len = SMB_HEADER_LEN + wct * sizeof(word) + bcc + 2; byte *p = server->packet; byte *buf = server->packet; p = smb_encode_smb_length(p, xmit_len); BSET(p,0,0xff); BSET(p,1,'S'); BSET(p,2,'M'); BSET(p,3,'B'); BSET(p,4,command); p += 5; memset(p, '\0', 19); p += 19; p += 8; WSET(buf, smb_tid, server->tid); WSET(buf, smb_pid, server->pid); WSET(buf, smb_uid, server->server_uid); WSET(buf, smb_mid, server->mid); if (server->protocol > PROTOCOL_CORE) { BSET(buf, smb_flg, 0x8); WSET(buf, smb_flg2, 0x3); } *p++ = wct; /* wct */ p += 2*wct; WSET(p, 0, bcc); return p+2; } /* smb_setup_header_exclusive waits on server->lock and locks the server, when it's free. You have to unlock it manually when you're finished with server->packet! */ static byte * smb_setup_header_exclusive(struct smb_server *server, byte command, word wct, word bcc) { smb_lock_server(server); return smb_setup_header(server, command, wct, bcc); } /*****************************************************************************/ /* */ /* File operation section. */ /* */ /*****************************************************************************/ int smb_proc_open(struct smb_server *server, const char *pathname, int len, struct smb_dirent *entry) { int error; char* p; char* buf = server->packet; const word o_attr = aSYSTEM | aHIDDEN | aDIR; DPRINTK("smb_proc_open: path=%s\n", pathname); smb_lock_server(server); if (entry->opened != 0) { /* Somebody else opened the file while we slept */ smb_unlock_server(server); return 0; } retry: p = smb_setup_header(server, SMBopen, 2, 2 + len); WSET(buf, smb_vwv0, 0x42); /* read/write */ WSET(buf, smb_vwv1, o_attr); smb_encode_ascii(p, pathname, len); if ((error = smb_request_ok(server, SMBopen, 7, 0)) != 0) { if (smb_retry(server)) { goto retry; } if (error != -EACCES) { smb_unlock_server(server); return error; } p = smb_setup_header(server, SMBopen, 2, 2 + len); WSET(buf, smb_vwv0, 0x40); /* read only */ WSET(buf, smb_vwv1, o_attr); smb_encode_ascii(p, pathname, len); if ((error = smb_request_ok(server, SMBopen, 7, 0)) != 0) { if (smb_retry(server)) { goto retry; } smb_unlock_server(server); return error; } } /* We should now have data in vwv[0..6]. */ entry->fileid = WVAL(buf, smb_vwv0); entry->attr = WVAL(buf, smb_vwv1); entry->ctime = entry->atime = entry->mtime = local2utc(DVAL(buf, smb_vwv2)); entry->size = DVAL(buf, smb_vwv4); entry->access = WVAL(buf, smb_vwv6); entry->opened = 1; entry->access &= 3; smb_unlock_server(server); DPRINTK("smb_proc_open: entry->access = %d\n", entry->access); return 0; } /* smb_proc_close: in finfo->mtime we can send a modification time to the server */ int smb_proc_close(struct smb_server *server, __u16 fileid, __u32 mtime) { char *buf = server->packet; smb_setup_header_exclusive(server, SMBclose, 3, 0); WSET(buf, smb_vwv0, fileid); DSET(buf, smb_vwv1, utc2local(mtime)); return smb_request_ok_unlock(server, SMBclose, 0, 0); } /* In smb_proc_read and smb_proc_write we do not retry, because the file-id would not be valid after a reconnection. */ /* smb_proc_read: fs indicates if it should be copied with memcpy_tofs. */ int smb_proc_read(struct smb_server *server, struct smb_dirent *finfo, off_t offset, long count, char *data, int fs) { word returned_count, data_len; char *buf = server->packet; int error; smb_setup_header_exclusive(server, SMBread, 5, 0); WSET(buf, smb_vwv0, finfo->fileid); WSET(buf, smb_vwv1, count); DSET(buf, smb_vwv2, offset); WSET(buf, smb_vwv4, 0); if ((error = smb_request_ok(server, SMBread, 5, -1)) < 0) { smb_unlock_server(server); return error; } returned_count = WVAL(buf, smb_vwv0); smb_decode_data(SMB_BUF(server->packet), data, &data_len, fs); smb_unlock_server(server); if (returned_count != data_len) { printk("smb_proc_read: Warning, returned_count != data_len\n"); printk("smb_proc_read: ret_c=%d, data_len=%d\n", returned_count, data_len); } return data_len; } /* count must be <= 65535. No error number is returned. A result of 0 indicates an error, which has to be investigated by a normal read call. */ int smb_proc_read_raw(struct smb_server *server, struct smb_dirent *finfo, off_t offset, long count, char *data) { char *buf = server->packet; int result; if ((count <= 0) || (count > 65535)) { return -EINVAL; } smb_setup_header_exclusive(server, SMBreadbraw, 8, 0); WSET(buf, smb_vwv0, finfo->fileid); DSET(buf, smb_vwv1, offset); WSET(buf, smb_vwv3, count); WSET(buf, smb_vwv4, 0); DSET(buf, smb_vwv5, 0); result = smb_request_read_raw(server, data, count); smb_unlock_server(server); return result; } int smb_proc_write(struct smb_server *server, struct smb_dirent *finfo, off_t offset, int count, const char *data) { int res = 0; char *buf = server->packet; byte *p; p = smb_setup_header_exclusive(server, SMBwrite, 5, count + 3); WSET(buf, smb_vwv0, finfo->fileid); WSET(buf, smb_vwv1, count); DSET(buf, smb_vwv2, offset); WSET(buf, smb_vwv4, 0); *p++ = 1; WSET(p, 0, count); memcpy_fromfs(p+2, data, count); if ((res = smb_request_ok(server, SMBwrite, 1, 0)) >= 0) { res = WVAL(buf, smb_vwv0); } smb_unlock_server(server); return res; } /* count must be <= 65535 */ int smb_proc_write_raw(struct smb_server *server, struct smb_dirent *finfo, off_t offset, long count, const char *data) { char *buf = server->packet; int result; if ((count <= 0) || (count > 65535)) { return -EINVAL; } smb_setup_header_exclusive(server, SMBwritebraw, 11, 0); WSET(buf, smb_vwv0, finfo->fileid); WSET(buf, smb_vwv1, count); WSET(buf, smb_vwv2, 0); /* reserved */ DSET(buf, smb_vwv3, offset); DSET(buf, smb_vwv5, 0); /* timeout */ WSET(buf, smb_vwv7, 1); /* send final result response */ DSET(buf, smb_vwv8, 0); /* reserved */ WSET(buf, smb_vwv10, 0); /* no data in this buf */ WSET(buf, smb_vwv11, 0); /* no data in this buf */ result = smb_request_ok(server, SMBwritebraw, 1, 0); DPRINTK("smb_proc_write_raw: first request returned %d\n", result); if (result < 0) { smb_unlock_server(server); return result; } result = smb_request_write_raw(server, data, count); DPRINTK("smb_proc_write_raw: raw request returned %d\n", result); if (result > 0) { /* We have to do the checks of smb_request_ok here as well */ if (smb_valid_packet(server->packet) != 0) { DPRINTK("not a valid packet!\n"); result = -EIO; } else if (server->rcls != 0) { result = -smb_errno(server->rcls, server->err); } else if (smb_verify(server->packet, SMBwritec,1,0) != 0) { DPRINTK("smb_verify failed\n"); result = -EIO; } } smb_unlock_server(server); return result; } /* smb_proc_create: We expect entry->attr & entry->ctime to be set. */ int smb_proc_create(struct smb_server *server, const char *path, int len, struct smb_dirent *entry) { int error; char *p; char *buf = server->packet; __u16 fileid; smb_lock_server(server); retry: p = smb_setup_header(server, SMBcreate, 3, len + 2); WSET(buf, smb_vwv0, entry->attr); DSET(buf, smb_vwv1, utc2local(entry->ctime)); smb_encode_ascii(p, path, len); if ((error = smb_request_ok(server, SMBcreate, 1, 0)) < 0) { if (smb_retry(server)) { goto retry; } smb_unlock_server(server); return error; } entry->opened = 0; fileid = WVAL(buf, smb_vwv0); smb_unlock_server(server); smb_proc_close(server, fileid, 0); return 0; } int smb_proc_mv(struct smb_server *server, const char *opath, const int olen, const char *npath, const int nlen) { char *p; char *buf = server->packet; int result; smb_lock_server(server); retry: p = smb_setup_header(server, SMBmv, 1, olen + nlen + 4); WSET(buf, smb_vwv0, 0); p = smb_encode_ascii(p, opath, olen); smb_encode_ascii(p, npath, olen); if ((result = smb_request_ok(server, SMBmv, 0, 0)) < 0) { if (smb_retry(server)) { goto retry; } } smb_unlock_server(server); return result; } int smb_proc_mkdir(struct smb_server *server, const char *path, const int len) { char *p; int result; smb_lock_server(server); retry: p = smb_setup_header(server, SMBmkdir, 0, 2 + len); smb_encode_ascii(p, path, len); if ((result = smb_request_ok(server, SMBmkdir, 0, 0)) < 0) { if (smb_retry(server)) { goto retry; } } smb_unlock_server(server); return result; } int smb_proc_rmdir(struct smb_server *server, const char *path, const int len) { char *p; int result; smb_lock_server(server); retry: p = smb_setup_header(server, SMBrmdir, 0, 2 + len); smb_encode_ascii(p, path, len); if ((result = smb_request_ok(server, SMBrmdir, 0, 0)) < 0) { if (smb_retry(server)) { goto retry; } } smb_unlock_server(server); return result; } int smb_proc_unlink(struct smb_server *server, const char *path, const int len) { char *p; char *buf = server->packet; int result; smb_lock_server(server); retry: p = smb_setup_header(server, SMBunlink, 1, 2 + len); WSET(buf, smb_vwv0, 0); smb_encode_ascii(p, path, len); if ((result = smb_request_ok(server, SMBunlink, 0, 0)) < 0) { if (smb_retry(server)) { goto retry; } } smb_unlock_server(server); return result; } int smb_proc_trunc(struct smb_server *server, word fid, dword length) { char *p; char *buf = server->packet; int result; smb_lock_server(server); retry: p = smb_setup_header(server, SMBwrite, 5, 3); WSET(buf, smb_vwv0, fid); WSET(buf, smb_vwv1, 0); DSET(buf, smb_vwv2, length); WSET(buf, smb_vwv4, 0); smb_encode_ascii(p, "", 0); if ((result = smb_request_ok(server, SMBwrite, 1, 0)) < 0) { if (smb_retry(server)) { goto retry; } } smb_unlock_server(server); return result; } static char * smb_decode_dirent(char *p, struct smb_dirent *entry) { p += SMB_STATUS_SIZE; /* reserved (search_status) */ entry->attr = BVAL(p, 0); entry->mtime = entry->atime = entry->ctime = date_dos2unix(WVAL(p, 1), WVAL(p, 3)); entry->size = DVAL(p, 5); memcpy(entry->path, p+9, 13); DDPRINTK("smb_decode_dirent: path = %s\n", entry->path); return p + 22; } /* This routine is used to read in directory entries from the network. Note that it is for short directory name seeks, i.e.: protocol < PROTOCOL_LANMAN2 */ static int smb_proc_readdir_short(struct smb_server *server, struct inode *dir, int fpos, int cache_size, struct smb_dirent *entry) { char *p; char *buf; int error; int result; int i; int first, total_count; struct smb_dirent *current_entry; word bcc; word count; char status[SMB_STATUS_SIZE]; int entries_asked = (server->max_xmit - 100) / SMB_DIRINFO_SIZE; int dirlen = strlen(SMB_FINFO(dir)->path); char mask[dirlen + 5]; strcpy(mask, SMB_FINFO(dir)->path); strcat(mask, "\\*.*"); DPRINTK("SMB call readdir %d @ %d\n", cache_size, fpos); DPRINTK(" mask = %s\n", mask); buf = server->packet; smb_lock_server(server); retry: first = 1; total_count = 0; current_entry = entry; while (1) { if (first == 1) { p = smb_setup_header(server, SMBsearch, 2, 5 + strlen(mask)); WSET(buf, smb_vwv0, entries_asked); WSET(buf, smb_vwv1, aDIR); p = smb_encode_ascii(p, mask, strlen(mask)); *p ++ = 5; p = smb_encode_word(p, 0); } else { p = smb_setup_header(server, SMBsearch, 2, 5 + SMB_STATUS_SIZE); WSET(buf, smb_vwv0, entries_asked); WSET(buf, smb_vwv1, aDIR); p = smb_encode_ascii(p, "", 0); p = smb_encode_vblock(p, status, SMB_STATUS_SIZE, 0); } if ((error = smb_request_ok(server, SMBsearch, 1, -1)) < 0) { if ( (server->rcls == ERRDOS) && (server->err == ERRnofiles)) { result = total_count - fpos; goto unlock_return; } else { if (smb_retry(server)) { goto retry; } result = error; goto unlock_return; } } p = SMB_VWV(server->packet); p = smb_decode_word(p, &count); /* vwv[0] = count-returned */ p = smb_decode_word(p, &bcc); first = 0; if (count <= 0) { result = total_count - fpos; goto unlock_return; } if (bcc != count * SMB_DIRINFO_SIZE + 3) { result = -EIO; goto unlock_return; } p += 3; /* Skipping VBLOCK header (5, length lo, length hi). */ /* Read the last entry into the status field. */ memcpy(status, SMB_BUF(server->packet) + 3 + (count - 1) * SMB_DIRINFO_SIZE, SMB_STATUS_SIZE); /* Now we are ready to parse smb directory entries. */ for (i = 0; i < count; i ++) { if (total_count < fpos) { p += SMB_DIRINFO_SIZE; DDPRINTK("smb_proc_readdir: skipped entry.\n"); DDPRINTK(" total_count = %d\n" " i = %d, fpos = %d\n", total_count, i, fpos); } else if (total_count >= fpos + cache_size) { result = total_count - fpos; goto unlock_return; } else { p = smb_decode_dirent(p, current_entry); current_entry->f_pos = total_count; DDPRINTK("smb_proc_readdir: entry->f_pos = " "%lu\n", entry->f_pos); current_entry += 1; } total_count += 1; } } unlock_return: smb_unlock_server(server); return result; } /* interpret a long filename structure - this is mostly guesses at the moment. The length of the structure is returned. The structure of a long filename depends on the info level. 260 is used by NT and 2 is used by OS/2. */ static char * smb_decode_long_dirent(char *p, struct smb_dirent *finfo, int level) { char *result; if (finfo) { /* I have to set times to 0 here, because I do not have specs about this for all info levels. */ finfo->ctime = finfo->mtime = finfo->atime = 0; } switch (level) { case 1: /* OS/2 understands this */ if (finfo) { DPRINTK("received entry\n"); strcpy(finfo->path,p+27); finfo->len = strlen(finfo->path); finfo->size = DVAL(p,16); finfo->attr = BVAL(p,24); finfo->ctime = date_dos2unix(WVAL(p, 6), WVAL(p, 4)); finfo->atime = date_dos2unix(WVAL(p, 10), WVAL(p, 8)); finfo->mtime = date_dos2unix(WVAL(p, 14), WVAL(p, 12)); } result = p + 28 + BVAL(p,26); break; case 2: /* this is what OS/2 uses */ if (finfo) { strcpy(finfo->path,p+31); finfo->len = strlen(finfo->path); finfo->size = DVAL(p,16); finfo->attr = BVAL(p,24); #if 0 finfo->atime = make_unix_date2(p+8); finfo->mtime = make_unix_date2(p+12); #endif } result = p + 32 + BVAL(p,30); break; case 260: /* NT uses this, but also accepts 2 */ result = p + WVAL(p,0); if (finfo) { int namelen; p += 4; /* next entry offset */ p += 4; /* fileindex */ /* finfo->ctime = interpret_filetime(p);*/ p += 8; /* finfo->atime = interpret_filetime(p);*/ p += 8; p += 8; /* write time */ /* finfo->mtime = interpret_filetime(p);*/ p += 8; finfo->size = DVAL(p,0); p += 8; p += 8; /* alloc size */ finfo->attr = BVAL(p,0); p += 4; namelen = min(DVAL(p,0), SMB_MAXNAMELEN); p += 4; p += 4; /* EA size */ p += 2; /* short name len? */ p += 24; /* short name? */ strncpy(finfo->path,p,namelen); finfo->len = namelen; } break; default: DPRINTK("Unknown long filename format %d\n",level); result = p + WVAL(p,0); } return result; } int smb_proc_readdir_long(struct smb_server *server, struct inode *dir, int fpos, int cache_size, struct smb_dirent *entry) { int max_matches = 64; /* this should actually be based on the maxxmit */ /* NT uses 260, OS/2 uses 2. Both accept 1. */ int info_level = 1; char *p; char *lastname; int lastname_len; int i; int first, total_count; struct smb_dirent *current_entry; char *resp_data; char *resp_param; int resp_data_len = 0; int resp_param_len=0; int attribute = aSYSTEM | aHIDDEN | aDIR; int result; int ff_resume_key = 0; int ff_searchcount=0; int ff_eos=0; int ff_lastname=0; int ff_dir_handle=0; int loop_count = 0; int dirlen = strlen(SMB_FINFO(dir)->path) + 3; char *mask; mask = smb_kmalloc(dirlen, GFP_KERNEL); if (mask == NULL) { printk("smb_proc_readdir_long: Memory allocation failed\n"); return -ENOMEM; } strcpy(mask, SMB_FINFO(dir)->path); strcat(mask, "\\*"); DPRINTK("SMB call lreaddir %d @ %d\n", cache_size, fpos); DPRINTK(" mask = %s\n", mask); resp_param = NULL; resp_data = NULL; smb_lock_server(server); retry: first = 1; total_count = 0; current_entry = entry; while (ff_eos == 0) { int masklen = strlen(mask); unsigned char *outbuf = server->packet; loop_count += 1; if (loop_count > 200) { printk("smb_proc_readdir_long: " "Looping in FIND_NEXT??\n"); break; } smb_setup_header(server, SMBtrans2, 15, 5 + 12 + masklen + 1); WSET(outbuf,smb_tpscnt,12 + masklen +1); WSET(outbuf,smb_tdscnt,0); WSET(outbuf,smb_mprcnt,10); WSET(outbuf,smb_mdrcnt,TRANS2_MAX_TRANSFER); WSET(outbuf,smb_msrcnt,0); WSET(outbuf,smb_flags,0); DSET(outbuf,smb_timeout,0); WSET(outbuf,smb_pscnt,WVAL(outbuf,smb_tpscnt)); WSET(outbuf,smb_psoff,((SMB_BUF(outbuf)+3) - outbuf)-4); WSET(outbuf,smb_dscnt,0); WSET(outbuf,smb_dsoff,0); WSET(outbuf,smb_suwcnt,1); WSET(outbuf,smb_setup0, first == 1 ? TRANSACT2_FINDFIRST : TRANSACT2_FINDNEXT); p = SMB_BUF(outbuf); *p++=0; /* put in a null smb_name */ *p++='D'; *p++ = ' '; /* this was added because OS/2 does it */ if (first != 0) { WSET(p,0,attribute); /* attribute */ WSET(p,2,max_matches); /* max count */ WSET(p,4,8+4+2); /* resume required + close on end + continue */ WSET(p,6,info_level); DSET(p,8,0); p += 12; strncpy(p, mask, masklen); p += masklen; *p++ = 0; *p++ = 0; } else { DPRINTK("hand=0x%X resume=%d ff_lastname=%d mask=%s\n", ff_dir_handle,ff_resume_key,ff_lastname,mask); WSET(p,0,ff_dir_handle); WSET(p,2,max_matches); /* max count */ WSET(p,4,info_level); DSET(p,6,ff_resume_key); /* ff_resume_key */ WSET(p,10,8+4+2); /* resume required + close on end + continue */ p += 12; strncpy(p, mask, masklen); p += masklen; *p++ = 0; *p++ = 0; } result = smb_trans2_request(server, &resp_data_len,&resp_param_len, &resp_data,&resp_param); if (result < 0) { if (smb_retry(server)) { goto retry; } DPRINTK("smb_proc_readdir_long: " "got error from trans2_request\n"); break; } if (server->rcls != 0) { result = -EIO; break; } /* parse out some important return info */ p = resp_param; if (first != 0) { ff_dir_handle = WVAL(p,0); ff_searchcount = WVAL(p,2); ff_eos = WVAL(p,4); ff_lastname = WVAL(p,8); } else { ff_searchcount = WVAL(p,0); ff_eos = WVAL(p,2); ff_lastname = WVAL(p,6); } if (ff_searchcount == 0) break; /* point to the data bytes */ p = resp_data; /* we might need the lastname for continuations */ lastname = ""; lastname_len = 0; if (ff_lastname > 0) { switch(info_level) { case 260: lastname = p + ff_lastname; lastname_len = resp_data_len - ff_lastname; ff_resume_key = 0; break; case 1: lastname = p + ff_lastname + 1; lastname_len = strlen(lastname); ff_resume_key = 0; break; } } /* Increase size of mask, if it is too small */ i = strlen(lastname) + 1; if (i > dirlen) { smb_kfree_s(mask, 0); dirlen = i; mask = smb_kmalloc(dirlen, GFP_KERNEL); if (mask == NULL) { printk("smb_proc_readdir_long: " "Memory allocation failed\n"); result = -ENOMEM; break; } } strncpy(mask, lastname, lastname_len); mask[lastname_len] = '\0'; /* Now we are ready to parse smb directory entries. */ for (i = 0; i < ff_searchcount; i ++) { if (total_count < fpos) { p = smb_decode_long_dirent(p, NULL, info_level); DPRINTK("smb_proc_readdir: skipped entry.\n"); DDPRINTK(" total_count = %d\n" " i = %d, fpos = %d\n", total_count, i, fpos); } else if (total_count >= fpos + cache_size) { goto finished; } else { p = smb_decode_long_dirent(p, current_entry, info_level); current_entry->f_pos = total_count; DDPRINTK("smb_proc_readdir: entry->f_pos = " "%lu\n", entry->f_pos); current_entry += 1; } total_count += 1; } if (resp_data != NULL) { smb_kfree_s(resp_data, 0); resp_data = NULL; } if (resp_param != NULL) { smb_kfree_s(resp_param, 0); resp_param = NULL; } DPRINTK("received %d entries (eos=%d resume=%d)\n", ff_searchcount,ff_eos,ff_resume_key); first = 0; } finished: if (mask != NULL) smb_kfree_s(mask, 0); if (resp_data != NULL) { smb_kfree_s(resp_data, 0); resp_data = NULL; } if (resp_param != NULL) { smb_kfree_s(resp_param, 0); resp_param = NULL; } smb_unlock_server(server); return total_count - fpos; } int smb_proc_readdir(struct smb_server *server, struct inode *dir, int fpos, int cache_size, struct smb_dirent *entry) { if (server->protocol >= PROTOCOL_LANMAN2) return smb_proc_readdir_long(server, dir, fpos, cache_size, entry); else return smb_proc_readdir_short(server, dir, fpos, cache_size, entry); } static int smb_proc_getattr_core(struct smb_server *server, const char *path, int len, struct smb_dirent *entry) { int result; char *p; char *buf = server->packet; smb_lock_server(server); DDPRINTK("smb_proc_getattr: %s\n", path); retry: p = smb_setup_header(server, SMBgetatr, 0, 2 + len); smb_encode_ascii(p, path, len); if ((result = smb_request_ok(server, SMBgetatr, 10, 0)) < 0) { if (smb_retry(server)) { goto retry; } smb_unlock_server(server); return result; } entry->attr = WVAL(buf, smb_vwv0); entry->ctime = entry->atime = /* The server only tells us 1 time */ entry->mtime = local2utc(DVAL(buf, smb_vwv1)); entry->size = DVAL(buf, smb_vwv3); smb_unlock_server(server); return 0; } /* smb_proc_getattrE: entry->fid must be valid */ static int smb_proc_getattrE(struct smb_server *server, struct smb_dirent *entry) { char* buf = server->packet; int result; smb_setup_header_exclusive(server, SMBgetattrE, 1, 0); WSET(buf, smb_vwv0, entry->fileid); if ((result = smb_request_ok(server, SMBgetattrE, 11, 0)) != 0) { smb_unlock_server(server); return result; } entry->ctime = date_dos2unix(WVAL(buf, smb_vwv1), WVAL(buf, smb_vwv0)); entry->atime = date_dos2unix(WVAL(buf, smb_vwv3), WVAL(buf, smb_vwv2)); entry->mtime = date_dos2unix(WVAL(buf, smb_vwv5), WVAL(buf, smb_vwv4)); entry->size = DVAL(buf, smb_vwv6); entry->attr = WVAL(buf, smb_vwv10); smb_unlock_server(server); return 0; } int smb_proc_getattr(struct smb_server *server, const char *path, int len, struct smb_dirent *entry) { if (server->protocol >= PROTOCOL_LANMAN1) { int result = 0; struct smb_dirent temp_entry; memset(&temp_entry, 0, sizeof(temp_entry)); if ((result=smb_proc_open(server,path,len, &temp_entry)) < 0) { /* We cannot open directories, so we try to use the core variant */ return smb_proc_getattr_core(server,path,len,entry); } if ((result=smb_proc_getattrE(server, &temp_entry)) >= 0) { entry->attr = temp_entry.attr; entry->atime = temp_entry.atime; entry->mtime = temp_entry.mtime; entry->ctime = temp_entry.ctime; entry->size = temp_entry.size; } smb_proc_close(server, temp_entry.fileid, temp_entry.mtime); return result; } else { return smb_proc_getattr_core(server, path, len, entry); } } /* In core protocol, there is only 1 time to be set, we use entry->mtime, to make touch work. */ static int smb_proc_setattr_core(struct smb_server *server, const char *path, int len, struct smb_dirent *new_finfo) { char *p; char *buf = server->packet; int result; smb_lock_server(server); retry: p = smb_setup_header(server, SMBsetatr, 8, 4 + len); WSET(buf, smb_vwv0, new_finfo->attr); DSET(buf, smb_vwv1, utc2local(new_finfo->mtime)); p = smb_encode_ascii(p, path, len); p = smb_encode_ascii(p, "", 0); if ((result = smb_request_ok(server, SMBsetatr, 0, 0)) < 0) { if (smb_retry(server)) { goto retry; } } smb_unlock_server(server); return result; } /* smb_proc_setattrE: we do not retry here, because we rely on fid, which would not be valid after a retry. */ static int smb_proc_setattrE(struct smb_server *server, word fid, struct smb_dirent *new_entry) { char *buf = server->packet; word date, time; smb_setup_header_exclusive(server, SMBsetattrE, 7, 0); WSET(buf, smb_vwv0, fid); date_unix2dos(new_entry->ctime, &time, &date); WSET(buf, smb_vwv1, date); WSET(buf, smb_vwv2, time); date_unix2dos(new_entry->atime, &time, &date); WSET(buf, smb_vwv3, date); WSET(buf, smb_vwv4, time); date_unix2dos(new_entry->mtime, &time, &date); WSET(buf, smb_vwv5, date); WSET(buf, smb_vwv6, time); return smb_request_ok_unlock(server, SMBsetattrE, 0, 0); } /* smb_proc_setattr: for protocol >= LANMAN1 we expect the file to be opened for writing. */ int smb_proc_setattr(struct smb_server *server, struct inode *inode, struct smb_dirent *new_finfo) { struct smb_dirent *finfo = SMB_FINFO(inode); int result; if (server->protocol >= PROTOCOL_LANMAN1) { if ((result = smb_make_open(inode, O_RDWR)) < 0) return result; return smb_proc_setattrE(server, finfo->fileid, new_finfo); } else { return smb_proc_setattr_core(server, finfo->path, finfo->len, new_finfo); } } int smb_proc_dskattr(struct super_block *super, struct smb_dskattr *attr) { int error; char *p; struct smb_server *server = &(SMB_SBP(super)->s_server); smb_lock_server(server); retry: smb_setup_header(server, SMBdskattr, 0, 0); if ((error = smb_request_ok(server, SMBdskattr, 5, 0)) < 0) { if (smb_retry(server)) { goto retry; } smb_unlock_server(server); return error; } p = SMB_VWV(server->packet); p = smb_decode_word(p, &attr->total); p = smb_decode_word(p, &attr->allocblocks); p = smb_decode_word(p, &attr->blocksize); p = smb_decode_word(p, &attr->free); smb_unlock_server(server); return 0; } /*****************************************************************************/ /* */ /* Mount/umount operations. */ /* */ /*****************************************************************************/ struct smb_prots { enum smb_protocol prot; const char *name; }; /* smb_proc_reconnect: We expect the server to be locked, so that you can call the routine from within smb_retry. The socket must be created, like after a user-level socket()-call. It may not be connected. */ int smb_proc_reconnect(struct smb_server *server) { struct smb_prots prots[] = { { PROTOCOL_CORE, "PC NETWORK PROGRAM 1.0"}, { PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"}, #ifdef LANMAN1 { PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"}, { PROTOCOL_LANMAN1,"LANMAN1.0"}, #endif #ifdef CONFIG_SMB_LONG #ifdef LANMAN2 { PROTOCOL_LANMAN2,"LM1.2X002"}, #endif #ifdef NT1 { PROTOCOL_NT1,"NT LM 0.12"}, { PROTOCOL_NT1,"NT LANMAN 1.0"}, #endif #endif {-1, NULL} }; char dev[] = "A:"; int i, plength; int max_xmit = 1024; /* Space needed for first request. */ int given_max_xmit = server->m.max_xmit; int result; byte *p; if ((result = smb_connect(server)) < 0) { DPRINTK("smb_proc_reconnect: could not smb_connect\n"); goto fail; } /* Here we assume that the connection is valid */ server->state = CONN_VALID; if (server->packet != NULL) { smb_kfree_s(server->packet, server->max_xmit); } server->packet = smb_kmalloc(max_xmit, GFP_KERNEL); if (server->packet == NULL) { printk("smb_proc_connect: No memory! Bailing out.\n"); result = -ENOMEM; goto fail; } server->max_xmit = max_xmit; /* * Start with an RFC1002 session request packet. */ p = server->packet + 4; p = smb_name_mangle(p, server->m.server_name); p = smb_name_mangle(p, server->m.client_name); smb_encode_smb_length(server->packet, (void *)p - (void *)(server->packet)); server->packet[0] = 0x81; /* SESSION REQUEST */ if (smb_catch_keepalive(server) < 0) { printk("smb_proc_connect: could not catch_keepalives\n"); } if ((result = smb_request(server)) < 0) { printk("smb_proc_connect: Failed to send SESSION REQUEST.\n"); smb_dont_catch_keepalive(server); goto fail; } if (server->packet[0] != 0x82) { printk("smb_proc_connect: Did not receive positive response " "(err = %x)\n", server->packet[0]); smb_dont_catch_keepalive(server); #if DEBUG_SMB > 0 smb_dump_packet(server->packet); #endif result = -EIO; goto fail; } DPRINTK("smb_proc_connect: Passed SESSION REQUEST.\n"); /* Now we are ready to send a SMB Negotiate Protocol packet. */ memset(server->packet, 0, SMB_HEADER_LEN); plength = 0; for (i = 0; prots[i].name != NULL; i++) { plength += strlen(prots[i].name) + 2; } smb_setup_header(server, SMBnegprot, 0, plength); p = SMB_BUF(server->packet); for (i = 0; prots[i].name != NULL; i++) { p = smb_encode_dialect(p,prots[i].name, strlen(prots[i].name)); } if ((result = smb_request_ok(server, SMBnegprot, 1, -1)) < 0) { printk("smb_proc_connect: Failure requesting SMBnegprot\n"); smb_dont_catch_keepalive(server); goto fail; } else { DDPRINTK("smb_proc_connect: Request SMBnegprot.."); } DDPRINTK("Verified!\n"); p = SMB_VWV(server->packet); p = smb_decode_word(p, (word *)&i); server->protocol = prots[i].prot; DPRINTK("smb_proc_connect: Server wants %s protocol.\n", prots[i].name); if (server->protocol >= PROTOCOL_LANMAN1) { word passlen = strlen(server->m.password); word userlen = strlen(server->m.username); DPRINTK("smb_proc_connect: password = %s\n", server->m.password); DPRINTK("smb_proc_connect: usernam = %s\n", server->m.username); DPRINTK("smb_proc_connect: blkmode = %d\n", WVAL(server->packet, smb_vwv5)); if (server->protocol >= PROTOCOL_NT1) { server->maxxmt = DVAL(server->packet,smb_vwv3+1); server->maxmux = WVAL(server->packet, smb_vwv1+1); server->maxvcs = WVAL(server->packet, smb_vwv2+1); server->blkmode= DVAL(server->packet, smb_vwv9+1); server->sesskey= DVAL(server->packet, smb_vwv7+1); } else { server->maxxmt = WVAL(server->packet, smb_vwv2); server->maxmux = WVAL(server->packet, smb_vwv3); server->maxvcs = WVAL(server->packet, smb_vwv4); server->blkmode= WVAL(server->packet, smb_vwv5); server->sesskey= DVAL(server->packet, smb_vwv6); } if (server->protocol >= PROTOCOL_NT1) { char *workgroup = "WORKGROUP"; char *OS_id = "Unix"; char *client_id = "ksmbfs"; smb_setup_header(server, SMBsesssetupX, 13, 5 + userlen + passlen + strlen(workgroup) + strlen(OS_id) + strlen(client_id)); WSET(server->packet, smb_vwv0, 0x00ff); WSET(server->packet, smb_vwv1, 0); WSET(server->packet, smb_vwv2, given_max_xmit); WSET(server->packet, smb_vwv3, 2); WSET(server->packet, smb_vwv4, server->pid); DSET(server->packet, smb_vwv5, server->sesskey); WSET(server->packet, smb_vwv7, passlen + 1); WSET(server->packet, smb_vwv8, 0); WSET(server->packet, smb_vwv9, 0); p = SMB_BUF(server->packet); strcpy(p, server->m.password); p += passlen + 1; strcpy(p, server->m.username); p += userlen + 1; strcpy(p, workgroup); p += strlen(p) + 1; strcpy(p, OS_id); p += strlen(p) + 1; strcpy(p, client_id); } else { smb_setup_header(server, SMBsesssetupX, 10, 2 + userlen + passlen); WSET(server->packet, smb_vwv0, 0x00ff); WSET(server->packet, smb_vwv1, 0); WSET(server->packet, smb_vwv2, given_max_xmit); WSET(server->packet, smb_vwv3, 2); WSET(server->packet, smb_vwv4, server->pid); DSET(server->packet, smb_vwv5, server->sesskey); WSET(server->packet, smb_vwv7, passlen + 1); WSET(server->packet, smb_vwv8, 0); WSET(server->packet, smb_vwv9, 0); p = SMB_BUF(server->packet); strcpy(p, server->m.password); p += passlen + 1; strcpy(p, server->m.username); } if ((result = smb_request_ok(server,SMBsesssetupX,3,0)) < 0) { DPRINTK("smb_proc_connect: SMBsessetupX failed\n"); smb_dont_catch_keepalive(server); goto fail; } smb_decode_word(server->packet+32, &(server->server_uid)); } else { server->maxxmt = 0; server->maxmux = 0; server->maxvcs = 0; server->blkmode = 0; server->sesskey = 0; } /* Fine! We have a connection, send a tcon message. */ smb_setup_header(server, SMBtcon, 0, 6 + strlen(server->m.service) + strlen(server->m.password) + strlen(dev)); p = SMB_BUF(server->packet); p = smb_encode_ascii(p, server->m.service, strlen(server->m.service)); p = smb_encode_ascii(p,server->m.password, strlen(server->m.password)); p = smb_encode_ascii(p, dev, strlen(dev)); if ((result = smb_request_ok(server, SMBtcon, 2, 0)) < 0) { DPRINTK("smb_proc_connect: SMBtcon not verified.\n"); smb_dont_catch_keepalive(server); goto fail; } DDPRINTK("OK! Managed to set up SMBtcon!\n"); p = SMB_VWV(server->packet); p = smb_decode_word(p, &server->max_xmit); if (server->max_xmit > given_max_xmit) server->max_xmit = given_max_xmit; p = smb_decode_word(p, &server->tid); /* Ok, everything is fine. max_xmit does not include */ /* the TCP-SMB header of 4 bytes. */ server->max_xmit += 4; DPRINTK("max_xmit = %d, tid = %d\n", server->max_xmit, server->tid); /* Now make a new packet with the correct size. */ smb_kfree_s(server->packet, max_xmit); server->packet = smb_kmalloc(server->max_xmit, GFP_KERNEL); if (server->packet == NULL) { printk("smb_proc_connect: No memory left in end of " "connection phase :-(\n"); smb_dont_catch_keepalive(server); goto fail; } DPRINTK("smb_proc_connect: Normal exit\n"); return 0; fail: server->state = CONN_INVALID; return result; } /* smb_proc_reconnect: server->packet is allocated with server->max_xmit bytes if and only if we return >= 0 */ int smb_proc_connect(struct smb_server *server) { int result; smb_lock_server(server); result = smb_proc_reconnect(server); if ((result < 0) && (server->packet != NULL)) { smb_kfree_s(server->packet, server->max_xmit); server->packet = NULL; } smb_unlock_server(server); return result; } int smb_proc_disconnect(struct smb_server *server) { smb_setup_header_exclusive(server, SMBtdis, 0, 0); return smb_request_ok_unlock(server, SMBtdis, 0, 0); } /* error code stuff - put together by Merik Karman merik@blackadder.dsh.oz.au */ #if DEBUG_SMB > 0 typedef struct { char *name; int code; char *message; } err_code_struct; /* Dos Error Messages */ err_code_struct dos_msgs[] = { { "ERRbadfunc",1,"Invalid function."}, { "ERRbadfile",2,"File not found."}, { "ERRbadpath",3,"Directory invalid."}, { "ERRnofids",4,"No file descriptors available"}, { "ERRnoaccess",5,"Access denied."}, { "ERRbadfid",6,"Invalid file handle."}, { "ERRbadmcb",7,"Memory control blocks destroyed."}, { "ERRnomem",8,"Insufficient server memory to perform the requested function."}, { "ERRbadmem",9,"Invalid memory block address."}, { "ERRbadenv",10,"Invalid environment."}, { "ERRbadformat",11,"Invalid format."}, { "ERRbadaccess",12,"Invalid open mode."}, { "ERRbaddata",13,"Invalid data."}, { "ERR",14,"reserved."}, { "ERRbaddrive",15,"Invalid drive specified."}, { "ERRremcd",16,"A Delete Directory request attempted to remove the server's current directory."}, { "ERRdiffdevice",17,"Not same device."}, { "ERRnofiles",18,"A File Search command can find no more files matching the specified criteria."}, { "ERRbadshare",32,"The sharing mode specified for an Open conflicts with existing FIDs on the file."}, { "ERRlock",33,"A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process."}, { "ERRfilexists",80,"The file named in a Create Directory, Make New File or Link request already exists."}, { "ERRbadpipe",230,"Pipe invalid."}, { "ERRpipebusy",231,"All instances of the requested pipe are busy."}, { "ERRpipeclosing",232,"Pipe close in progress."}, { "ERRnotconnected",233,"No process on other end of pipe."}, { "ERRmoredata",234,"There is more data to be returned."}, { NULL,-1,NULL}}; /* Server Error Messages */ err_code_struct server_msgs[] = { { "ERRerror",1,"Non-specific error code."}, { "ERRbadpw",2,"Bad password - name/password pair in a Tree Connect or Session Setup are invalid."}, { "ERRbadtype",3,"reserved."}, { "ERRaccess",4,"The requester does not have the necessary access rights within the specified context for the requested function. The context is defined by the TID or the UID."}, { "ERRinvnid",5,"The tree ID (TID) specified in a command was invalid."}, { "ERRinvnetname",6,"Invalid network name in tree connect."}, { "ERRinvdevice",7,"Invalid device - printer request made to non-printer connection or non-printer request made to printer connection."}, { "ERRqfull",49,"Print queue full (files) -- returned by open print file."}, { "ERRqtoobig",50,"Print queue full -- no space."}, { "ERRqeof",51,"EOF on print queue dump."}, { "ERRinvpfid",52,"Invalid print file FID."}, { "ERRsmbcmd",64,"The server did not recognize the command received."}, { "ERRsrverror",65,"The server encountered an internal error, e.g., system file unavailable."}, { "ERRfilespecs",67,"The file handle (FID) and pathname parameters contained an invalid combination of values."}, { "ERRreserved",68,"reserved."}, { "ERRbadpermits",69,"The access permissions specified for a file or directory are not a valid combination. The server cannot set the requested attribute."}, { "ERRreserved",70,"reserved."}, { "ERRsetattrmode",71,"The attribute mode in the Set File Attribute request is invalid."}, { "ERRpaused",81,"Server is paused."}, { "ERRmsgoff",82,"Not receiving messages."}, { "ERRnoroom",83,"No room to buffer message."}, { "ERRrmuns",87,"Too many remote user names."}, { "ERRtimeout",88,"Operation timed out."}, { "ERRnoresource",89,"No resources currently available for request."}, { "ERRtoomanyuids",90,"Too many UIDs active on this session."}, { "ERRbaduid",91,"The UID is not known as a valid ID on this session."}, { "ERRusempx",250,"Temp unable to support Raw, use MPX mode."}, { "ERRusestd",251,"Temp unable to support Raw, use standard read/write."}, { "ERRcontmpx",252,"Continue in MPX mode."}, { "ERRreserved",253,"reserved."}, { "ERRreserved",254,"reserved."}, { "ERRnosupport",0xFFFF,"Function not supported."}, { NULL,-1,NULL}}; /* Hard Error Messages */ err_code_struct hard_msgs[] = { { "ERRnowrite",19,"Attempt to write on write-protected diskette."}, { "ERRbadunit",20,"Unknown unit."}, { "ERRnotready",21,"Drive not ready."}, { "ERRbadcmd",22,"Unknown command."}, { "ERRdata",23,"Data error (CRC)."}, { "ERRbadreq",24,"Bad request structure length."}, { "ERRseek",25 ,"Seek error."}, { "ERRbadmedia",26,"Unknown media type."}, { "ERRbadsector",27,"Sector not found."}, { "ERRnopaper",28,"Printer out of paper."}, { "ERRwrite",29,"Write fault."}, { "ERRread",30,"Read fault."}, { "ERRgeneral",31,"General failure."}, { "ERRbadshare",32,"A open conflicts with an existing open."}, { "ERRlock",33,"A Lock request conflicted with an existing lock or specified an invalid mode, or an Unlock requested attempted to remove a lock held by another process."}, { "ERRwrongdisk",34,"The wrong disk was found in a drive."}, { "ERRFCBUnavail",35,"No FCBs are available to process request."}, { "ERRsharebufexc",36,"A sharing buffer has been exceeded."}, { NULL,-1,NULL} }; struct { int code; char *class; err_code_struct *err_msgs; } err_classes[] = { { 0,"SUCCESS",NULL}, { 0x01,"ERRDOS",dos_msgs}, { 0x02,"ERRSRV",server_msgs}, { 0x03,"ERRHRD",hard_msgs}, { 0x04,"ERRXOS",NULL}, { 0xE1,"ERRRMX1",NULL}, { 0xE2,"ERRRMX2",NULL}, { 0xE3,"ERRRMX3",NULL}, { 0xFF,"ERRCMD",NULL}, { -1,NULL,NULL} }; void smb_printerr(int class, int num) { int i,j; err_code_struct *err; for (i=0; err_classes[i].class; i++) { if (err_classes[i].code != class) continue; if (!err_classes[i].err_msgs) { printk("%s - %d", err_classes[i].class, num); return; } err = err_classes[i].err_msgs; for (j=0; err[j].name; j++) { if (num != err[j].code) continue; printk("%s - %s (%s)", err_classes[i].class, err[j].name, err[j].message); return; } } printk("Unknown error - (%d,%d)", class, num); return; } #endif /* DEBUG_SMB > 0 */ |