diff options
Diffstat (limited to 'source4/passdb/pdb_smbpasswd.c')
| -rw-r--r-- | source4/passdb/pdb_smbpasswd.c | 1615 |
1 files changed, 0 insertions, 1615 deletions
diff --git a/source4/passdb/pdb_smbpasswd.c b/source4/passdb/pdb_smbpasswd.c deleted file mode 100644 index abb37c4bd7..0000000000 --- a/source4/passdb/pdb_smbpasswd.c +++ /dev/null @@ -1,1615 +0,0 @@ -/* - * Unix SMB/CIFS implementation. - * SMB parameters and setup - * Copyright (C) Andrew Tridgell 1992-1998 - * Modified by Jeremy Allison 1995. - * Modified by Gerald (Jerry) Carter 2000-2001 - * Modified by Andrew Bartlett 2002. - * - * 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., 675 - * Mass Ave, Cambridge, MA 02139, USA. - */ - -#include "includes.h" - -#undef DBGC_CLASS -#define DBGC_CLASS DBGC_PASSDB - -/* - smb_passwd is analogous to sam_passwd used everywhere - else. However, smb_passwd is limited to the information - stored by an smbpasswd entry - */ - -struct smb_passwd -{ - BOOL smb_userid_set; /* this is actually the unix uid_t */ - uint32 smb_userid; /* this is actually the unix uid_t */ - const char *smb_name; /* username string */ - - const unsigned char *smb_passwd; /* Null if no password */ - const unsigned char *smb_nt_passwd; /* Null if no password */ - - uint16 acct_ctrl; /* account info (ACB_xxxx bit-mask) */ - time_t pass_last_set_time; /* password last set time */ -}; - -struct smbpasswd_privates -{ - /* used for maintain locks on the smbpasswd file */ - int pw_file_lock_depth; - - /* Global File pointer */ - FILE *pw_file; - - /* formerly static variables */ - struct smb_passwd pw_buf; - pstring user_name; - unsigned char smbpwd[16]; - unsigned char smbntpwd[16]; - - /* retrive-once info */ - const char *smbpasswd_file; - - BOOL permit_non_unix_accounts; - - uint32 low_nua_userid; - uint32 high_nua_userid; - -}; - -enum pwf_access_type { PWF_READ, PWF_UPDATE, PWF_CREATE }; - -/*************************************************************** - Lock an fd. Abandon after waitsecs seconds. -****************************************************************/ - -static BOOL pw_file_lock(int fd, int type, int secs, int *plock_depth) -{ - if (fd < 0) - return False; - - if(*plock_depth == 0) { - if (!do_file_lock(fd, secs, type)) { - DEBUG(10,("pw_file_lock: locking file failed, error = %s.\n", - strerror(errno))); - return False; - } - } - - (*plock_depth)++; - - return True; -} - -/*************************************************************** - Unlock an fd. Abandon after waitsecs seconds. -****************************************************************/ - -static BOOL pw_file_unlock(int fd, int *plock_depth) -{ - BOOL ret=True; - - if (fd == 0 || *plock_depth == 0) { - return True; - } - - if(*plock_depth == 1) - ret = do_file_lock(fd, 5, F_UNLCK); - - if (*plock_depth > 0) - (*plock_depth)--; - - if(!ret) - DEBUG(10,("pw_file_unlock: unlocking file failed, error = %s.\n", - strerror(errno))); - return ret; -} - - -/************************************************************** - Intialize a smb_passwd struct - *************************************************************/ - -static void pdb_init_smb(struct smb_passwd *user) -{ - if (user == NULL) - return; - ZERO_STRUCTP (user); - - user->pass_last_set_time = (time_t)0; -} - -/*************************************************************** - Internal fn to enumerate the smbpasswd list. Returns a void pointer - to ensure no modification outside this module. Checks for atomic - rename of smbpasswd file on update or create once the lock has - been granted to prevent race conditions. JRA. -****************************************************************/ - -static FILE *startsmbfilepwent(const char *pfile, enum pwf_access_type type, int *lock_depth) -{ - FILE *fp = NULL; - const char *open_mode = NULL; - int race_loop = 0; - int lock_type = F_RDLCK; - - if (!*pfile) { - DEBUG(0, ("startsmbfilepwent: No SMB password file set\n")); - return (NULL); - } - - switch(type) { - case PWF_READ: - open_mode = "rb"; - lock_type = F_RDLCK; - break; - case PWF_UPDATE: - open_mode = "r+b"; - lock_type = F_WRLCK; - break; - case PWF_CREATE: - /* - * Ensure atomic file creation. - */ - { - int i, fd = -1; - - for(i = 0; i < 5; i++) { - if((fd = sys_open(pfile, O_CREAT|O_TRUNC|O_EXCL|O_RDWR, 0600))!=-1) - break; - sys_usleep(200); /* Spin, spin... */ - } - if(fd == -1) { - DEBUG(0,("startsmbfilepwent_internal: too many race conditions creating file %s\n", pfile)); - return NULL; - } - close(fd); - open_mode = "r+b"; - lock_type = F_WRLCK; - break; - } - } - - for(race_loop = 0; race_loop < 5; race_loop++) { - DEBUG(10, ("startsmbfilepwent_internal: opening file %s\n", pfile)); - - if((fp = sys_fopen(pfile, open_mode)) == NULL) { - DEBUG(0, ("startsmbfilepwent_internal: unable to open file %s. Error was %s\n", pfile, strerror(errno) )); - return NULL; - } - - if (!pw_file_lock(fileno(fp), lock_type, 5, lock_depth)) { - DEBUG(0, ("startsmbfilepwent_internal: unable to lock file %s. Error was %s\n", pfile, strerror(errno) )); - fclose(fp); - return NULL; - } - - /* - * Only check for replacement races on update or create. - * For read we don't mind if the data is one record out of date. - */ - - if(type == PWF_READ) { - break; - } else { - SMB_STRUCT_STAT sbuf1, sbuf2; - - /* - * Avoid the potential race condition between the open and the lock - * by doing a stat on the filename and an fstat on the fd. If the - * two inodes differ then someone did a rename between the open and - * the lock. Back off and try the open again. Only do this 5 times to - * prevent infinate loops. JRA. - */ - - if (sys_stat(pfile,&sbuf1) != 0) { - DEBUG(0, ("startsmbfilepwent_internal: unable to stat file %s. Error was %s\n", pfile, strerror(errno))); - pw_file_unlock(fileno(fp), lock_depth); - fclose(fp); - return NULL; - } - - if (sys_fstat(fileno(fp),&sbuf2) != 0) { - DEBUG(0, ("startsmbfilepwent_internal: unable to fstat file %s. Error was %s\n", pfile, strerror(errno))); - pw_file_unlock(fileno(fp), lock_depth); - fclose(fp); - return NULL; - } - - if( sbuf1.st_ino == sbuf2.st_ino) { - /* No race. */ - break; - } - - /* - * Race occurred - back off and try again... - */ - - pw_file_unlock(fileno(fp), lock_depth); - fclose(fp); - } - } - - if(race_loop == 5) { - DEBUG(0, ("startsmbfilepwent_internal: too many race conditions opening file %s\n", pfile)); - return NULL; - } - - /* Set a buffer to do more efficient reads */ - setvbuf(fp, (char *)NULL, _IOFBF, 1024); - - /* Make sure it is only rw by the owner */ - if(fchmod(fileno(fp), S_IRUSR|S_IWUSR) == -1) { - DEBUG(0, ("startsmbfilepwent_internal: failed to set 0600 permissions on password file %s. \ -Error was %s\n.", pfile, strerror(errno) )); - pw_file_unlock(fileno(fp), lock_depth); - fclose(fp); - return NULL; - } - - /* We have a lock on the file. */ - return fp; -} - -/*************************************************************** - End enumeration of the smbpasswd list. -****************************************************************/ -static void endsmbfilepwent(FILE *fp, int *lock_depth) -{ - if (!fp) { - return; - } - - pw_file_unlock(fileno(fp), lock_depth); - fclose(fp); - DEBUG(7, ("endsmbfilepwent_internal: closed password file.\n")); -} - -/************************************************************************* - Routine to return the next entry in the smbpasswd list. - *************************************************************************/ - -static struct smb_passwd *getsmbfilepwent(struct smbpasswd_privates *smbpasswd_state, FILE *fp) -{ - /* Static buffers we will return. */ - struct smb_passwd *pw_buf = &smbpasswd_state->pw_buf; - char *user_name = smbpasswd_state->user_name; - unsigned char *smbpwd = smbpasswd_state->smbpwd; - unsigned char *smbntpwd = smbpasswd_state->smbntpwd; - char linebuf[256]; - unsigned char c; - unsigned char *p; - long uidval; - size_t linebuf_len; - - if(fp == NULL) { - DEBUG(0,("getsmbfilepwent: Bad password file pointer.\n")); - return NULL; - } - - pdb_init_smb(pw_buf); - - pw_buf->acct_ctrl = ACB_NORMAL; - - /* - * Scan the file, a line at a time and check if the name matches. - */ - while (!feof(fp)) { - linebuf[0] = '\0'; - - fgets(linebuf, 256, fp); - if (ferror(fp)) { - return NULL; - } - - /* - * Check if the string is terminated with a newline - if not - * then we must keep reading and discard until we get one. - */ - if ((linebuf_len = strlen(linebuf)) == 0) - continue; - - if (linebuf[linebuf_len - 1] != '\n') { - c = '\0'; - while (!ferror(fp) && !feof(fp)) { - c = fgetc(fp); - if (c == '\n') - break; - } - } else - linebuf[linebuf_len - 1] = '\0'; - -#ifdef DEBUG_PASSWORD - DEBUG(100, ("getsmbfilepwent: got line |%s|\n", linebuf)); -#endif - if ((linebuf[0] == 0) && feof(fp)) { - DEBUG(4, ("getsmbfilepwent: end of file reached\n")); - break; - } - /* - * The line we have should be of the form :- - * - * username:uid:32hex bytes:[Account type]:LCT-12345678....other flags presently - * ignored.... - * - * or, - * - * username:uid:32hex bytes:32hex bytes:[Account type]:LCT-12345678....ignored.... - * - * if Windows NT compatible passwords are also present. - * [Account type] is an ascii encoding of the type of account. - * LCT-(8 hex digits) is the time_t value of the last change time. - */ - - if (linebuf[0] == '#' || linebuf[0] == '\0') { - DEBUG(6, ("getsmbfilepwent: skipping comment or blank line\n")); - continue; - } - p = (unsigned char *) strchr_m(linebuf, ':'); - if (p == NULL) { - DEBUG(0, ("getsmbfilepwent: malformed password entry (no :)\n")); - continue; - } - /* - * As 256 is shorter than a pstring we don't need to check - * length here - if this ever changes.... - */ - SMB_ASSERT(sizeof(pstring) > sizeof(linebuf)); - - strncpy(user_name, linebuf, PTR_DIFF(p, linebuf)); - user_name[PTR_DIFF(p, linebuf)] = '\0'; - - /* Get smb uid. */ - - p++; /* Go past ':' */ - - if(*p == '-') { - DEBUG(0, ("getsmbfilepwent: uids in the smbpasswd file must not be negative.\n")); - continue; - } - - if (!isdigit(*p)) { - DEBUG(0, ("getsmbfilepwent: malformed password entry (uid not number)\n")); - continue; - } - - uidval = atoi((char *) p); - - while (*p && isdigit(*p)) - p++; - - if (*p != ':') { - DEBUG(0, ("getsmbfilepwent: malformed password entry (no : after uid)\n")); - continue; - } - - pw_buf->smb_name = user_name; - pw_buf->smb_userid = uidval; - - /* - * Now get the password value - this should be 32 hex digits - * which are the ascii representations of a 16 byte string. - * Get two at a time and put them into the password. - */ - - /* Skip the ':' */ - p++; - - if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) { - DEBUG(0, ("getsmbfilepwent: malformed password entry (passwd too short)\n")); - continue; - } - - if (p[32] != ':') { - DEBUG(0, ("getsmbfilepwent: malformed password entry (no terminating :)\n")); - continue; - } - - if (!strncasecmp((char *) p, "NO PASSWORD", 11)) { - pw_buf->smb_passwd = NULL; - pw_buf->acct_ctrl |= ACB_PWNOTREQ; - } else { - if (*p == '*' || *p == 'X') { - /* NULL LM password */ - pw_buf->smb_passwd = NULL; - DEBUG(10, ("getsmbfilepwent: LM password for user %s invalidated\n", user_name)); - } else if (pdb_gethexpwd((char *)p, smbpwd)) { - pw_buf->smb_passwd = smbpwd; - } else { - pw_buf->smb_passwd = NULL; - DEBUG(0, ("getsmbfilepwent: Malformed Lanman password entry (non hex chars)\n")); - } - } - - /* - * Now check if the NT compatible password is - * available. - */ - pw_buf->smb_nt_passwd = NULL; - - p += 33; /* Move to the first character of the line after - the lanman password. */ - if ((linebuf_len >= (PTR_DIFF(p, linebuf) + 33)) && (p[32] == ':')) { - if (*p != '*' && *p != 'X') { - if(pdb_gethexpwd((char *)p,smbntpwd)) - pw_buf->smb_nt_passwd = smbntpwd; - } - p += 33; /* Move to the first character of the line after - the NT password. */ - } - - DEBUG(5,("getsmbfilepwent: returning passwd entry for user %s, uid %ld\n", - user_name, uidval)); - - if (*p == '[') - { - unsigned char *end_p = (unsigned char *)strchr_m((char *)p, ']'); - pw_buf->acct_ctrl = pdb_decode_acct_ctrl((char*)p); - - /* Must have some account type set. */ - if(pw_buf->acct_ctrl == 0) - pw_buf->acct_ctrl = ACB_NORMAL; - - /* Now try and get the last change time. */ - if(end_p) - p = end_p + 1; - if(*p == ':') { - p++; - if(*p && (StrnCaseCmp((char *)p, "LCT-", 4)==0)) { - int i; - p += 4; - for(i = 0; i < 8; i++) { - if(p[i] == '\0' || !isxdigit(p[i])) - break; - } - if(i == 8) { - /* - * p points at 8 characters of hex digits - - * read into a time_t as the seconds since - * 1970 that the password was last changed. - */ - pw_buf->pass_last_set_time = (time_t)strtol((char *)p, NULL, 16); - } - } - } - } else { - /* 'Old' style file. Fake up based on user name. */ - /* - * Currently trust accounts are kept in the same - * password file as 'normal accounts'. If this changes - * we will have to fix this code. JRA. - */ - if(pw_buf->smb_name[strlen(pw_buf->smb_name) - 1] == '$') { - pw_buf->acct_ctrl &= ~ACB_NORMAL; - pw_buf->acct_ctrl |= ACB_WSTRUST; - } - } - - return pw_buf; - } - - DEBUG(5,("getsmbfilepwent: end of file reached.\n")); - return NULL; -} - -/************************************************************************ - Create a new smbpasswd entry - malloced space returned. -*************************************************************************/ - -static char *format_new_smbpasswd_entry(const struct smb_passwd *newpwd) -{ - int new_entry_length; - char *new_entry; - char *p; - - new_entry_length = strlen(newpwd->smb_name) + 1 + 15 + 1 + 32 + 1 + 32 + 1 + NEW_PW_FORMAT_SPACE_PADDED_LEN + 1 + 13 + 2; - - if((new_entry = (char *)malloc( new_entry_length )) == NULL) { - DEBUG(0, ("format_new_smbpasswd_entry: Malloc failed adding entry for user %s.\n", newpwd->smb_name )); - return NULL; - } - - slprintf(new_entry, new_entry_length - 1, "%s:%u:", newpwd->smb_name, (unsigned)newpwd->smb_userid); - - p = new_entry+strlen(new_entry); - - pdb_sethexpwd(p, newpwd->smb_passwd, newpwd->acct_ctrl); - - p+=strlen(p); *p = ':'; p++; - - pdb_sethexpwd(p, newpwd->smb_nt_passwd, newpwd->acct_ctrl); - - p+=strlen(p); *p = ':'; p++; - - /* Add the account encoding and the last change time. */ - slprintf((char *)p, new_entry_length - 1 - (p - new_entry), "%s:LCT-%08X:\n", - pdb_encode_acct_ctrl(newpwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN), - (uint32)newpwd->pass_last_set_time); - - return new_entry; -} - -/************************************************************************ - Routine to add an entry to the smbpasswd file. -*************************************************************************/ - -static BOOL add_smbfilepwd_entry(struct smbpasswd_privates *smbpasswd_state, struct smb_passwd *newpwd) -{ - const char *pfile = smbpasswd_state->smbpasswd_file; - struct smb_passwd *pwd = NULL; - FILE *fp = NULL; - int wr_len; - int fd; - size_t new_entry_length; - char *new_entry; - SMB_OFF_T offpos; - uint32 max_found_uid = 0; - - /* Open the smbpassword file - for update. */ - fp = startsmbfilepwent(pfile, PWF_UPDATE, &(smbpasswd_state->pw_file_lock_depth)); - - if (fp == NULL && errno == ENOENT) { - /* Try again - create. */ - fp = startsmbfilepwent(pfile, PWF_CREATE, &(smbpasswd_state->pw_file_lock_depth)); - } - - if (fp == NULL) { - DEBUG(0, ("add_smbfilepwd_entry: unable to open file.\n")); - return False; - } - - /* - * Scan the file, a line at a time and check if the name matches. - */ - - while ((pwd = getsmbfilepwent(smbpasswd_state, fp)) != NULL) - { - if (strequal(newpwd->smb_name, pwd->smb_name)) - { - DEBUG(0, ("add_smbfilepwd_entry: entry with name %s already exists\n", pwd->smb_name)); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return False; - } - - /* Look for a free uid for use in non-unix accounts */ - if (pwd->smb_userid > max_found_uid) { - max_found_uid = pwd->smb_userid; - } - } - - /* Ok - entry doesn't exist. We can add it */ - - /* Account not in /etc/passwd hack!!! */ - if (!newpwd->smb_userid_set) { - if (!smbpasswd_state->permit_non_unix_accounts) { - DEBUG(0, ("add_smbfilepwd_entry: cannot add account %s without unix identity\n", newpwd->smb_name)); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return False; - } - - if (max_found_uid < smbpasswd_state->low_nua_userid) { - newpwd->smb_userid = smbpasswd_state->low_nua_userid; - newpwd->smb_userid_set = True; - } else if (max_found_uid >= smbpasswd_state->high_nua_userid) { - DEBUG(0, ("add_smbfilepwd_entry: cannot add machine %s, no uids are free! \n", newpwd->smb_name)); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return False; - } else { - newpwd->smb_userid = max_found_uid + 1; - newpwd->smb_userid_set = True; - } - } - - - /* Create a new smb passwd entry and set it to the given password. */ - /* - * The add user write needs to be atomic - so get the fd from - * the fp and do a raw write() call. - */ - fd = fileno(fp); - - if((offpos = sys_lseek(fd, 0, SEEK_END)) == -1) - { - DEBUG(0, ("add_smbfilepwd_entry(sys_lseek): Failed to add entry for user %s to file %s. \ -Error was %s\n", newpwd->smb_name, pfile, strerror(errno))); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return False; - } - - if((new_entry = format_new_smbpasswd_entry(newpwd)) == NULL) - { - DEBUG(0, ("add_smbfilepwd_entry(malloc): Failed to add entry for user %s to file %s. \ -Error was %s\n", newpwd->smb_name, pfile, strerror(errno))); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return False; - } - - new_entry_length = strlen(new_entry); - -#ifdef DEBUG_PASSWORD - DEBUG(100, ("add_smbfilepwd_entry(%d): new_entry_len %d made line |%s|", - fd, new_entry_length, new_entry)); -#endif - - if ((wr_len = write(fd, new_entry, new_entry_length)) != new_entry_length) - { - DEBUG(0, ("add_smbfilepwd_entry(write): %d Failed to add entry for user %s to file %s. \ -Error was %s\n", wr_len, newpwd->smb_name, pfile, strerror(errno))); - - /* Remove the entry we just wrote. */ - if(sys_ftruncate(fd, offpos) == -1) - { - DEBUG(0, ("add_smbfilepwd_entry: ERROR failed to ftruncate file %s. \ -Error was %s. Password file may be corrupt ! Please examine by hand !\n", - newpwd->smb_name, strerror(errno))); - } - - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - free(new_entry); - return False; - } - - free(new_entry); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return True; -} - -/************************************************************************ - Routine to search the smbpasswd file for an entry matching the username. - and then modify its password entry. We can't use the startsmbpwent()/ - getsmbpwent()/endsmbpwent() interfaces here as we depend on looking - in the actual file to decide how much room we have to write data. - override = False, normal - override = True, override XXXXXXXX'd out password or NO PASS -************************************************************************/ - -static BOOL mod_smbfilepwd_entry(struct smbpasswd_privates *smbpasswd_state, const struct smb_passwd* pwd) -{ - /* Static buffers we will return. */ - pstring user_name; - - char linebuf[256]; - char readbuf[1024]; - unsigned char c; - fstring ascii_p16; - fstring encode_bits; - unsigned char *p = NULL; - size_t linebuf_len = 0; - FILE *fp; - int lockfd; - const char *pfile = smbpasswd_state->smbpasswd_file; - BOOL found_entry = False; - BOOL got_pass_last_set_time = False; - - SMB_OFF_T pwd_seekpos = 0; - - int i; - int wr_len; - int fd; - - if (!*pfile) { - DEBUG(0, ("No SMB password file set\n")); - return False; - } - DEBUG(10, ("mod_smbfilepwd_entry: opening file %s\n", pfile)); - - fp = sys_fopen(pfile, "r+"); - - if (fp == NULL) { - DEBUG(0, ("mod_smbfilepwd_entry: unable to open file %s\n", pfile)); - return False; - } - /* Set a buffer to do more efficient reads */ - setvbuf(fp, readbuf, _IOFBF, sizeof(readbuf)); - - lockfd = fileno(fp); - - if (!pw_file_lock(lockfd, F_WRLCK, 5, &(smbpasswd_state->pw_file_lock_depth))) { - DEBUG(0, ("mod_smbfilepwd_entry: unable to lock file %s\n", pfile)); - fclose(fp); - return False; - } - - /* Make sure it is only rw by the owner */ - chmod(pfile, 0600); - - /* We have a write lock on the file. */ - /* - * Scan the file, a line at a time and check if the name matches. - */ - while (!feof(fp)) { - pwd_seekpos = sys_ftell(fp); - - linebuf[0] = '\0'; - - fgets(linebuf, sizeof(linebuf), fp); - if (ferror(fp)) { - pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - /* - * Check if the string is terminated with a newline - if not - * then we must keep reading and discard until we get one. - */ - linebuf_len = strlen(linebuf); - if (linebuf[linebuf_len - 1] != '\n') { - c = '\0'; - while (!ferror(fp) && !feof(fp)) { - c = fgetc(fp); - if (c == '\n') { - break; - } - } - } else { - linebuf[linebuf_len - 1] = '\0'; - } - -#ifdef DEBUG_PASSWORD - DEBUG(100, ("mod_smbfilepwd_entry: got line |%s|\n", linebuf)); -#endif - - if ((linebuf[0] == 0) && feof(fp)) { - DEBUG(4, ("mod_smbfilepwd_entry: end of file reached\n")); - break; - } - - /* - * The line we have should be of the form :- - * - * username:uid:[32hex bytes]:....other flags presently - * ignored.... - * - * or, - * - * username:uid:[32hex bytes]:[32hex bytes]:[attributes]:LCT-XXXXXXXX:...ignored. - * - * if Windows NT compatible passwords are also present. - */ - - if (linebuf[0] == '#' || linebuf[0] == '\0') { - DEBUG(6, ("mod_smbfilepwd_entry: skipping comment or blank line\n")); - continue; - } - - p = (unsigned char *) strchr_m(linebuf, ':'); - - if (p == NULL) { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no :)\n")); - continue; - } - - /* - * As 256 is shorter than a pstring we don't need to check - * length here - if this ever changes.... - */ - - SMB_ASSERT(sizeof(user_name) > sizeof(linebuf)); - - strncpy(user_name, linebuf, PTR_DIFF(p, linebuf)); - user_name[PTR_DIFF(p, linebuf)] = '\0'; - if (strequal(user_name, pwd->smb_name)) { - found_entry = True; - break; - } - } - - if (!found_entry) { - pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - - DEBUG(2, ("Cannot update entry for user %s, as they don't exist in the smbpasswd file!\n", - pwd->smb_name)); - return False; - } - - DEBUG(6, ("mod_smbfilepwd_entry: entry exists\n")); - - /* User name matches - get uid and password */ - p++; /* Go past ':' */ - - if (!isdigit(*p)) { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (uid not number)\n")); - pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - while (*p && isdigit(*p)) - p++; - if (*p != ':') { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no : after uid)\n")); - pw_file_unlock(lockfd, &(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - /* - * Now get the password value - this should be 32 hex digits - * which are the ascii representations of a 16 byte string. - * Get two at a time and put them into the password. - */ - p++; - - /* Record exact password position */ - pwd_seekpos += PTR_DIFF(p, linebuf); - - if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (passwd too short)\n")); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return (False); - } - - if (p[32] != ':') { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no terminating :)\n")); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - /* Now check if the NT compatible password is - available. */ - p += 33; /* Move to the first character of the line after - the lanman password. */ - if (linebuf_len < (PTR_DIFF(p, linebuf) + 33)) { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (passwd too short)\n")); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return (False); - } - - if (p[32] != ':') { - DEBUG(0, ("mod_smbfilepwd_entry: malformed password entry (no terminating :)\n")); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - /* - * Now check if the account info and the password last - * change time is available. - */ - p += 33; /* Move to the first character of the line after - the NT password. */ - - if (*p == '[') { - - i = 0; - encode_bits[i++] = *p++; - while((linebuf_len > PTR_DIFF(p, linebuf)) && (*p != ']')) - encode_bits[i++] = *p++; - - encode_bits[i++] = ']'; - encode_bits[i++] = '\0'; - - if(i == NEW_PW_FORMAT_SPACE_PADDED_LEN) { - /* - * We are using a new format, space padded - * acct ctrl field. Encode the given acct ctrl - * bits into it. - */ - fstrcpy(encode_bits, pdb_encode_acct_ctrl(pwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN)); - } else { - DEBUG(0,("mod_smbfilepwd_entry: Using old smbpasswd format. This is no longer supported.!\n")); - DEBUG(0,("mod_smbfilepwd_entry: No changes made, failing.!\n")); - return False; - } - - /* Go past the ']' */ - if(linebuf_len > PTR_DIFF(p, linebuf)) - p++; - - if((linebuf_len > PTR_DIFF(p, linebuf)) && (*p == ':')) { - p++; - - /* We should be pointing at the LCT entry. */ - if((linebuf_len > (PTR_DIFF(p, linebuf) + 13)) && (StrnCaseCmp((char *)p, "LCT-", 4) == 0)) { - - p += 4; - for(i = 0; i < 8; i++) { - if(p[i] == '\0' || !isxdigit(p[i])) - break; - } - if(i == 8) { - /* - * p points at 8 characters of hex digits - - * read into a time_t as the seconds since - * 1970 that the password was last changed. - */ - got_pass_last_set_time = True; - } /* i == 8 */ - } /* *p && StrnCaseCmp() */ - } /* p == ':' */ - } /* p == '[' */ - - /* Entry is correctly formed. */ - - /* Create the 32 byte representation of the new p16 */ - pdb_sethexpwd(ascii_p16, pwd->smb_passwd, pwd->acct_ctrl); - - /* Add on the NT md4 hash */ - ascii_p16[32] = ':'; - wr_len = 66; - pdb_sethexpwd(ascii_p16+33, pwd->smb_nt_passwd, pwd->acct_ctrl); - ascii_p16[65] = ':'; - ascii_p16[66] = '\0'; /* null-terminate the string so that strlen works */ - - /* Add on the account info bits and the time of last - password change. */ - - if(got_pass_last_set_time) { - slprintf(&ascii_p16[strlen(ascii_p16)], - sizeof(ascii_p16)-(strlen(ascii_p16)+1), - "%s:LCT-%08X:", - encode_bits, (uint32)pwd->pass_last_set_time ); - wr_len = strlen(ascii_p16); - } - -#ifdef DEBUG_PASSWORD - DEBUG(100,("mod_smbfilepwd_entry: ")); - dump_data(100, ascii_p16, wr_len); -#endif - - if(wr_len > sizeof(linebuf)) { - DEBUG(0, ("mod_smbfilepwd_entry: line to write (%d) is too long.\n", wr_len+1)); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return (False); - } - - /* - * Do an atomic write into the file at the position defined by - * seekpos. - */ - - /* The mod user write needs to be atomic - so get the fd from - the fp and do a raw write() call. - */ - - fd = fileno(fp); - - if (sys_lseek(fd, pwd_seekpos - 1, SEEK_SET) != pwd_seekpos - 1) { - DEBUG(0, ("mod_smbfilepwd_entry: seek fail on file %s.\n", pfile)); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - /* Sanity check - ensure the areas we are writing are framed by ':' */ - if (read(fd, linebuf, wr_len+1) != wr_len+1) { - DEBUG(0, ("mod_smbfilepwd_entry: read fail on file %s.\n", pfile)); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - if ((linebuf[0] != ':') || (linebuf[wr_len] != ':')) { - DEBUG(0, ("mod_smbfilepwd_entry: check on passwd file %s failed.\n", pfile)); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - if (sys_lseek(fd, pwd_seekpos, SEEK_SET) != pwd_seekpos) { - DEBUG(0, ("mod_smbfilepwd_entry: seek fail on file %s.\n", pfile)); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - if (write(fd, ascii_p16, wr_len) != wr_len) { - DEBUG(0, ("mod_smbfilepwd_entry: write failed in passwd file %s\n", pfile)); - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return False; - } - - pw_file_unlock(lockfd,&(smbpasswd_state->pw_file_lock_depth)); - fclose(fp); - return True; -} - -/************************************************************************ - Routine to delete an entry in the smbpasswd file by name. -*************************************************************************/ - -static BOOL del_smbfilepwd_entry(struct smbpasswd_privates *smbpasswd_state, const char *name) -{ - const char *pfile = smbpasswd_state->smbpasswd_file; - pstring pfile2; - struct smb_passwd *pwd = NULL; - FILE *fp = NULL; - FILE *fp_write = NULL; - int pfile2_lockdepth = 0; - - slprintf(pfile2, sizeof(pfile2)-1, "%s.%u", pfile, (unsigned)getpid() ); - - /* - * Open the smbpassword file - for update. It needs to be update - * as we need any other processes to wait until we have replaced - * it. - */ - - if((fp = startsmbfilepwent(pfile, PWF_UPDATE, &(smbpasswd_state->pw_file_lock_depth))) == NULL) { - DEBUG(0, ("del_smbfilepwd_entry: unable to open file %s.\n", pfile)); - return False; - } - - /* - * Create the replacement password file. - */ - if((fp_write = startsmbfilepwent(pfile2, PWF_CREATE, &pfile2_lockdepth)) == NULL) { - DEBUG(0, ("del_smbfilepwd_entry: unable to open file %s.\n", pfile)); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - return False; - } - - /* - * Scan the file, a line at a time and check if the name matches. - */ - - while ((pwd = getsmbfilepwent(smbpasswd_state, fp)) != NULL) { - char *new_entry; - size_t new_entry_length; - - if (strequal(name, pwd->smb_name)) { - DEBUG(10, ("add_smbfilepwd_entry: found entry with name %s - deleting it.\n", name)); - continue; - } - - /* - * We need to copy the entry out into the second file. - */ - - if((new_entry = format_new_smbpasswd_entry(pwd)) == NULL) - { - DEBUG(0, ("del_smbfilepwd_entry(malloc): Failed to copy entry for user %s to file %s. \ -Error was %s\n", pwd->smb_name, pfile2, strerror(errno))); - unlink(pfile2); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - endsmbfilepwent(fp_write, &pfile2_lockdepth); - return False; - } - - new_entry_length = strlen(new_entry); - - if(fwrite(new_entry, 1, new_entry_length, fp_write) != new_entry_length) - { - DEBUG(0, ("del_smbfilepwd_entry(write): Failed to copy entry for user %s to file %s. \ -Error was %s\n", pwd->smb_name, pfile2, strerror(errno))); - unlink(pfile2); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - endsmbfilepwent(fp_write, &pfile2_lockdepth); - free(new_entry); - return False; - } - - free(new_entry); - } - - /* - * Ensure pfile2 is flushed before rename. - */ - - if(fflush(fp_write) != 0) - { - DEBUG(0, ("del_smbfilepwd_entry: Failed to flush file %s. Error was %s\n", pfile2, strerror(errno))); - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - endsmbfilepwent(fp_write,&pfile2_lockdepth); - return False; - } - - /* - * Do an atomic rename - then release the locks. - */ - - if(rename(pfile2,pfile) != 0) { - unlink(pfile2); - } - - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - endsmbfilepwent(fp_write,&pfile2_lockdepth); - return True; -} - -/********************************************************************* - Create a smb_passwd struct from a SAM_ACCOUNT. - We will not allocate any new memory. The smb_passwd struct - should only stay around as long as the SAM_ACCOUNT does. - ********************************************************************/ -static BOOL build_smb_pass (struct smb_passwd *smb_pw, const SAM_ACCOUNT *sampass) -{ - uid_t uid; - - if (sampass == NULL) - return False; - - ZERO_STRUCTP(smb_pw); - - if (!IS_SAM_UNIX_USER(sampass)) { - smb_pw->smb_userid_set = False; - DEBUG(5,("build_smb_pass: storing user without a UNIX uid or gid. \n")); - } else { - uint32 rid = pdb_get_user_rid(sampass); - smb_pw->smb_userid_set = True; - uid = pdb_get_uid(sampass); - - /* If the user specified a RID, make sure its able to be both stored and retreived */ - if (rid && rid != DOMAIN_USER_RID_GUEST && uid != fallback_pdb_user_rid_to_uid(rid)) { - DEBUG(0,("build_sam_pass: Failing attempt to store user with non-uid based user RID. \n")); - return False; - } - - smb_pw->smb_userid=uid; - } - - smb_pw->smb_name=(const char*)pdb_get_username(sampass); - - smb_pw->smb_passwd=pdb_get_lanman_passwd(sampass); - smb_pw->smb_nt_passwd=pdb_get_nt_passwd(sampass); - - smb_pw->acct_ctrl=pdb_get_acct_ctrl(sampass); - smb_pw->pass_last_set_time=pdb_get_pass_last_set_time(sampass); - -#if 0 - /* - * ifdef'out by JFM on 11/29/2001. - * this assertion is no longer valid - * and I don't understand the goal - * and doing the same thing with the group mapping code - * is hairy ! - * - * We just have the RID, in which SID is it valid ? - * our domain SID ? well known SID ? local SID ? - */ - - if (gid != pdb_group_rid_to_gid(pdb_get_group_rid(sampass))) { - DEBUG(0,("build_sam_pass: Failing attempt to store user with non-gid based primary group RID. \n")); - DEBUG(0,("build_sam_pass: %d %d %d. \n", *gid, pdb_group_rid_to_gid(pdb_get_group_rid(sampass)), pdb_get_group_rid(sampass))); - return False; - } -#endif - - return True; -} - -/********************************************************************* - Create a SAM_ACCOUNT from a smb_passwd struct - ********************************************************************/ -static BOOL build_sam_account(struct smbpasswd_privates *smbpasswd_state, - SAM_ACCOUNT *sam_pass, const struct smb_passwd *pw_buf) -{ - struct passwd *pwfile; - - if (sam_pass==NULL) { - DEBUG(5,("build_sam_account: SAM_ACCOUNT is NULL\n")); - return False; - } - - pwfile = getpwnam_alloc(pw_buf->smb_name); - if (pwfile == NULL) { - if ((smbpasswd_state->permit_non_unix_accounts) - && (pw_buf->smb_userid >= smbpasswd_state->low_nua_userid) - && (pw_buf->smb_userid <= smbpasswd_state->high_nua_userid)) { - - pdb_set_user_sid_from_rid(sam_pass, fallback_pdb_uid_to_user_rid (pw_buf->smb_userid), PDB_SET); - - /* lkclXXXX this is OBSERVED behaviour by NT PDCs, enforced here. - - This was down the bottom for machines, but it looks pretty good as - a general default for non-unix users. --abartlet 2002-01-08 - */ - pdb_set_group_sid_from_rid (sam_pass, DOMAIN_GROUP_RID_USERS, PDB_SET); - pdb_set_username (sam_pass, pw_buf->smb_name, PDB_SET); - pdb_set_domain (sam_pass, lp_workgroup(), PDB_DEFAULT); - - } else { - DEBUG(0,("build_sam_account: smbpasswd database is corrupt! username %s with uid %u is not in unix passwd database!\n", pw_buf->smb_name, pw_buf->smb_userid)); - return False; - } - } else { - if (!NT_STATUS_IS_OK(pdb_fill_sam_pw(sam_pass, pwfile))) { - return False; - } - - passwd_free(&pwfile); - } - - pdb_set_nt_passwd (sam_pass, pw_buf->smb_nt_passwd, PDB_SET); - pdb_set_lanman_passwd (sam_pass, pw_buf->smb_passwd, PDB_SET); - pdb_set_acct_ctrl (sam_pass, pw_buf->acct_ctrl, PDB_SET); - pdb_set_pass_last_set_time (sam_pass, pw_buf->pass_last_set_time, PDB_SET); - pdb_set_pass_can_change_time (sam_pass, pw_buf->pass_last_set_time, PDB_SET); - -#if 0 /* JERRY */ - /* the smbpasswd format doesn't have a must change time field, so - we can't get this right. The best we can do is to set this to - some time in the future. 21 days seems as reasonable as any other value :) - */ - pdb_set_pass_must_change_time (sam_pass, pw_buf->pass_last_set_time + MAX_PASSWORD_AGE, PDB_DEFAULT); -#endif - return True; -} - -/***************************************************************** - Functions to be implemented by the new passdb API - ****************************************************************/ -static NTSTATUS smbpasswd_setsampwent (struct pdb_methods *my_methods, BOOL update) -{ - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - - smbpasswd_state->pw_file = startsmbfilepwent(smbpasswd_state->smbpasswd_file, - update ? PWF_UPDATE : PWF_READ, - &(smbpasswd_state->pw_file_lock_depth)); - - /* did we fail? Should we try to create it? */ - if (!smbpasswd_state->pw_file && update && errno == ENOENT) - { - FILE *fp; - /* slprintf(msg_str,msg_str_len-1, - "smbpasswd file did not exist - attempting to create it.\n"); */ - DEBUG(0,("smbpasswd file did not exist - attempting to create it.\n")); - fp = sys_fopen(smbpasswd_state->smbpasswd_file, "w"); - if (fp) - { - fprintf(fp, "# Samba SMB password file\n"); - fclose(fp); - } - - smbpasswd_state->pw_file = startsmbfilepwent(smbpasswd_state->smbpasswd_file, - update ? PWF_UPDATE : PWF_READ, - &(smbpasswd_state->pw_file_lock_depth)); - } - - if (smbpasswd_state->pw_file != NULL) - return NT_STATUS_OK; - else - return NT_STATUS_UNSUCCESSFUL; -} - -static void smbpasswd_endsampwent (struct pdb_methods *my_methods) -{ - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - endsmbfilepwent(smbpasswd_state->pw_file, &(smbpasswd_state->pw_file_lock_depth)); -} - -/***************************************************************** - ****************************************************************/ -static NTSTATUS smbpasswd_getsampwent(struct pdb_methods *my_methods, SAM_ACCOUNT *user) -{ - NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - struct smb_passwd *pw_buf=NULL; - BOOL done = False; - DEBUG(5,("pdb_getsampwent\n")); - - if (user==NULL) { - DEBUG(5,("pdb_getsampwent (smbpasswd): user is NULL\n")); -#if 0 - smb_panic("NULL pointer passed to getsampwent (smbpasswd)\n"); -#endif - return nt_status; - } - - while (!done) - { - /* do we have an entry? */ - pw_buf = getsmbfilepwent(smbpasswd_state, smbpasswd_state->pw_file); - if (pw_buf == NULL) - return nt_status; - - /* build the SAM_ACCOUNT entry from the smb_passwd struct. - We loop in case the user in the pdb does not exist in - the local system password file */ - if (build_sam_account(smbpasswd_state, user, pw_buf)) - done = True; - } - - DEBUG(5,("getsampwent (smbpasswd): done\n")); - - /* success */ - return NT_STATUS_OK; -} - - -/**************************************************************** - Search smbpasswd file by iterating over the entries. Do not - call getpwnam() for unix account information until we have found - the correct entry - ***************************************************************/ -static NTSTATUS smbpasswd_getsampwnam(struct pdb_methods *my_methods, - SAM_ACCOUNT *sam_acct, const char *username) -{ - NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - struct smb_passwd *smb_pw; - void *fp = NULL; - - DEBUG(10, ("getsampwnam (smbpasswd): search by name: %s\n", username)); - - /* startsmbfilepwent() is used here as we don't want to lookup - the UNIX account in the local system password file until - we have a match. */ - fp = startsmbfilepwent(smbpasswd_state->smbpasswd_file, PWF_READ, &(smbpasswd_state->pw_file_lock_depth)); - - if (fp == NULL) { - DEBUG(0, ("unable to open passdb database.\n")); - return nt_status; - } - - while ( ((smb_pw=getsmbfilepwent(smbpasswd_state, fp)) != NULL)&& (!strequal(smb_pw->smb_name, username)) ) - /* do nothing....another loop */ ; - - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - - - /* did we locate the username in smbpasswd */ - if (smb_pw == NULL) - return nt_status; - - DEBUG(10, ("getsampwnam (smbpasswd): found by name: %s\n", smb_pw->smb_name)); - - if (!sam_acct) { - DEBUG(10,("getsampwnam (smbpasswd): SAM_ACCOUNT is NULL\n")); -#if 0 - smb_panic("NULL pointer passed to pdb_getsampwnam\n"); -#endif - return nt_status; - } - - /* now build the SAM_ACCOUNT */ - if (!build_sam_account(smbpasswd_state, sam_acct, smb_pw)) - return nt_status; - - /* success */ - return NT_STATUS_OK; -} - -static NTSTATUS smbpasswd_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT *sam_acct, const DOM_SID *sid) -{ - NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - struct smb_passwd *smb_pw; - void *fp = NULL; - fstring sid_str; - uint32 rid; - - DEBUG(10, ("smbpasswd_getsampwrid: search by sid: %s\n", sid_to_string(sid_str, sid))); - - if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) - return NT_STATUS_UNSUCCESSFUL; - - /* More special case 'guest account' hacks... */ - if (rid == DOMAIN_USER_RID_GUEST) { - const char *guest_account = lp_guestaccount(); - if (!(guest_account && *guest_account)) { - DEBUG(1, ("Guest account not specfied!\n")); - return nt_status; - } - return smbpasswd_getsampwnam(my_methods, sam_acct, guest_account); - } - - /* Open the sam password file - not for update. */ - fp = startsmbfilepwent(smbpasswd_state->smbpasswd_file, PWF_READ, &(smbpasswd_state->pw_file_lock_depth)); - - if (fp == NULL) { - DEBUG(0, ("unable to open passdb database.\n")); - return nt_status; - } - - while ( ((smb_pw=getsmbfilepwent(smbpasswd_state, fp)) != NULL) && (fallback_pdb_uid_to_user_rid(smb_pw->smb_userid) != rid) ) - /* do nothing */ ; - - endsmbfilepwent(fp, &(smbpasswd_state->pw_file_lock_depth)); - - - /* did we locate the username in smbpasswd */ - if (smb_pw == NULL) - return nt_status; - - DEBUG(10, ("getsampwrid (smbpasswd): found by name: %s\n", smb_pw->smb_name)); - - if (!sam_acct) { - DEBUG(10,("getsampwrid: (smbpasswd) SAM_ACCOUNT is NULL\n")); -#if 0 - smb_panic("NULL pointer passed to pdb_getsampwrid\n"); -#endif - return nt_status; - } - - /* now build the SAM_ACCOUNT */ - if (!build_sam_account (smbpasswd_state, sam_acct, smb_pw)) - return nt_status; - - /* build_sam_account might change the SID on us, if the name was for the guest account */ - if (NT_STATUS_IS_OK(nt_status) && !sid_equal(pdb_get_user_sid(sam_acct), sid)) { - fstring sid_string1, sid_string2; - DEBUG(1, ("looking for user with sid %s instead returned %s for account %s!?!\n", - sid_to_string(sid_string1, sid), sid_to_string(sid_string2, pdb_get_user_sid(sam_acct)), pdb_get_username(sam_acct))); - return NT_STATUS_NO_SUCH_USER; - } - - /* success */ - return NT_STATUS_OK; -} - -static NTSTATUS smbpasswd_add_sam_account(struct pdb_methods *my_methods, SAM_ACCOUNT *sampass) -{ - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - struct smb_passwd smb_pw; - - /* convert the SAM_ACCOUNT */ - if (!build_smb_pass(&smb_pw, sampass)) { - return NT_STATUS_UNSUCCESSFUL; - } - - /* add the entry */ - if(!add_smbfilepwd_entry(smbpasswd_state, &smb_pw)) { - return NT_STATUS_UNSUCCESSFUL; - } - - return NT_STATUS_OK; -} - -static NTSTATUS smbpasswd_update_sam_account(struct pdb_methods *my_methods, SAM_ACCOUNT *sampass) -{ - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - struct smb_passwd smb_pw; - - /* convert the SAM_ACCOUNT */ - if (!build_smb_pass(&smb_pw, sampass)) { - DEBUG(0, ("smbpasswd_update_sam_account: build_smb_pass failed!\n")); - return NT_STATUS_UNSUCCESSFUL; - } - - /* update the entry */ - if(!mod_smbfilepwd_entry(smbpasswd_state, &smb_pw)) { - DEBUG(0, ("smbpasswd_update_sam_account: mod_smbfilepwd_entry failed!\n")); - return NT_STATUS_UNSUCCESSFUL; - } - - return NT_STATUS_OK; -} - -static NTSTATUS smbpasswd_delete_sam_account (struct pdb_methods *my_methods, SAM_ACCOUNT *sampass) -{ - struct smbpasswd_privates *smbpasswd_state = (struct smbpasswd_privates*)my_methods->private_data; - - const char *username = pdb_get_username(sampass); - - if (del_smbfilepwd_entry(smbpasswd_state, username)) - return NT_STATUS_OK; - - return NT_STATUS_UNSUCCESSFUL; -} - -static void free_private_data(void **vp) -{ - struct smbpasswd_privates **privates = (struct smbpasswd_privates**)vp; - - endsmbfilepwent((*privates)->pw_file, &((*privates)->pw_file_lock_depth)); - - *privates = NULL; - /* No need to free any further, as it is talloc()ed */ -} - - -static NTSTATUS pdb_init_smbpasswd(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) -{ - NTSTATUS nt_status; - struct smbpasswd_privates *privates; - - if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) { - return nt_status; - } - - (*pdb_method)->name = "smbpasswd"; - - (*pdb_method)->setsampwent = smbpasswd_setsampwent; - (*pdb_method)->endsampwent = smbpasswd_endsampwent; - (*pdb_method)->getsampwent = smbpasswd_getsampwent; - (*pdb_method)->getsampwnam = smbpasswd_getsampwnam; - (*pdb_method)->getsampwsid = smbpasswd_getsampwsid; - (*pdb_method)->add_sam_account = smbpasswd_add_sam_account; - (*pdb_method)->update_sam_account = smbpasswd_update_sam_account; - (*pdb_method)->delete_sam_account = smbpasswd_delete_sam_account; - - /* Setup private data and free function */ - - privates = talloc_zero(pdb_context->mem_ctx, sizeof(struct smbpasswd_privates)); - - if (!privates) { - DEBUG(0, ("talloc() failed for smbpasswd private_data!\n")); - return NT_STATUS_NO_MEMORY; - } - - /* Store some config details */ - - if (location) { - privates->smbpasswd_file = talloc_strdup(pdb_context->mem_ctx, location); - } else { - privates->smbpasswd_file = talloc_strdup(pdb_context->mem_ctx, lp_smb_passwd_file()); - } - - if (!privates->smbpasswd_file) { - DEBUG(0, ("talloc_strdp() failed for storing smbpasswd location!\n")); - return NT_STATUS_NO_MEMORY; - } - - (*pdb_method)->private_data = privates; - - (*pdb_method)->free_private_data = free_private_data; - - return NT_STATUS_OK; -} - -static NTSTATUS pdb_init_smbpasswd_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) -{ - NTSTATUS nt_status; - struct smbpasswd_privates *privates; - - if (!NT_STATUS_IS_OK(nt_status = pdb_init_smbpasswd(pdb_context, pdb_method, location))) { - return nt_status; - } - - (*pdb_method)->name = "smbpasswd_nua"; - - privates = (*pdb_method)->private_data; - - privates->permit_non_unix_accounts = True; - - if (!lp_non_unix_account_range(&privates->low_nua_userid, &privates->high_nua_userid)) { - DEBUG(0, ("cannot use smbpasswd_nua without 'non unix account range' in smb.conf!\n")); - return NT_STATUS_UNSUCCESSFUL; - } - - return NT_STATUS_OK; -} - -NTSTATUS passdb_smbpasswd_init(void) -{ - NTSTATUS ret; - struct passdb_ops ops; - - /* fill in our name */ - ops.name = "smbpasswd"; - /* fill in all the operations */ - ops.init = pdb_init_smbpasswd; - - /* register ourselves with the PASSDB subsystem. */ - ret = register_backend("passdb", &ops); - if (!NT_STATUS_IS_OK(ret)) { - DEBUG(0,("Failed to register '%s' PASSDB backend!\n", - ops.name)); - return ret; - } - - /* fill in our name */ - ops.name = "smbpasswd_nua"; - /* fill in all the operations */ - ops.init = pdb_init_smbpasswd_nua; - - /* register ourselves with the PASSDB subsystem. */ - ret = register_backend("passdb", &ops); - if (!NT_STATUS_IS_OK(ret)) { - DEBUG(0,("Failed to register '%s' PASSDB backend!\n", - ops.name)); - return ret; - } - - return ret; -} |