diff options
Diffstat (limited to 'source3/libsmb')
| -rw-r--r-- | source3/libsmb/clilist.c | 707 |
1 files changed, 24 insertions, 683 deletions
diff --git a/source3/libsmb/clilist.c b/source3/libsmb/clilist.c index cebafc6919..2339ffdc55 100644 --- a/source3/libsmb/clilist.c +++ b/source3/libsmb/clilist.c @@ -1,683 +1,24 @@ -/* - Unix SMB/CIFS implementation. - client directory list routines - Copyright (C) Andrew Tridgell 1994-1998 - - 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 3 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, see <http://www.gnu.org/licenses/>. -*/ - -#include "includes.h" - -/**************************************************************************** - Calculate a safe next_entry_offset. -****************************************************************************/ - -static size_t calc_next_entry_offset(const char *base, const char *pdata_end) -{ - size_t next_entry_offset = (size_t)IVAL(base,0); - - if (next_entry_offset == 0 || - base + next_entry_offset < base || - base + next_entry_offset > pdata_end) { - next_entry_offset = pdata_end - base; - } - return next_entry_offset; -} - -/**************************************************************************** - 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 size_t interpret_long_filename(TALLOC_CTX *ctx, - struct cli_state *cli, - int level, - const char *p, - const char *pdata_end, - file_info *finfo, - uint32 *p_resume_key, - DATA_BLOB *p_last_name_raw) -{ - int len; - size_t ret; - const char *base = p; - - data_blob_free(p_last_name_raw); - - if (p_resume_key) { - *p_resume_key = 0; - } - ZERO_STRUCTP(finfo); - finfo->cli = cli; - - switch (level) { - case 1: /* OS/2 understands this */ - /* these dates are converted to GMT by - make_unix_date */ - if (pdata_end - base < 27) { - return pdata_end - base; - } - finfo->ctime_ts = convert_time_t_to_timespec(cli_make_unix_date2(cli, p+4)); - finfo->atime_ts = convert_time_t_to_timespec(cli_make_unix_date2(cli, p+8)); - finfo->mtime_ts = convert_time_t_to_timespec(cli_make_unix_date2(cli, p+12)); - finfo->size = IVAL(p,16); - finfo->mode = CVAL(p,24); - len = CVAL(p, 26); - p += 27; - p += clistr_align_in(cli, p, 0); - - /* We can safely use +1 here (which is required by OS/2) - * instead of +2 as the STR_TERMINATE flag below is - * actually used as the length calculation. - * The len+2 is merely an upper bound. - * Due to the explicit 2 byte null termination - * in cli_receive_trans/cli_receive_nt_trans - * we know this is safe. JRA + kukks - */ - - if (p + len + 1 > pdata_end) { - return pdata_end - base; - } - - /* the len+2 below looks strange but it is - important to cope with the differences - between win2000 and win9x for this call - (tridge) */ - ret = clistr_pull_talloc(ctx, - cli, - &finfo->name, - p, - len+2, - STR_TERMINATE); - if (ret == (size_t)-1) { - return pdata_end - base; - } - p += ret; - return PTR_DIFF(p, base); - - case 2: /* this is what OS/2 uses mostly */ - /* these dates are converted to GMT by - make_unix_date */ - if (pdata_end - base < 31) { - return pdata_end - base; - } - finfo->ctime_ts = convert_time_t_to_timespec(cli_make_unix_date2(cli, p+4)); - finfo->atime_ts = convert_time_t_to_timespec(cli_make_unix_date2(cli, p+8)); - finfo->mtime_ts = convert_time_t_to_timespec(cli_make_unix_date2(cli, p+12)); - finfo->size = IVAL(p,16); - finfo->mode = CVAL(p,24); - len = CVAL(p, 30); - p += 31; - /* check for unisys! */ - if (p + len + 1 > pdata_end) { - return pdata_end - base; - } - ret = clistr_pull_talloc(ctx, - cli, - &finfo->name, - p, - len, - STR_NOALIGN); - if (ret == (size_t)-1) { - return pdata_end - base; - } - p += ret; - return PTR_DIFF(p, base) + 1; - - case 260: /* NT uses this, but also accepts 2 */ - { - size_t namelen, slen; - - if (pdata_end - base < 94) { - return pdata_end - base; - } - - p += 4; /* next entry offset */ - - if (p_resume_key) { - *p_resume_key = IVAL(p,0); - } - p += 4; /* fileindex */ - - /* Offset zero is "create time", not "change time". */ - p += 8; - finfo->atime_ts = interpret_long_date(p); - p += 8; - finfo->mtime_ts = interpret_long_date(p); - p += 8; - finfo->ctime_ts = interpret_long_date(p); - p += 8; - finfo->size = IVAL2_TO_SMB_BIG_UINT(p,0); - p += 8; - p += 8; /* alloc size */ - finfo->mode = CVAL(p,0); - p += 4; - namelen = IVAL(p,0); - p += 4; - p += 4; /* EA size */ - slen = SVAL(p, 0); - if (slen > 24) { - /* Bad short name length. */ - return pdata_end - base; - } - p += 2; - { - /* stupid NT bugs. grr */ - int flags = 0; - if (p[1] == 0 && namelen > 1) flags |= STR_UNICODE; - clistr_pull(cli, finfo->short_name, p, - sizeof(finfo->short_name), - slen, flags); - } - p += 24; /* short name? */ - if (p + namelen < p || p + namelen > pdata_end) { - return pdata_end - base; - } - ret = clistr_pull_talloc(ctx, - cli, - &finfo->name, - p, - namelen, - 0); - if (ret == (size_t)-1) { - return pdata_end - base; - } - - /* To be robust in the face of unicode conversion failures - we need to copy the raw bytes of the last name seen here. - Namelen doesn't include the terminating unicode null, so - copy it here. */ - - if (p_last_name_raw) { - *p_last_name_raw = data_blob(NULL, namelen+2); - memcpy(p_last_name_raw->data, p, namelen); - SSVAL(p_last_name_raw->data, namelen, 0); - } - return calc_next_entry_offset(base, pdata_end); - } - } - - DEBUG(1,("Unknown long filename format %d\n",level)); - return calc_next_entry_offset(base, pdata_end); -} - -/**************************************************************************** - Do a directory listing, calling fn on each file found. -****************************************************************************/ - -int cli_list_new(struct cli_state *cli,const char *Mask,uint16 attribute, - void (*fn)(const char *, file_info *, const char *, void *), void *state) -{ -#if 1 - int max_matches = 1366; /* Match W2k - was 512. */ -#else - int max_matches = 512; -#endif - int info_level; - char *p, *p2, *rdata_end; - char *mask = NULL; - file_info finfo; - int i; - char *dirlist = NULL; - int dirlist_len = 0; - int total_received = -1; - bool First = True; - int ff_searchcount=0; - int ff_eos=0; - int ff_dir_handle=0; - int loop_count = 0; - char *rparam=NULL, *rdata=NULL; - unsigned int param_len, data_len; - uint16 setup; - char *param; - const char *mnt; - uint32 resume_key = 0; - TALLOC_CTX *frame = talloc_stackframe(); - DATA_BLOB last_name_raw = data_blob(NULL, 0); - - /* NT uses 260, OS/2 uses 2. Both accept 1. */ - info_level = (cli->capabilities&CAP_NT_SMBS)?260:1; - - mask = SMB_STRDUP(Mask); - if (!mask) { - TALLOC_FREE(frame); - return -1; - } - - while (ff_eos == 0) { - size_t nlen = 2*(strlen(mask)+1); - - loop_count++; - if (loop_count > 200) { - DEBUG(0,("Error: Looping in FIND_NEXT??\n")); - break; - } - - param = SMB_MALLOC_ARRAY(char, 12+nlen+last_name_raw.length+2); - if (!param) { - break; - } - - if (First) { - setup = TRANSACT2_FINDFIRST; - SSVAL(param,0,attribute); /* attribute */ - SSVAL(param,2,max_matches); /* max count */ - SSVAL(param,4,(FLAG_TRANS2_FIND_REQUIRE_RESUME|FLAG_TRANS2_FIND_CLOSE_IF_END)); /* resume required + close on end */ - SSVAL(param,6,info_level); - SIVAL(param,8,0); - p = param+12; - p += clistr_push(cli, param+12, mask, - nlen, STR_TERMINATE); - } else { - setup = TRANSACT2_FINDNEXT; - SSVAL(param,0,ff_dir_handle); - SSVAL(param,2,max_matches); /* max count */ - SSVAL(param,4,info_level); - /* For W2K servers serving out FAT filesystems we *must* set the - resume key. If it's not FAT then it's returned as zero. */ - SIVAL(param,6,resume_key); /* ff_resume_key */ - /* NB. *DON'T* use continue here. If you do it seems that W2K and bretheren - can miss filenames. Use last filename continue instead. JRA */ - SSVAL(param,10,(FLAG_TRANS2_FIND_REQUIRE_RESUME|FLAG_TRANS2_FIND_CLOSE_IF_END)); /* resume required + close on end */ - p = param+12; - if (last_name_raw.length) { - memcpy(p, last_name_raw.data, last_name_raw.length); - p += last_name_raw.length; - } else { - p += clistr_push(cli, param+12, mask, - nlen, STR_TERMINATE); - } - } - - param_len = PTR_DIFF(p, param); - - if (!cli_send_trans(cli, SMBtrans2, - NULL, /* Name */ - -1, 0, /* fid, flags */ - &setup, 1, 0, /* setup, length, max */ - param, param_len, 10, /* param, length, max */ - NULL, 0, -#if 0 - /* w2k value. */ - MIN(16384,cli->max_xmit) /* data, length, max. */ -#else - cli->max_xmit /* data, length, max. */ -#endif - )) { - SAFE_FREE(param); - TALLOC_FREE(frame); - break; - } - - SAFE_FREE(param); - - if (!cli_receive_trans(cli, SMBtrans2, - &rparam, ¶m_len, - &rdata, &data_len) && - cli_is_dos_error(cli)) { - /* We need to work around a Win95 bug - sometimes - it gives ERRSRV/ERRerror temprarily */ - uint8 eclass; - uint32 ecode; - - SAFE_FREE(rdata); - SAFE_FREE(rparam); - - cli_dos_error(cli, &eclass, &ecode); - - /* - * OS/2 might return "no more files", - * which just tells us, that searchcount is zero - * in this search. - * Guenter Kukkukk <linux@kukkukk.com> - */ - - if (eclass == ERRDOS && ecode == ERRnofiles) { - ff_searchcount = 0; - cli_reset_error(cli); - break; - } - - if (eclass != ERRSRV || ecode != ERRerror) - break; - smb_msleep(100); - continue; - } - - if (cli_is_error(cli) || !rdata || !rparam) { - SAFE_FREE(rdata); - SAFE_FREE(rparam); - break; - } - - if (total_received == -1) - total_received = 0; - - /* parse out some important return info */ - p = rparam; - if (First) { - ff_dir_handle = SVAL(p,0); - ff_searchcount = SVAL(p,2); - ff_eos = SVAL(p,4); - } else { - ff_searchcount = SVAL(p,0); - ff_eos = SVAL(p,2); - } - - if (ff_searchcount == 0) { - SAFE_FREE(rdata); - SAFE_FREE(rparam); - break; - } - - /* point to the data bytes */ - p = rdata; - rdata_end = rdata + data_len; - - /* we might need the lastname for continuations */ - for (p2=p,i=0;i<ff_searchcount && p2 < rdata_end;i++) { - if ((info_level == 260) && (i == ff_searchcount-1)) { - /* Last entry - fixup the last offset length. */ - SIVAL(p2,0,PTR_DIFF((rdata + data_len),p2)); - } - p2 += interpret_long_filename(frame, - cli, - info_level, - p2, - rdata_end, - &finfo, - &resume_key, - &last_name_raw); - - if (!finfo.name) { - DEBUG(0,("cli_list_new: Error: unable to parse name from info level %d\n", - info_level)); - ff_eos = 1; - break; - } - if (!First && *mask && strcsequal(finfo.name, mask)) { - DEBUG(0,("Error: Looping in FIND_NEXT as name %s has already been seen?\n", - finfo.name)); - ff_eos = 1; - break; - } - } - - SAFE_FREE(mask); - if (ff_searchcount > 0 && ff_eos == 0 && finfo.name) { - mask = SMB_STRDUP(finfo.name); - } else { - mask = SMB_STRDUP(""); - } - if (!mask) { - SAFE_FREE(rdata); - SAFE_FREE(rparam); - break; - } - - /* grab the data for later use */ - /* and add them to the dirlist pool */ - dirlist = (char *)SMB_REALLOC(dirlist,dirlist_len + data_len); - - if (!dirlist) { - DEBUG(0,("cli_list_new: Failed to expand dirlist\n")); - SAFE_FREE(rdata); - SAFE_FREE(rparam); - break; - } - - memcpy(dirlist+dirlist_len,p,data_len); - dirlist_len += data_len; - - total_received += ff_searchcount; - - SAFE_FREE(rdata); - SAFE_FREE(rparam); - - DEBUG(3,("received %d entries (eos=%d)\n", - ff_searchcount,ff_eos)); - - if (ff_searchcount > 0) - loop_count = 0; - - First = False; - } - - mnt = cli_cm_get_mntpoint( cli ); - - /* see if the server disconnected or the connection otherwise failed */ - if (cli_is_error(cli)) { - total_received = -1; - } else { - /* no connection problem. let user function add each entry */ - rdata_end = dirlist + dirlist_len; - for (p=dirlist,i=0;i<total_received;i++) { - p += interpret_long_filename(frame, - cli, - info_level, - p, - rdata_end, - &finfo, - NULL, - NULL); - if (!finfo.name) { - DEBUG(0,("cli_list_new: unable to parse name from info level %d\n", - info_level)); - break; - } - fn(mnt,&finfo, Mask, state); - } - } - - /* free up the dirlist buffer and last name raw blob */ - SAFE_FREE(dirlist); - data_blob_free(&last_name_raw); - SAFE_FREE(mask); - TALLOC_FREE(frame); - return(total_received); -} - -/**************************************************************************** - Interpret a short filename structure. - The length of the structure is returned. -****************************************************************************/ - -static bool interpret_short_filename(TALLOC_CTX *ctx, - struct cli_state *cli, - char *p, - file_info *finfo) -{ - size_t ret; - ZERO_STRUCTP(finfo); - - finfo->cli = cli; - finfo->mode = CVAL(p,21); - - /* this date is converted to GMT by make_unix_date */ - finfo->ctime_ts.tv_sec = cli_make_unix_date(cli, p+22); - finfo->ctime_ts.tv_nsec = 0; - finfo->mtime_ts.tv_sec = finfo->atime_ts.tv_sec = finfo->ctime_ts.tv_sec; - finfo->mtime_ts.tv_nsec = finfo->atime_ts.tv_nsec = 0; - finfo->size = IVAL(p,26); - ret = clistr_pull_talloc(ctx, - cli, - &finfo->name, - p+30, - 12, - STR_ASCII); - if (ret == (size_t)-1) { - return false; - } - - if (finfo->name) { - strlcpy(finfo->short_name, - finfo->name, - sizeof(finfo->short_name)); - } - return true; - return(DIR_STRUCT_SIZE); -} - -/**************************************************************************** - Do a directory listing, calling fn on each file found. - this uses the old SMBsearch interface. It is needed for testing Samba, - but should otherwise not be used. -****************************************************************************/ - -int cli_list_old(struct cli_state *cli,const char *Mask,uint16 attribute, - void (*fn)(const char *, file_info *, const char *, void *), void *state) -{ - char *p; - int received = 0; - bool first = True; - char status[21]; - int num_asked = (cli->max_xmit - 100)/DIR_STRUCT_SIZE; - int num_received = 0; - int i; - char *dirlist = NULL; - char *mask = NULL; - TALLOC_CTX *frame = NULL; - - ZERO_ARRAY(status); - - mask = SMB_STRDUP(Mask); - if (!mask) { - return -1; - } - - while (1) { - memset(cli->outbuf,'\0',smb_size); - memset(cli->inbuf,'\0',smb_size); - - cli_set_message(cli->outbuf,2,0,True); - - SCVAL(cli->outbuf,smb_com,SMBsearch); - - SSVAL(cli->outbuf,smb_tid,cli->cnum); - cli_setup_packet(cli); - - SSVAL(cli->outbuf,smb_vwv0,num_asked); - SSVAL(cli->outbuf,smb_vwv1,attribute); - - p = smb_buf(cli->outbuf); - *p++ = 4; - - p += clistr_push(cli, p, first?mask:"", - cli->bufsize - PTR_DIFF(p,cli->outbuf), - STR_TERMINATE); - *p++ = 5; - if (first) { - SSVAL(p,0,0); - p += 2; - } else { - SSVAL(p,0,21); - p += 2; - memcpy(p,status,21); - p += 21; - } - - cli_setup_bcc(cli, p); - cli_send_smb(cli); - if (!cli_receive_smb(cli)) break; - - received = SVAL(cli->inbuf,smb_vwv0); - if (received <= 0) break; - - /* Ensure we received enough data. */ - if ((cli->inbuf+4+smb_len(cli->inbuf) - (smb_buf(cli->inbuf)+3)) < - received*DIR_STRUCT_SIZE) { - break; - } - - first = False; - - dirlist = (char *)SMB_REALLOC( - dirlist,(num_received + received)*DIR_STRUCT_SIZE); - if (!dirlist) { - DEBUG(0,("cli_list_old: failed to expand dirlist")); - SAFE_FREE(mask); - return 0; - } - - p = smb_buf(cli->inbuf) + 3; - - memcpy(dirlist+num_received*DIR_STRUCT_SIZE, - p,received*DIR_STRUCT_SIZE); - - memcpy(status,p + ((received-1)*DIR_STRUCT_SIZE),21); - - num_received += received; - - if (cli_is_error(cli)) break; - } - - if (!first) { - memset(cli->outbuf,'\0',smb_size); - memset(cli->inbuf,'\0',smb_size); - - cli_set_message(cli->outbuf,2,0,True); - SCVAL(cli->outbuf,smb_com,SMBfclose); - SSVAL(cli->outbuf,smb_tid,cli->cnum); - cli_setup_packet(cli); - - SSVAL(cli->outbuf, smb_vwv0, 0); /* find count? */ - SSVAL(cli->outbuf, smb_vwv1, attribute); - - p = smb_buf(cli->outbuf); - *p++ = 4; - fstrcpy(p, ""); - p += strlen(p) + 1; - *p++ = 5; - SSVAL(p, 0, 21); - p += 2; - memcpy(p,status,21); - p += 21; - - cli_setup_bcc(cli, p); - cli_send_smb(cli); - if (!cli_receive_smb(cli)) { - DEBUG(0,("Error closing search: %s\n",cli_errstr(cli))); - } - } - - frame = talloc_stackframe(); - for (p=dirlist,i=0;i<num_received;i++) { - file_info finfo; - if (!interpret_short_filename(frame, cli, p, &finfo)) { - break; - } - p += DIR_STRUCT_SIZE; - fn("\\", &finfo, Mask, state); - } - TALLOC_FREE(frame); - - SAFE_FREE(mask); - SAFE_FREE(dirlist); - return(num_received); -} - -/**************************************************************************** - Do a directory listing, calling fn on each file found. - This auto-switches between old and new style. -****************************************************************************/ - -int cli_list(struct cli_state *cli,const char *Mask,uint16 attribute, - void (*fn)(const char *, file_info *, const char *, void *), void *state) -{ - if (cli->protocol <= PROTOCOL_LANMAN1) - return cli_list_old(cli, Mask, attribute, fn, state); - return cli_list_new(cli, Mask, attribute, fn, state); -} +# On branch v3-2-test +# Changed but not updated: +# (use "git add <file>..." to update what will be committed) +# +# modified: include/local.h +# modified: include/smb.h +# modified: libsmb/clilist.c +# modified: modules/vfs_default.c +# modified: param/loadparm.c +# modified: smbd/fileio.c +# modified: smbd/vfs.c +# +# Untracked files: +# (use "git add <file>..." to include in what will be committed) +# +# ../examples/libsmbclient/libsmbclient +# ../examples/libsmbclient/libsmbclient.c +# ../examples/libsmbclient/testctx +# client_enterprise.txt +# configure-for-test +# generated +# lib/.util_sock.c.swp +# smbd/posix_acls.c.orig +no changes added to commit (use "git add" and/or "git commit -a") |