diff options
Diffstat (limited to 'source/msdfs')
| -rw-r--r-- | source/msdfs/README | 27 | ||||
| -rw-r--r-- | source/msdfs/msdfs.c | 456 | ||||
| -rw-r--r-- | source/msdfs/msdfs_tdb.c | 268 | ||||
| -rw-r--r-- | source/msdfs/parse_dfs_map.c | 255 |
4 files changed, 0 insertions, 1006 deletions
diff --git a/source/msdfs/README b/source/msdfs/README deleted file mode 100644 index 62fded3f552..00000000000 --- a/source/msdfs/README +++ /dev/null @@ -1,27 +0,0 @@ -Setting up MS Dfs in Samba -kalele@veritas.com March 2000 - -Currently, MS Dfs support is a configure time parameter (--with-msdfs). Can be changed later to always compile it in.. - -To have a server announce itself as a Dfs server, add a "host msdfs=yes" entry to smb.conf. - -To make a share a Dfs root, add a "dfs map" entry to the share definition in the smb.conf file. -e.g. -[pub] - dfs map = /usr/local/samba/lib/pub_dfs_map - -The pub_dfs_map file would contain a list of junction points and their referral paths. - -In our example, if you have a directory pub_dir1/ in the pub share and want to make it a dfs junction point to \\machineX\pub, you can have an entry in the pub_dfs_map file as: - -pub_dir1 -\\machineX\pub:0:600 - -where: 0 is the proximity of the server. If you have multiple referred servers for one junction point, you can set up preferences among these using this field. -& 600 is the number of seconds the client must cache the referral. After this time period, the smb client supposedly should contact the server again for a fresh referral. - -NOTE: You can have multiple referral paths for one junction point. Currently, the parser code depends on the leading \ to determine if the line is a referral or a new junction point. - -Shares with no "dfs map" entries are served as normal shares and the client stops talking Dfs with Samba after a tconX. - -TODO: Dynamically showing junction points to dfs clients alone,probably in the findfirst reply. Currently, you need to have directories on the samba server as token junction points. diff --git a/source/msdfs/msdfs.c b/source/msdfs/msdfs.c deleted file mode 100644 index 05e1f221b82..00000000000 --- a/source/msdfs/msdfs.c +++ /dev/null @@ -1,456 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 3.0 - MSDfs services for Samba - Copyright (C) Shirish Kalele 2000 - - 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" - -extern int DEBUGLEVEL; -extern pstring global_myname; -extern uint32 global_client_caps; - -#ifdef MS_DFS - -#define VERSION2_REFERRAL_SIZE 0x16 -#define VERSION3_REFERRAL_SIZE 0x22 -#define REFERRAL_HEADER_SIZE 0x08 - -static void create_nondfs_path(char* pathname, struct dfs_path* pdp) -{ - pstrcpy(pathname,pdp->volumename); - pstrcat(pathname,"\\"); - pstrcat(pathname,pdp->restofthepath); -} - -/* Parse the pathname of the form \hostname\service\volume\restofthepath - into the dfs_path structure */ -static BOOL parse_dfs_path(char* pathname, struct dfs_path* pdp) -{ - pstring pathname_local; - char* p,*temp; - - pstrcpy(pathname_local,pathname); - p = temp = pathname_local; - - ZERO_STRUCTP(pdp); - - /* strip off all \'s from the beginning */ - /* while(*temp=='\\') temp++; - - DEBUG(10,("temp in parse_dfs_path : .%s.\n",temp)); - - remove any trailing \'s - if(temp[strlen(temp)-1] == '\\') temp[strlen(temp)-1]='\0'; -*/ - - trim_string(temp,"\\","\\"); - DEBUG(10,("temp in parse_dfs_path: .%s. after trimming \'s\n",temp)); - - /* now tokenize */ - /* parse out hostname */ - p = strchr(temp,'\\'); - if(p == NULL) - return False; - *p = '\0'; - pstrcpy(pdp->hostname,temp); - DEBUG(10,("hostname: %s\n",pdp->hostname)); - - /* parse out servicename */ - temp = p+1; - p = strchr(temp,'\\'); - if(p == NULL) - { - pstrcpy(pdp->servicename,temp); - return True; - } - *p = '\0'; - pstrcpy(pdp->servicename,temp); - DEBUG(10,("servicename: %s\n",pdp->servicename)); - - /* parse out volumename */ - temp = p+1; - p = strchr(temp,'\\'); - if(p == NULL) - { - pstrcpy(pdp->volumename,temp); - return True; - } - *p = '\0'; - pstrcpy(pdp->volumename,temp); - DEBUG(10,("volumename: %s\n",pdp->volumename)); - - /* remaining path .. */ - pstrcpy(pdp->restofthepath,p+1); - DEBUG(10,("rest of the path: %s\n",pdp->restofthepath)); - return True; -} - - -/************************************************************** -Decides if given pathname is Dfs and if it should be redirected -Converts pathname to non-dfs format if Dfs redirection not required -**************************************************************/ -BOOL dfs_redirect(char* pathname, connection_struct* conn) -{ - struct dfs_path dp; - pstring temp; - - pstrcpy(temp,pathname); - - if(lp_dfsmap(SNUM(conn))==NULL || *lp_dfsmap(SNUM(conn))=='\0') - return False; - - parse_dfs_path(pathname,&dp); - - if(global_myname && (strcasecmp(global_myname,dp.hostname)!=0)) - return False; - - /* check if need to redirect */ - if(isDfsShare(dp.servicename,dp.volumename)) - { - DEBUG(4,("dfs_redirect: Redirecting %s\n",temp)); - return True; - } - else - { - create_nondfs_path(pathname,&dp); - DEBUG(4,("dfs_redirect: Not redirecting %s. Converted to non-dfs pathname \'%s\'\n", - temp,pathname)); - return False; - } -} - -/* - Special DFS redirect call for findfirst's. - If the findfirst is for the dfs junction, then no redirection, - if it is for the underlying directory contents, redirect. - */ -BOOL dfs_findfirst_redirect(char* pathname, connection_struct* conn) -{ - struct dfs_path dp; - - pstring temp; - - pstrcpy(temp,pathname); - - /* Is the path Dfs-redirectable? */ - if(!dfs_redirect(temp,conn)) - { - pstrcpy(pathname,temp); - return False; - } - - parse_dfs_path(pathname,&dp); - DEBUG(8,("dfs_findfirst_redirect: path %s is in Dfs. dp.restofthepath=.%s.\n",pathname,dp.restofthepath)); - if(*(dp.restofthepath)) - return True; - else - { - create_nondfs_path(pathname,&dp); - return False; - } -} - -/****************************************************************** - * Set up the Dfs referral for the dfs pathname - ******************************************************************/ -int setup_dfs_referral(char* pathname, int max_referral_level, - char** ppdata) -{ - struct dfs_path dp; - - struct junction_map junction; - - BOOL self_referral; - - char* pdata = *ppdata; - int reply_size = 0; - - ZERO_STRUCT(junction); - - parse_dfs_path(pathname,&dp); - - /* check if path is dfs : check hostname is the first token */ - if(global_myname && (strcasecmp(global_myname,dp.hostname)!=0)) - { - DEBUG(4,("Invalid DFS referral request for %s\n",pathname)); - return -1; - } - - /* Check for a non-DFS share */ - { - char* map = lp_dfsmap(lp_servicenumber(dp.servicename)); - DEBUG(10,("lp_dfsmap in setup dfs referral: .%s.\n",map )); - - if(map == NULL || (*map == '\0')) - return -1; - } - - pstrcpy(junction.service_name,dp.servicename); - pstrcpy(junction.volume_name,dp.volumename); - - /* get the junction entry */ - if(!get_junction_entry(&junction)) - { - - /* refer the same pathname, create a standard referral struct */ - struct referral* ref; - self_referral = True; - junction.referral_count = 1; - if((ref = (struct referral*) malloc(sizeof(struct referral))) == NULL) - { - DEBUG(0,("malloc failed for referral\n")); - return -1; - } - - pstrcpy(ref->alternate_path,pathname); - ref->proximity = 0; - ref->ttl = REFERRAL_TTL; - junction.referral_list = ref; - } - else - { - self_referral = False; - if( DEBUGLVL( 3 ) ) - { - int i=0; - dbgtext("setup_dfs_referral: Referring client request for %s to alternate path(s):",pathname); - for(i=0;i<junction.referral_count;i++) - dbgtext(" %s",junction.referral_list[i].alternate_path); - dbgtext(".\n"); - } - } - - /* create the referral depeding on version */ - DEBUG(10,("MAX_REFERRAL_LEVEL :%d\n",max_referral_level)); - if(max_referral_level<2 || max_referral_level>3) max_referral_level = 2; - - switch(max_referral_level) - { - case 2: - { - unsigned char uni_requestedpath[1024]; - int uni_reqpathoffset1,uni_reqpathoffset2; - int uni_curroffset; - int requestedpathlen=0; - int offset; - int i=0; - - DEBUG(10,("setting up version2 referral\nRequested path:\n")); - - requestedpathlen = (dos_struni2(uni_requestedpath,pathname,512)+1)*2; - - dump_data(10,uni_requestedpath,requestedpathlen); - - DEBUG(10,("ref count = %u\n",junction.referral_count)); - - uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + - VERSION2_REFERRAL_SIZE * junction.referral_count; - - uni_reqpathoffset2 = uni_reqpathoffset1 + requestedpathlen; - - uni_curroffset = uni_reqpathoffset2 + requestedpathlen; - - reply_size = REFERRAL_HEADER_SIZE + VERSION2_REFERRAL_SIZE*junction.referral_count + - 2 * requestedpathlen; - DEBUG(10,("reply_size: %u\n",reply_size)); - - /* add up the unicode lengths of all the referral paths */ - for(i=0;i<junction.referral_count;i++) - { - DEBUG(10,("referral %u : %s\n",i,junction.referral_list[i].alternate_path)); - reply_size += (strlen(junction.referral_list[i].alternate_path)+1)*2; - } - - DEBUG(10,("reply_size = %u\n",reply_size)); - /* add the unexplained 0x16 bytes */ - reply_size += 0x16; - - pdata = *ppdata = Realloc(pdata,reply_size); - if(pdata == NULL) - { - DEBUG(0,("malloc failed for Realloc!\n")); - return -1; - } - - /* copy in the dfs requested paths.. required for offset calculations */ - memcpy(pdata+uni_reqpathoffset1,uni_requestedpath,requestedpathlen); - memcpy(pdata+uni_reqpathoffset2,uni_requestedpath,requestedpathlen); - - - /* create the header */ - SSVAL(pdata,0,requestedpathlen-2); /* path consumed */ - SSVAL(pdata,2,junction.referral_count); /* number of referral in this pkt */ - if(self_referral) - SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER); - else - SIVAL(pdata,4,DFSREF_STORAGE_SERVER); - - offset = 8; - /* add the referral elements */ - for(i=0;i<junction.referral_count;i++) - { - struct referral* ref = &(junction.referral_list[i]); - int unilen; - - SSVAL(pdata,offset,2); /* version 2 */ - SSVAL(pdata,offset+2,VERSION2_REFERRAL_SIZE); - if(self_referral) - SSVAL(pdata,offset+4,1); - else - SSVAL(pdata,offset+4,0); - SSVAL(pdata,offset+6,0); /* ref_flags :use path_consumed bytes? */ - SIVAL(pdata,offset+8,ref->proximity); - SIVAL(pdata,offset+12,ref->ttl); - - SSVAL(pdata,offset+16,uni_reqpathoffset1-offset); - SSVAL(pdata,offset+18,uni_reqpathoffset2-offset); - /* copy referred path into current offset */ - unilen = (dos_struni2(pdata+uni_curroffset,ref->alternate_path,512) - +1)*2; - SSVAL(pdata,offset+20,uni_curroffset-offset); - - uni_curroffset += unilen; - offset += VERSION2_REFERRAL_SIZE; - } - /* add in the unexplained 22 (0x16) bytes at the end */ - memset(pdata+uni_curroffset,'\0',0x16); - free(junction.referral_list); - break; - } - - case 3: - { - unsigned char uni_reqpath[1024]; - int uni_reqpathoffset1, uni_reqpathoffset2; - int uni_curroffset; - - int reqpathlen = 0; - int offset,i=0; - - DEBUG(10,("setting up version3 referral\n")); - - reqpathlen = (dos_struni2(uni_reqpath,pathname,512)+1)*2; - - dump_data(10,uni_reqpath,reqpathlen); - - uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + VERSION3_REFERRAL_SIZE * - junction.referral_count; - uni_reqpathoffset2 = uni_reqpathoffset1 + reqpathlen; - reply_size = uni_curroffset = uni_reqpathoffset2 + reqpathlen; - - for(i=0;i<junction.referral_count;i++) - { - DEBUG(10,("referral %u : %s\n",i,junction.referral_list[i].alternate_path)); - reply_size += (strlen(junction.referral_list[i].alternate_path)+1)*2; - } - - pdata = *ppdata = Realloc(pdata,reply_size); - if(pdata == NULL) - { - DEBUG(0,("version3 referral setup: malloc failed for Realloc!\n")); - return -1; - } - - /* create the header */ - SSVAL(pdata,0,reqpathlen-2); /* path consumed */ - SSVAL(pdata,2,junction.referral_count); /* number of referral in this pkt */ - if(self_referral) - SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER); - else - SIVAL(pdata,4,DFSREF_STORAGE_SERVER); - - /* copy in the reqpaths */ - memcpy(pdata+uni_reqpathoffset1,uni_reqpath,reqpathlen); - memcpy(pdata+uni_reqpathoffset2,uni_reqpath,reqpathlen); - - offset = 8; - for(i=0;i<junction.referral_count;i++) - { - struct referral* ref = &(junction.referral_list[i]); - int unilen; - - SSVAL(pdata,offset,3); /* version 3 */ - SSVAL(pdata,offset+2,VERSION3_REFERRAL_SIZE); - if(self_referral) - SSVAL(pdata,offset+4,1); - else - SSVAL(pdata,offset+4,0); - - SSVAL(pdata,offset+6,0); /* ref_flags :use path_consumed bytes? */ - SIVAL(pdata,offset+8,ref->ttl); - - SSVAL(pdata,offset+12,uni_reqpathoffset1-offset); - SSVAL(pdata,offset+14,uni_reqpathoffset2-offset); - /* copy referred path into current offset */ - unilen = (dos_struni2(pdata+uni_curroffset,ref->alternate_path,512) - +1)*2; - SSVAL(pdata,offset+16,uni_curroffset-offset); - /* copy 0x10 bytes of 00's in the ServiceSite GUID */ - memset(pdata+offset+18,'\0',16); - - uni_curroffset += unilen; - offset += VERSION3_REFERRAL_SIZE; - } - free(junction.referral_list); - break; - } - } - DEBUG(10,("DFS Referral pdata:\n")); - dump_data(10,pdata,reply_size); - return reply_size; -} - -int dfs_path_error(char* inbuf, char* outbuf) -{ - enum remote_arch_types ra_type = get_remote_arch(); - BOOL NT_arch = ((ra_type==RA_WINNT) || (ra_type == RA_WIN2K)); - if(NT_arch && (global_client_caps & (CAP_NT_SMBS | CAP_STATUS32)) ) - { - SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2) | FLAGS2_32_BIT_ERROR_CODES); - return(ERROR(0,0xc0000000|NT_STATUS_PATH_NOT_COVERED)); - } - return(ERROR(ERRSRV,ERRbadpath)); -} - -#else -/* Stub functions if MS_DFS not defined */ -int setup_dfs_referral(char* pathname, int max_referral_level, - char** ppdata) -{ - return -1; -} - -#endif - -/* Trivial fn that chops off upper bytes to convert unicode to dos */ -void unistr_to_dos(char* dst,char* src) -{ - pstring s; - int i=0; - - for(i=0;SVAL(src,i*2) && i<1024;i++) - { - s[i]= SVAL(src,i*2) & 0xff; - } - s[i]=0; - - safe_strcpy(dst,s,1024); - DEBUG(10,("converted unistring to %s\n",s)); -} diff --git a/source/msdfs/msdfs_tdb.c b/source/msdfs/msdfs_tdb.c deleted file mode 100644 index 2435d7ade7b..00000000000 --- a/source/msdfs/msdfs_tdb.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 3.0 - MSDfs services for Samba - Copyright (C) Shirish Kalele 2000 - Copyright (C) Samba Team 2000 - - 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" - -extern int DEBUGLEVEL; - -#ifdef MS_DFS - -#define MSDFS_TDB "msdfs.tdb" - -/* structures for msdfs.tdb */ -struct tdb_junction_key -{ - pstring service_name; - pstring volume_name; -}; - -struct tdb_junction_data -{ - int referral_count; - struct referral first_referral; -}; - -static TDB_CONTEXT* msdfs_map = NULL; - -/* - * Open the msdfs tdb map. Called once for update when parsing the dfsmap file - * and then subsequently at tconX for reading - */ -BOOL msdfs_open(BOOL update) -{ - pstring fname; - int oflags = (update)?O_RDWR|O_CREAT:O_RDONLY; - - /* close any open TDB contexts before opening */ - if(msdfs_map != NULL) - { - DEBUG(10,("msdfs_open: Closing existing TDB_CONTEXT msdfs_map: name: %s, fd: %d\n", - msdfs_map->name,msdfs_map->fd)); - tdb_close(msdfs_map); - } - - pstrcpy(fname,lock_path(MSDFS_TDB)); - DEBUG(10,("opening msdfs tdb : .%s.\n",fname)); - if((msdfs_map = tdb_open(fname,0,0,oflags,0644)) == NULL) - { - DEBUG(1,("Couldn't open Dfs tdb map %s %s.\nError was %s\n",fname, - (update?"for update":"for reading"),strerror(errno) )); - return False; - } - DEBUG(10,("TDB_CONTEXT msdfs_map opened: name: %s, fd: %d\n",msdfs_map->name,msdfs_map->fd)); - - return True; -} - -BOOL add_junction_entry(struct junction_map* junction) -{ - struct tdb_junction_key* tlk; - struct tdb_junction_data* tld; - - TDB_DATA key,data; - uint16 data_size; - - int i=0; - - if(msdfs_map == NULL) - { - DEBUG(4,("Attempt to add junction entry to unopened %s\n",MSDFS_TDB)); - return False; - } - - /* create the key */ - if((tlk = (struct tdb_junction_key*) malloc(sizeof(struct tdb_junction_key))) == NULL) - { - DEBUG(0,("malloc failed for tdb junction key\n")); - return False; - } - - ZERO_STRUCTP(tlk); - - pstrcpy(tlk->service_name,junction->service_name); - pstrcpy(tlk->volume_name,junction->volume_name); - strupper(tlk->service_name); - strupper(tlk->volume_name); - - key.dptr = (char*) tlk; - key.dsize = sizeof(struct tdb_junction_key); - - - /* create the data */ - data_size = sizeof(struct tdb_junction_data) + - ((junction->referral_count-1)*sizeof(struct referral)); - - if( (tld = (struct tdb_junction_data*) malloc(data_size)) == NULL) - { - DEBUG(0,("malloc failed for tdb junction data\n")); - return False; - } - - tld->referral_count = junction->referral_count; - memcpy(&tld->first_referral,junction->referral_list,junction->referral_count * sizeof(struct referral)); - - data.dptr = (char*) tld; - data.dsize = data_size; - - DEBUG(10,("Storing key: .%s:%s.\n",tlk->service_name,tlk->volume_name)); - DEBUG(10,("Data: referral_count : %u\n",tld->referral_count)); - for(i=0;i<tld->referral_count;i++) - { - struct referral* ref = &(junction->referral_list[i]); - DEBUG(10,("Path %d: %s, proximity: %u, ttl: %u\n",i+1, - ref->alternate_path,ref->proximity,ref->ttl)); - } - - if( tdb_store(msdfs_map,key,data,TDB_REPLACE) != 0) - { - DEBUG(10,("Could not store referral for %s:%s \n", - junction->service_name, junction->volume_name)); - free(key.dptr); - free(data.dptr); - return False; - } - - free(key.dptr); - free(data.dptr); - return True; -} - -BOOL get_junction_entry(struct junction_map* junction) -{ - struct tdb_junction_key* tlk; - struct tdb_junction_data* tld; - - uint16 reflistsize=0; - - TDB_DATA key,data; - - if(msdfs_map == NULL) - { - DEBUG(4,("Attempt to get junction entry from unopened %s\n",MSDFS_TDB)); - return False; - } - - if( (tlk=(struct tdb_junction_key*) malloc(sizeof(struct tdb_junction_key))) == NULL) - { - DEBUG(0,("couldn't malloc for tdb junction key\n")); - return False; - } - - ZERO_STRUCTP(tlk); - - pstrcpy(tlk->service_name,junction->service_name); - pstrcpy(tlk->volume_name,junction->volume_name); - strupper(tlk->service_name); - strupper(tlk->volume_name); - - key.dptr = (char*) tlk; - key.dsize = sizeof(struct tdb_junction_key); - - data = tdb_fetch(msdfs_map,key); - - if(data.dptr == NULL) - { - DEBUG(8,("No data found for key %s:%s\n",junction->service_name,junction->volume_name)); - DEBUG(8,("Error was %s\n",strerror(errno))); - free(key.dptr); - return False; - } - - tld = (struct tdb_junction_data*) data.dptr; - - junction->referral_count = tld->referral_count; - reflistsize = junction->referral_count * sizeof(struct referral); - - if((junction->referral_list = (struct referral*) malloc(reflistsize) ) == NULL) - { - DEBUG(0,("malloc failed for referral list\n")); - free(key.dptr); - free(data.dptr); - return False; - } - - memcpy(junction->referral_list,&(tld->first_referral),reflistsize); - free(key.dptr); - free(data.dptr); - - return True; -} - -BOOL isDfsShare(char* svc,char* vol) -{ - TDB_DATA key; - struct tdb_junction_key tlk; - - ZERO_STRUCT(tlk); - - if(msdfs_map == NULL) - { - DEBUG(4,("Attempt to check junction existence in unopened %s\n",MSDFS_TDB)); - return False; - } - - pstrcpy(tlk.service_name,svc); - pstrcpy(tlk.volume_name,vol); - - strupper(tlk.service_name); - strupper(tlk.volume_name); - - key.dptr = (char*) &tlk; - key.dsize = sizeof(struct tdb_junction_key); - - DEBUG(10,("tdb_exists for key %s:%s returns %d\n",tlk.service_name,tlk.volume_name, - tdb_exists(msdfs_map,key))); - - if(tdb_exists(msdfs_map,key)) - return True; - else - { - DEBUG(10,("error was %s\n",strerror(errno))); - return False; - } - -} - -void msdfs_close(void) -{ - if(msdfs_map != NULL) - tdb_close(msdfs_map); - - msdfs_map = NULL; -} - -void msdfs_end(void) -{ - /* pstring fname; */ - msdfs_close(); - - /* pstrcpy(fname,lock_path(MSDFS_TDB)); - unlink(fname); */ -} -#endif - - - - - - - diff --git a/source/msdfs/parse_dfs_map.c b/source/msdfs/parse_dfs_map.c deleted file mode 100644 index 3680e627c87..00000000000 --- a/source/msdfs/parse_dfs_map.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 3.0 - MSDfs services for Samba - Copyright (C) Shirish Kalele 2000 - - 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. -*/ - -/*********************************************************************** - * Parses the per-service Dfs map file which is of the form: - * junction_point1 - * alternate_path1:proximity:ttl - * alternate_path2:proximity:ttl - * junction_point2 - * ... - * - * Junction points are directories in the service (upon encountering which - * Samba redirects the client to the servers hosting the underlying share) - * - * Alternate paths are of the form: \\smbserver\share - * Currently, the parser detects alternate paths by the leading \'s - * - ***********************************************************************/ - -#include "includes.h" - -#ifdef MS_DFS - -#define MAX_ALTERNATE_PATHS 256 - -extern int DEBUGLEVEL; - -static char* Dfs_Crop_Whitespace(char* line) -{ - int i=0; - int len = strlen(line); - - if(line[0]=='#' || line[0]==';') return NULL; - - for(i=0;i<len && line[i]==' ';i++); - - if(i>=len) return NULL; - - line = &line[i]; - - /* crop off the newline at the end, if present */ - /* if(line[len-1]=='\n') line[len-1]='\0'; */ - - /* remove white sace from the end */ - for(i=strlen(line)-1;i>=0 && isspace(line[i]);i--); - - if(i<0) return NULL; - - line[i]='\0'; - - if(line[0] == '\0') return NULL; - - return line; -} - -static BOOL parse_referral(char* s, struct referral* ref) -{ -#define MAXTOK_IN_REFERRAL 3 - char *tok[MAXTOK_IN_REFERRAL+1]; - int count=0; - int i=0; - - if(s[1]=='\\') s = &s[1]; /* skip one backslash - if there are two */ - - tok[count++] = strtok(s,":"); - - while( ((tok[count]=strtok(NULL,":")) != NULL) && count<MAXTOK_IN_REFERRAL) - count++; - - DEBUG(10,("parse_referral: Tokens")); - for(i=0;i<count;i++) - DEBUG(10,(" %s",tok[i])); - DEBUG(10,(".\n")); - if(count > 0) - pstrcpy(ref->alternate_path,tok[0]); - else - { - DEBUG(6,("Invalid referral line: %s\n",s)); - return False; - } - - if(count > 1) - ref->proximity = atoi(tok[1]); - else - ref->proximity = 0; - - if(count > 2) - ref->ttl = atoi(tok[2]); - else - ref->ttl = REFERRAL_TTL; - - return True; -} - -static BOOL load_dfsmap(char* fname, int snum) -{ - struct junction_map* junction = NULL; - struct referral tmp_ref_array[MAX_ALTERNATE_PATHS]; - int ref_count = 0; - FILE* fp; - - if(lp_dfsmap_loaded(snum)) - return True; - - if((fp = sys_fopen(fname,"r")) == NULL) - { - DEBUG(1,("can't open dfs map file %s for service [%s]\nError was %s",fname, - lp_servicename(snum), strerror(errno))); - return False; - } - - if(!msdfs_open(True)) - return False; - - while(!feof(fp)) - { - pstring rawline; - char* line; - - if(!fgets(rawline,PSTRING_LEN,fp)) - continue; - - if((line = Dfs_Crop_Whitespace(rawline)) == NULL) - continue; - - DEBUG(6,("load_dfsmap: Cropped line: %s\n",line)); - - /* the line contains a new junction or - an alternate path to current junction */ - - if(line[0]!='\\') - { - /* a junction encountered. add the current junction first */ - if(junction) - { - junction->referral_count = ref_count; - junction->referral_list = tmp_ref_array; - DEBUG(4,("Adding Dfs junction: %s\\%s Referrals: %u First referral path: %s\n", - junction->service_name,junction->volume_name, - junction->referral_count, junction->referral_list[0].alternate_path)); - - if(!add_junction_entry(junction)) - { - DEBUG(6,("Unable to add junction entry %s:%s after parsing\n", - junction->service_name,junction->volume_name)); - } - free(junction); - } - - /* then, create a new junction_map node */ - if((junction = (struct junction_map*) malloc(sizeof(struct junction_map))) == NULL) - { - DEBUG(0,("Couldn't malloc for Dfs junction_map node\n")); - return False; - } - pstrcpy(junction->service_name,lp_servicename(snum)); - pstrcpy(junction->volume_name,line); - ref_count = 0; - } - else - { - /* referral encountered. add to current junction */ - if(!junction) - { - DEBUG(4,("Invalid entry in Dfs map file.\nAlternate path defined outside of a junction in line:\n%s\n",line)); - return False; - } - - /* parse the referral */ - if(!parse_referral(line,&tmp_ref_array[ref_count])) - continue; - ref_count++; - - } - } - - /* End of file. Add the current junction and return */ - if(junction) - { - junction->referral_count = ref_count; - junction->referral_list = tmp_ref_array; - DEBUG(4,("Adding Dfs junction: %s\%s Referrals: %u First referral path: %s\n", - junction->service_name,junction->volume_name, - junction->referral_count, junction->referral_list[0].alternate_path)); - if(!add_junction_entry(junction)) - { - DEBUG(6,("Unable to add junction entry %s:%s after parsing\n", - junction->service_name,junction->volume_name)); - } - free(junction); - } - - fclose(fp); - msdfs_close(); - return True; -} - -void load_dfsmaps(void) -{ - int i=0; - if(!lp_host_msdfs()) - return; - - for(i=0;*lp_servicename(i) && *lp_dfsmap(i) - && !lp_dfsmap_loaded(i);i++) - { - char* dfsmapfile = lp_dfsmap(i); - DEBUG(4,("loading dfsmap for servicename: %s\n",lp_servicename(i))); - if(load_dfsmap(dfsmapfile,i)) - { - set_dfsmap_loaded(i,True); - } - else - { - DEBUG(0,("handle_dfsmap: Unable to load Dfs map file %s.\nService %s not using MS Dfs",dfsmapfile,lp_servicename(i))); - set_dfsmap_loaded(i,False); - } - - } -} - -#else -/* Stub function if MS_DFS is not defined */ - -void load_dfsmaps(void) -{} - -#endif - - - - - - - - |