/*
- Unix SMB/Netbios implementation.
- Version 3.0
+ Unix SMB/CIFS implementation.
MSDfs services for Samba
Copyright (C) Shirish Kalele 2000
#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
+/**********************************************************************
+ Create a tcon relative path from a dfs_path structure
+ **********************************************************************/
static void create_nondfs_path(char* pathname, struct dfs_path* pdp)
{
- pstrcpy(pathname,pdp->volumename);
- pstrcat(pathname,"\\");
- pstrcat(pathname,pdp->restofthepath);
+ 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 */
+/**********************************************************************
+ 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;
+ pstring pathname_local;
+ char* p,*temp;
+
+ pstrcpy(pathname_local,pathname);
+ p = temp = pathname_local;
+
+ ZERO_STRUCTP(pdp);
+
+ trim_string(temp,"\\","\\");
+ DEBUG(10,("temp in parse_dfs_path: .%s. after trimming \\'s\n",temp));
+
+ /* now tokenize */
+ /* parse out hostname */
+ p = strchr_m(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_m(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_m(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;
+}
- pstrcpy(pathname_local,pathname);
- p = temp = pathname_local;
+/********************************************************
+ Fake up a connection struct for the VFS layer.
+*********************************************************/
- ZERO_STRUCTP(pdp);
+static BOOL create_conn_struct( connection_struct *conn, int snum, char *path)
+{
+ ZERO_STRUCTP(conn);
+ conn->service = snum;
+ conn->connectpath = path;
+
+ if (!smbd_vfs_init(conn)) {
+ DEBUG(0,("create_conn_struct: vfs init failed.\n"));
+ return False;
+ }
+ return True;
+}
- /* strip off all \'s from the beginning */
- /* while(*temp=='\\') temp++;
+/**********************************************************************
+ Forms a valid Unix pathname from the junction
+ **********************************************************************/
+
+static BOOL form_path_from_junction(struct junction_map* jn, char* path, int max_pathlen,
+ connection_struct *conn)
+{
+ int snum;
+
+ if(!path || !jn)
+ return False;
+
+ snum = lp_servicenumber(jn->service_name);
+ if(snum < 0)
+ return False;
+
+ safe_strcpy(path, lp_pathname(snum), max_pathlen-1);
+ safe_strcat(path, "/", max_pathlen-1);
+ strlower(jn->volume_name);
+ safe_strcat(path, jn->volume_name, max_pathlen-1);
+
+ if (!create_conn_struct(conn, snum, path))
+ return False;
+
+ return True;
+}
+
+/**********************************************************************
+ Creates a junction structure from the Dfs pathname
+ **********************************************************************/
+
+BOOL create_junction(char* pathname, struct junction_map* jn)
+{
+ struct dfs_path dp;
- DEBUG(10,("temp in parse_dfs_path : .%s.\n",temp));
+ parse_dfs_path(pathname,&dp);
- remove any trailing \'s
- if(temp[strlen(temp)-1] == '\\') temp[strlen(temp)-1]='\0';
-*/
+ /* check if path is dfs : check hostname is the first token */
+ if(global_myname && (strcasecmp(global_myname,dp.hostname)!=0)) {
+ DEBUG(4,("create_junction: Invalid hostname %s in dfs path %s\n", dp.hostname, pathname));
+ return False;
+ }
+
+ /* Check for a non-DFS share */
+ if(!lp_msdfs_root(lp_servicenumber(dp.servicename))) {
+ DEBUG(4,("create_junction: %s is not an msdfs root.\n", dp.servicename));
+ return False;
+ }
+
+ pstrcpy(jn->service_name,dp.servicename);
+ pstrcpy(jn->volume_name,dp.volumename);
+ return True;
+}
+
+/**********************************************************************
+ Parse the contents of a symlink to verify if it is an msdfs referral
+ A valid referral is of the form: msdfs:server1\share1,server2\share2
+ **********************************************************************/
+
+static BOOL parse_symlink(char* buf,struct referral** preflist, int* refcount)
+{
+ pstring temp;
+ char* prot;
+ char* alt_path[MAX_REFERRAL_COUNT];
+ int count=0, i;
+ struct referral* reflist;
+
+ pstrcpy(temp,buf);
+
+ prot = strtok(temp,":");
+
+ if(!strequal(prot, "msdfs"))
+ return False;
+
+ /* It's an msdfs referral */
+ if(!preflist)
+ return True;
- 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;
+ /* parse out the alternate paths */
+ while(((alt_path[count] = strtok(NULL,",")) != NULL) && count<MAX_REFERRAL_COUNT)
+ count++;
+
+ DEBUG(10,("parse_symlink: count=%d\n", count));
+
+ reflist = *preflist = (struct referral*) malloc(count * sizeof(struct referral));
+ if(reflist == NULL) {
+ DEBUG(0,("parse_symlink: Malloc failed!\n"));
+ return False;
+ }
+
+ for(i=0;i<count;i++) {
+ /* replace / in the alternate path by a \ */
+ char* p = strchr_m(alt_path[i],'/');
+ if(p)
+ *p = '\\';
+
+ pstrcpy(reflist[i].alternate_path, "\\");
+ pstrcat(reflist[i].alternate_path, alt_path[i]);
+ reflist[i].proximity = 0;
+ reflist[i].ttl = REFERRAL_TTL;
+ DEBUG(10, ("parse_symlink: Created alt path: %s\n", reflist[i].alternate_path));
+ }
+
+ if(refcount)
+ *refcount = count;
+
+ return True;
}
+
+/**********************************************************************
+ Returns true if the unix path is a valid msdfs symlink
+ **********************************************************************/
+
+BOOL is_msdfs_link(connection_struct* conn, char* path)
+{
+ SMB_STRUCT_STAT st;
+ pstring referral;
+ int referral_len = 0;
+ if(!path || !conn)
+ return False;
+
+ strlower(path);
+
+ if(conn->vfs_ops.lstat(conn,path,&st) != 0) {
+ DEBUG(5,("is_msdfs_link: %s does not exist.\n",path));
+ return False;
+ }
+
+ if(S_ISLNK(st.st_mode)) {
+ /* open the link and read it */
+ referral_len = conn->vfs_ops.readlink(conn, path, referral, sizeof(pstring));
+ if(referral_len == -1)
+ DEBUG(0,("is_msdfs_link: Error reading msdfs link %s: %s\n", path, strerror(errno)));
+
+ referral[referral_len] = '\0';
+ DEBUG(5,("is_msdfs_link: %s -> %s\n",path,referral));
+ if(parse_symlink(referral, NULL, NULL))
+ return True;
+ }
+ return False;
+}
+
+/**********************************************************************
+ Fills in the junction_map struct with the referrals from the
+ symbolic link
+ **********************************************************************/
+
+BOOL get_referred_path(struct junction_map* junction)
+{
+ pstring path;
+ pstring buf;
+ SMB_STRUCT_STAT st;
+ connection_struct conns;
+ connection_struct *conn = &conns;
+
+ if(!form_path_from_junction(junction, path, sizeof(path), conn))
+ return False;
+
+ DEBUG(5,("get_referred_path: lstat target: %s\n", path));
+
+ if(conn->vfs_ops.lstat(conn,path,&st) != 0) {
+ DEBUG(5,("get_referred_path: %s does not exist.\n",path));
+ return False;
+ }
+
+ if(S_ISLNK(st.st_mode)) {
+ /* open the link and read it to get the dfs referral */
+ int linkcnt = 0;
+ linkcnt = conn->vfs_ops.readlink(conn, path, buf, sizeof(buf));
+ buf[linkcnt] = '\0';
+ DEBUG(5,("get_referred_path: Referral: %s\n",buf));
+ if(parse_symlink(buf, &junction->referral_list, &junction->referral_count))
+ return True;
+ }
+ return False;
+}
/**************************************************************
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;
- }
+ struct dfs_path dp;
+ pstring temp;
+ fstring path;
+
+ pstrcpy(temp,pathname);
+
+ if(!lp_msdfs_root(SNUM(conn)) )
+ return False;
+
+ parse_dfs_path(pathname,&dp);
+
+ if(global_myname && (strcasecmp(global_myname,dp.hostname)!=0))
+ return False;
+
+ /* check if need to redirect */
+ fstrcpy(path, conn->connectpath);
+ fstrcat(path, "/");
+ fstrcat(path, dp.volumename);
+ if(is_msdfs_link(conn, path)) {
+ 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;
+ }
}
/*
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)
+BOOL dfs_findfirst_redirect(char* pathname, connection_struct* conn)
{
- struct dfs_path dp;
+ struct dfs_path dp;
- struct junction_map junction;
+ pstring temp;
- BOOL self_referral;
+ pstrcpy(temp,pathname);
- char* pdata = *ppdata;
- int reply_size = 0;
-
- ZERO_STRUCT(junction);
-
- parse_dfs_path(pathname,&dp);
+ /* Is the path Dfs-redirectable? */
+ if(!dfs_redirect(temp,conn)) {
+ pstrcpy(pathname,temp);
+ return False;
+ }
- /* 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;
- }
+ 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))) {
+ create_nondfs_path(pathname,&dp);
+ return False;
+ }
- /* 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;
- }
+ return True;
+}
- pstrcpy(junction.service_name,dp.servicename);
- pstrcpy(junction.volume_name,dp.volumename);
+static int setup_ver2_dfs_referral(char* pathname, char** ppdata,
+ struct junction_map* junction,
+ BOOL self_referral)
+{
+ char* pdata = *ppdata;
- /* 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 reply_size = 0;
int i=0;
DEBUG(10,("setting up version2 referral\nRequested path:\n"));
- requestedpathlen = (dos_struni2(uni_requestedpath,pathname,512)+1)*2;
+ requestedpathlen = rpcstr_push(uni_requestedpath, pathname, -1,
+ STR_TERMINATE);
- dump_data(10,uni_requestedpath,requestedpathlen);
+ dump_data(10,(const char *)uni_requestedpath,requestedpathlen);
- DEBUG(10,("ref count = %u\n",junction.referral_count));
+ DEBUG(10,("ref count = %u\n",junction->referral_count));
uni_reqpathoffset1 = REFERRAL_HEADER_SIZE +
- VERSION2_REFERRAL_SIZE * junction.referral_count;
+ 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;
+ 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;
- }
+ 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;
- }
+ pdata = Realloc(pdata,reply_size);
+ if(pdata == NULL) {
+ DEBUG(0,("malloc failed for Realloc!\n"));
+ return -1;
+ }
+ else *ppdata = pdata;
/* 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 */
+ SSVAL(pdata,2,junction->referral_count); /* number of referral in this pkt */
if(self_referral)
- SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER);
+ SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER);
else
- SIVAL(pdata,4,DFSREF_STORAGE_SERVER);
+ 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;
- }
+ 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 = rpcstr_push(pdata+uni_curroffset, ref->alternate_path,
+ -1, STR_UNICODE);
+ 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;
- }
+ SAFE_FREE(junction->referral_list);
+ return reply_size;
+}
+
+static int setup_ver3_dfs_referral(char* pathname, char** ppdata,
+ struct junction_map* junction,
+ BOOL self_referral)
+{
+ char* pdata = *ppdata;
- case 3:
- {
unsigned char uni_reqpath[1024];
int uni_reqpathoffset1, uni_reqpathoffset2;
int uni_curroffset;
+ int reply_size = 0;
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);
+ reqpathlen = rpcstr_push(uni_reqpath, pathname, -1, STR_TERMINATE);
+
+ dump_data(10,(const char *)uni_reqpath,reqpathlen);
- uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + VERSION3_REFERRAL_SIZE *
- junction.referral_count;
+ 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;
- }
+ 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 = Realloc(pdata,reply_size);
+ if(pdata == NULL) {
+ DEBUG(0,("version3 referral setup: malloc failed for Realloc!\n"));
+ return -1;
+ }
+ else *ppdata = pdata;
/* create the header */
SSVAL(pdata,0,reqpathlen-2); /* path consumed */
- SSVAL(pdata,2,junction.referral_count); /* number of referral in this pkt */
+ SSVAL(pdata,2,junction->referral_count); /* number of referral in this pkt */
if(self_referral)
- SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER);
+ SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER);
else
- SIVAL(pdata,4,DFSREF_STORAGE_SERVER);
+ 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);
+ 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;
+ SSVAL(pdata,offset+12,uni_reqpathoffset1-offset);
+ SSVAL(pdata,offset+14,uni_reqpathoffset2-offset);
+ /* copy referred path into current offset */
+
+ unilen = rpcstr_push(pdata+uni_curroffset, ref->alternate_path,
+ -1, STR_UNICODE|STR_TERMINATE);
+ 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;
+ }
+ SAFE_FREE(junction->referral_list);
+ return reply_size;
}
-int dfs_path_error(char* inbuf, char* outbuf)
+/******************************************************************
+ * Set up the Dfs referral for the dfs pathname
+ ******************************************************************/
+
+int setup_dfs_referral(char* pathname, int max_referral_level, char** ppdata)
{
- 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));
+ struct junction_map junction;
+
+ BOOL self_referral;
+
+ int reply_size = 0;
+
+ ZERO_STRUCT(junction);
+
+ if(!create_junction(pathname, &junction))
+ return -1;
+
+ /* get the junction entry */
+ if(!get_referred_path(&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: Path %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:
+ {
+ reply_size = setup_ver2_dfs_referral(pathname, ppdata, &junction, self_referral);
+ break;
+ }
+ case 3:
+ {
+ reply_size = setup_ver3_dfs_referral(pathname, ppdata, &junction, self_referral);
+ break;
+ }
+ default:
+ {
+ DEBUG(0,("setup_dfs_referral: Invalid dfs referral version: %d\n", max_referral_level));
+ return -1;
+ }
+ }
+
+ DEBUG(10,("DFS Referral pdata:\n"));
+ dump_data(10,*ppdata,reply_size);
+ return reply_size;
+}
+
+/**********************************************************************
+ The following functions are called by the NETDFS RPC pipe functions
+ **********************************************************************/
+
+BOOL create_msdfs_link(struct junction_map* jn, BOOL exists)
+{
+ pstring path;
+ pstring msdfs_link;
+ connection_struct conns;
+ connection_struct *conn = &conns;
+ int i=0;
+
+ if(!form_path_from_junction(jn, path, sizeof(path), conn))
+ return False;
+
+ /* form the msdfs_link contents */
+ pstrcpy(msdfs_link, "msdfs:");
+ for(i=0; i<jn->referral_count; i++) {
+ char* refpath = jn->referral_list[i].alternate_path;
+
+ trim_string(refpath, "\\", "\\");
+ if(*refpath == '\0')
+ continue;
+
+ if(i>0)
+ pstrcat(msdfs_link, ",");
+
+ pstrcat(msdfs_link, refpath);
+ }
+
+ DEBUG(5,("create_msdfs_link: Creating new msdfs link: %s -> %s\n", path, msdfs_link));
+
+ if(exists)
+ if(conn->vfs_ops.unlink(conn,path)!=0)
+ return False;
+
+ if(conn->vfs_ops.symlink(conn, msdfs_link, path) < 0) {
+ DEBUG(1,("create_msdfs_link: symlink failed %s -> %s\nError: %s\n",
+ path, msdfs_link, strerror(errno)));
+ return False;
+ }
+ return True;
}
-#else
-/* Stub functions if MS_DFS not defined */
-int setup_dfs_referral(char* pathname, int max_referral_level,
- char** ppdata)
+BOOL remove_msdfs_link(struct junction_map* jn)
{
- return -1;
+ pstring path;
+ connection_struct conns;
+ connection_struct *conn = &conns;
+
+ if(!form_path_from_junction(jn, path, sizeof(path), conn))
+ return False;
+
+ if(conn->vfs_ops.unlink(conn, path)!=0)
+ return False;
+
+ return True;
}
-#endif
+static BOOL form_junctions(int snum, struct junction_map* jn, int* jn_count)
+{
+ int cnt = *jn_count;
+ DIR *dirp;
+ char* dname;
+ pstring connect_path;
+ char* service_name = lp_servicename(snum);
+ connection_struct conns;
+ connection_struct *conn = &conns;
+
+ pstrcpy(connect_path,lp_pathname(snum));
+
+ if(*connect_path == '\0')
+ return False;
+
+ /*
+ * Fake up a connection struct for the VFS layer.
+ */
+
+ if (!create_conn_struct(conn, snum, connect_path))
+ return False;
+
+ /* form a junction for the msdfs root - convention */
+ /*
+ pstrpcy(jn[cnt].service_name, service_name);
+ jn[cnt].volume_name[0] = '\0';
+ jn[cnt].referral_count = 1;
+
+ slprintf(alt_path,sizeof(alt_path)-1"\\\\%s\\%s", global_myname, service_name);
+ jn[cnt].referral_l
+ */
+
+ dirp = conn->vfs_ops.opendir(conn, connect_path);
+ if(!dirp)
+ return False;
+
+ while((dname = vfs_readdirname(conn, dirp)) != NULL) {
+ SMB_STRUCT_STAT st;
+ pstring pathreal;
+ fstring buf;
+ int buflen = 0;
+ pstrcpy(pathreal, connect_path);
+ pstrcat(pathreal, "/");
+ pstrcat(pathreal, dname);
+
+ if(conn->vfs_ops.lstat(conn,pathreal,&st) != 0) {
+ DEBUG(4,("lstat error for %s: %s\n",pathreal, strerror(errno)));
+ continue;
+ }
+ if(S_ISLNK(st.st_mode)) {
+ buflen = conn->vfs_ops.readlink(conn, pathreal, buf, sizeof(fstring));
+ buf[buflen] = '\0';
+ if(parse_symlink(buf, &(jn[cnt].referral_list), &(jn[cnt].referral_count))) {
+ pstrcpy(jn[cnt].service_name, service_name);
+ pstrcpy(jn[cnt].volume_name, dname);
+ cnt++;
+ }
+ }
+ }
+
+ conn->vfs_ops.closedir(conn,dirp);
+ *jn_count = cnt;
+ return True;
+}
-/* Trivial fn that chops off upper bytes to convert unicode to dos */
-void unistr_to_dos(char* dst,char* src)
+int enum_msdfs_links(struct junction_map* jn)
{
- pstring s;
- int i=0;
+ int i=0;
+ int jn_count = 0;
- for(i=0;SVAL(src,i*2) && i<1024;i++)
- {
- s[i]= SVAL(src,i*2) & 0xff;
- }
- s[i]=0;
+ if(!lp_host_msdfs())
+ return -1;
- safe_strcpy(dst,s,1024);
- DEBUG(10,("converted unistring to %s\n",s));
+ for(i=0;*lp_servicename(i);i++) {
+ if(lp_msdfs_root(i))
+ form_junctions(i,jn,&jn_count);
+ }
+ return jn_count;
}
git.samba.org / ira / wip.git / blobdiff