diff options
Diffstat (limited to 'source3/msdfs')
-rw-r--r-- | source3/msdfs/msdfs.c | 618 |
1 files changed, 239 insertions, 379 deletions
diff --git a/source3/msdfs/msdfs.c b/source3/msdfs/msdfs.c index 3e66c1c10c..5ddf7f84f8 100644 --- a/source3/msdfs/msdfs.c +++ b/source3/msdfs/msdfs.c @@ -1,6 +1,5 @@ /* - Unix SMB/Netbios implementation. - Version 3.0 + Unix SMB/CIFS implementation. MSDfs services for Samba Copyright (C) Shirish Kalele 2000 @@ -17,16 +16,25 @@ 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 fstring local_machine; -extern uint32 global_client_caps; +extern pstring global_myname; + +/********************************************************************** + 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); +} /********************************************************************** - Parse the pathname of the form \hostname\service\reqpath + Parse the pathname of the form \hostname\service\volume\restofthepath into the dfs_path structure **********************************************************************/ @@ -45,7 +53,7 @@ static BOOL parse_dfs_path(char* pathname, struct dfs_path* pdp) /* now tokenize */ /* parse out hostname */ - p = strchr(temp,'\\'); + p = strchr_m(temp,'\\'); if(p == NULL) return False; *p = '\0'; @@ -54,25 +62,29 @@ static BOOL parse_dfs_path(char* pathname, struct dfs_path* pdp) /* parse out servicename */ temp = p+1; - p = strchr(temp,'\\'); + p = strchr_m(temp,'\\'); if(p == NULL) { pstrcpy(pdp->servicename,temp); - pdp->reqpath[0] = '\0'; return True; } *p = '\0'; pstrcpy(pdp->servicename,temp); DEBUG(10,("servicename: %s\n",pdp->servicename)); - /* rest is reqpath */ - pstrcpy(pdp->reqpath, p+1); - p = pdp->reqpath; - while (*p) { - if (*p == '\\') *p = '/'; - p++; + /* 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)); - DEBUG(10,("rest of the path: %s\n",pdp->reqpath)); + /* remaining path .. */ + pstrcpy(pdp->restofthepath,p+1); + DEBUG(10,("rest of the path: %s\n",pdp->restofthepath)); return True; } @@ -85,22 +97,74 @@ static BOOL create_conn_struct( connection_struct *conn, int snum, char *path) ZERO_STRUCTP(conn); conn->service = snum; conn->connectpath = path; - pstring_sub(conn->connectpath , "%S", lp_servicename(snum)); if (!smbd_vfs_init(conn)) { - DEBUG(0,("create_conn_struct: smbd_vfs_init failed.\n")); + DEBUG(0,("create_conn_struct: vfs init failed.\n")); return False; } return True; } +/********************************************************************** + 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; + + 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,("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) + +static BOOL parse_symlink(char* buf,struct referral** preflist, int* refcount) { pstring temp; char* prot; @@ -112,11 +176,11 @@ static BOOL parse_symlink(char* buf,struct referral** preflist, prot = strtok(temp,":"); - if (!strequal(prot, "msdfs")) + if(!strequal(prot, "msdfs")) return False; - /* No referral list requested. Just yes/no. */ - if (!preflist) + /* It's an msdfs referral */ + if(!preflist) return True; /* parse out the alternate paths */ @@ -130,10 +194,10 @@ static BOOL parse_symlink(char* buf,struct referral** preflist, 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(alt_path[i],'/'); + char* p = strchr_m(alt_path[i],'/'); if(p) *p = '\\'; @@ -153,260 +217,134 @@ static BOOL parse_symlink(char* buf,struct referral** preflist, /********************************************************************** Returns true if the unix path is a valid msdfs symlink **********************************************************************/ -BOOL is_msdfs_link(connection_struct* conn, char* path, - struct referral** reflistp, int* refcnt, - SMB_STRUCT_STAT *sbufp) + +BOOL is_msdfs_link(connection_struct* conn, char* path) { SMB_STRUCT_STAT st; pstring referral; int referral_len = 0; - if (!path || !conn) + if(!path || !conn) return False; strlower(path); - if (sbufp == NULL) - sbufp = &st; - - if (conn->vfs_ops.lstat(conn, path, sbufp) != 0) { + 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(sbufp->st_mode)) { + 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) { + 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))); - return False; - } referral[referral_len] = '\0'; DEBUG(5,("is_msdfs_link: %s -> %s\n",path,referral)); - if (parse_symlink(referral, reflistp, refcnt)) + if(parse_symlink(referral, NULL, NULL)) return True; } return False; } -/***************************************************************** - Used by other functions to decide if a dfs path is remote, -and to get the list of referred locations for that remote path. - -findfirst_flag: For findfirsts, dfs links themselves are not -redirected, but paths beyond the links are. For normal smb calls, -even dfs links need to be redirected. - -self_referralp: clients expect a dfs referral for the same share when -they request referrals for dfs roots on a server. - -consumedcntp: how much of the dfs path is being redirected. the client -should try the remaining path on the redirected server. -*****************************************************************/ -static BOOL resolve_dfs_path(char* dfspath, struct dfs_path* dp, - connection_struct* conn, - BOOL findfirst_flag, - struct referral** reflistpp, int* refcntp, - BOOL* self_referralp, int* consumedcntp) -{ - fstring localpath; - - char *p; - fstring reqpath; +/********************************************************************** + Fills in the junction_map struct with the referrals from the + symbolic link + **********************************************************************/ - if (!dp || !conn) { - DEBUG(1,("resolve_dfs_path: NULL dfs_path* or NULL connection_struct*!\n")); +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; - } - if (dp->reqpath[0] == '\0') { - if (self_referralp) { - DEBUG(6,("resolve_dfs_path: self-referral. returning False\n")); - *self_referralp = True; - } + 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; } - - /* check if need to redirect */ - fstrcpy(localpath, conn->connectpath); - fstrcat(localpath, "/"); - fstrcat(localpath, dp->reqpath); - if (is_msdfs_link(conn, localpath, reflistpp, refcntp, NULL)) { - if (findfirst_flag) { - DEBUG(6,("resolve_dfs_path (FindFirst) No redirection " - "for dfs link %s.\n", dfspath)); - return False; - } else { - DEBUG(6,("resolve_dfs_path: %s resolves to a valid Dfs link.\n", - dfspath)); - if (consumedcntp) - *consumedcntp = strlen(dfspath); - return True; - } - } - - /* also redirect if the parent directory is a dfs link */ - fstrcpy(reqpath, dp->reqpath); - p = strrchr(reqpath, '/'); - if (p) { - *p = '\0'; - fstrcpy(localpath, conn->connectpath); - fstrcat(localpath, "/"); - fstrcat(localpath, reqpath); - if (is_msdfs_link(conn, localpath, reflistpp, refcntp, NULL)) { - DEBUG(4, ("resolve_dfs_path: Redirecting %s because parent %s is dfs link\n", dfspath, localpath)); - - /* To find the path consumed, we truncate the original - DFS pathname passed to use to remove the last - component. The length of the resulting string is - the path consumed - */ - if (consumedcntp) { - char *q; - pstring buf; - safe_strcpy(buf, dfspath, sizeof(buf)); - trim_string(buf, NULL, "\\"); - q = strrchr(buf, '\\'); - if (q) - *q = '\0'; - *consumedcntp = strlen(buf); - DEBUG(10, ("resolve_dfs_path: Path consumed: %d\n", *consumedcntp)); - } - + + 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 a dfs pathname should be redirected or not. - If not, the pathname is converted to a tcon-relative local unix path -*****************************************************************/ -BOOL dfs_redirect(char* pathname, connection_struct* conn, - BOOL findfirst_flag) +/************************************************************** +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; - - if (!conn || !pathname) - return False; + pstring temp; + fstring path; - parse_dfs_path(pathname, &dp); + pstrcpy(temp,pathname); - /* if dfs pathname for a non-dfs share, convert to tcon-relative - path and return false */ - if (!lp_msdfs_root(SNUM(conn))) { - fstrcpy(pathname, dp.reqpath); + if(!lp_msdfs_root(SNUM(conn)) ) return False; - } - - if (strcasecmp(dp.servicename, lp_servicename(SNUM(conn)) ) != 0) + + parse_dfs_path(pathname,&dp); + + if(global_myname && (strcasecmp(global_myname,dp.hostname)!=0)) return False; - if (resolve_dfs_path(pathname, &dp, conn, findfirst_flag, - NULL, NULL, NULL, NULL)) { - DEBUG(3,("dfs_redirect: Redirecting %s\n", pathname)); + /* 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 { - DEBUG(3,("dfs_redirect: Not redirecting %s.\n", pathname)); - - /* Form non-dfs tcon-relative path */ - fstrcpy(pathname, dp.reqpath); - DEBUG(3,("dfs_redirect: Path converted to non-dfs path %s\n", - pathname)); + create_nondfs_path(pathname,&dp); + DEBUG(4,("dfs_redirect: Not redirecting %s. Converted to non-dfs pathname \'%s\'\n", + temp,pathname)); return False; } - /* never reached */ - return False; } -/********************************************************************** - Gets valid referrals for a dfs path and fills up the - junction_map structure - **********************************************************************/ -BOOL get_referred_path(char *pathname, struct junction_map* jn, - int* consumedcntp, BOOL* self_referralp) +/* + 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; - struct connection_struct conns; - struct connection_struct* conn = &conns; - pstring conn_path; - int snum; - - BOOL self_referral = False; - - if (!pathname || !jn) - return False; - - if (self_referralp) - *self_referralp = False; - else - self_referralp = &self_referral; - - parse_dfs_path(pathname, &dp); - - /* Verify hostname in path */ - if (local_machine && (strcasecmp(local_machine, dp.hostname) != 0)) { + pstrcpy(temp,pathname); - /* Hostname mismatch, check if one of our IP addresses */ - if (!ismyip(*interpret_addr2(dp.hostname))) { - - DEBUG(3, ("get_referred_path: Invalid hostname %s in path %s\n", - dp.hostname, pathname)); + /* Is the path Dfs-redirectable? */ + if(!dfs_redirect(temp,conn)) { + pstrcpy(pathname,temp); return False; - } } - pstrcpy(jn->service_name, dp.servicename); - pstrcpy(jn->volume_name, dp.reqpath); - - /* Verify the share is a dfs root */ - snum = lp_servicenumber(jn->service_name); - if(snum < 0) { - if ((snum = find_service(jn->service_name)) < 0) - return False; - } - - pstrcpy(conn_path, lp_pathname(snum)); - if (!create_conn_struct(conn, snum, conn_path)) + 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; - - if (!lp_msdfs_root(SNUM(conn))) { - DEBUG(3,("get_referred_path: .%s. in dfs path %s is not a dfs root.\n", - dp.servicename, pathname)); - return False; - } - - /* If not remote & not a self referral, return False */ - if (!resolve_dfs_path(pathname, &dp, conn, False, - &jn->referral_list, &jn->referral_count, - self_referralp, consumedcntp)) { - if (!*self_referralp) { - DEBUG(3,("get_referred_path: No valid referrals for path %s\n", pathname)); - return False; - } - } - - /* if self_referral, fill up the junction map */ - if (*self_referralp) { - struct referral* ref; - jn->referral_count = 1; - if((ref = (struct referral*) malloc(sizeof(struct referral))) - == NULL) { - DEBUG(0,("malloc failed for referral\n")); - return False; - } - - pstrcpy(ref->alternate_path,pathname); - ref->proximity = 0; - ref->ttl = REFERRAL_TTL; - jn->referral_list = ref; - if (consumedcntp) - *consumedcntp = strlen(pathname); } return True; @@ -414,7 +352,6 @@ BOOL get_referred_path(char *pathname, struct junction_map* jn, static int setup_ver2_dfs_referral(char* pathname, char** ppdata, struct junction_map* junction, - int consumedcnt, BOOL self_referral) { char* pdata = *ppdata; @@ -429,10 +366,10 @@ static int setup_ver2_dfs_referral(char* pathname, char** ppdata, DEBUG(10,("setting up version2 referral\nRequested path:\n")); - requestedpathlen = rpcstr_push(uni_requestedpath, pathname, -1, - STR_TERMINATE); + requestedpathlen = rpcstr_push(uni_requestedpath, pathname, -1, + STR_TERMINATE); - dump_data(10, (const char *) uni_requestedpath,requestedpathlen); + dump_data(10,(const char *)uni_requestedpath,requestedpathlen); DEBUG(10,("ref count = %u\n",junction->referral_count)); @@ -461,15 +398,15 @@ static int setup_ver2_dfs_referral(char* pathname, char** ppdata, if(pdata == NULL) { DEBUG(0,("malloc failed for Realloc!\n")); return -1; - } else - *ppdata = pdata; + } + 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,consumedcnt * 2); /* path consumed */ + 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); @@ -495,9 +432,8 @@ static int setup_ver2_dfs_referral(char* pathname, char** ppdata, 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); - + unilen = rpcstr_push(pdata+uni_curroffset, ref->alternate_path, + -1, STR_UNICODE); SSVAL(pdata,offset+20,uni_curroffset-offset); uni_curroffset += unilen; @@ -505,12 +441,12 @@ static int setup_ver2_dfs_referral(char* pathname, char** ppdata, } /* add in the unexplained 22 (0x16) bytes at the end */ memset(pdata+uni_curroffset,'\0',0x16); + SAFE_FREE(junction->referral_list); return reply_size; } static int setup_ver3_dfs_referral(char* pathname, char** ppdata, struct junction_map* junction, - int consumedcnt, BOOL self_referral) { char* pdata = *ppdata; @@ -525,9 +461,9 @@ static int setup_ver3_dfs_referral(char* pathname, char** ppdata, DEBUG(10,("setting up version3 referral\n")); - reqpathlen = rpcstr_push(uni_reqpath, pathname, -1, STR_TERMINATE); - - dump_data(10, (char *) 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_reqpathoffset2 = uni_reqpathoffset1 + reqpathlen; @@ -542,12 +478,12 @@ static int setup_ver3_dfs_referral(char* pathname, char** ppdata, if(pdata == NULL) { DEBUG(0,("version3 referral setup: malloc failed for Realloc!\n")); return -1; - } else - *ppdata = pdata; - + } + else *ppdata = pdata; + /* create the header */ - SSVAL(pdata,0,consumedcnt * 2); /* path consumed */ - SSVAL(pdata,2,junction->referral_count); /* number of referral */ + 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 @@ -575,8 +511,9 @@ static int setup_ver3_dfs_referral(char* pathname, char** ppdata, 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); + + 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); @@ -584,6 +521,7 @@ static int setup_ver3_dfs_referral(char* pathname, char** ppdata, uni_curroffset += unilen; offset += VERSION3_REFERRAL_SIZE; } + SAFE_FREE(junction->referral_list); return reply_size; } @@ -594,43 +532,43 @@ static int setup_ver3_dfs_referral(char* pathname, char** ppdata, int setup_dfs_referral(char* pathname, int max_referral_level, char** ppdata) { struct junction_map junction; - int consumedcnt; - BOOL self_referral = False; - pstring buf; - int reply_size = 0; - char *pathnamep = pathname; - ZERO_STRUCT(junction); + BOOL self_referral; - /* get the junction entry */ - if (!pathnamep) - return -1; + int reply_size = 0; - /* Trim pathname sent by client so it begins with only one backslash. - Two backslashes confuse some dfs clients - */ - while (strlen(pathnamep) > 1 && pathnamep[0] == '\\' - && pathnamep[1] == '\\') - pathnamep++; + ZERO_STRUCT(junction); - safe_strcpy(buf, pathnamep, sizeof(buf)); - if (!get_referred_path(buf, &junction, &consumedcnt, - &self_referral)) + if(!create_junction(pathname, &junction)) return -1; - - if (!self_referral) - { - pathnamep[consumedcnt] = '\0'; + /* 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):",pathnamep); + 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) @@ -639,16 +577,12 @@ int setup_dfs_referral(char* pathname, int max_referral_level, char** ppdata) switch(max_referral_level) { case 2: { - reply_size = setup_ver2_dfs_referral(pathnamep, ppdata, &junction, - consumedcnt, self_referral); - SAFE_FREE(junction.referral_list); + reply_size = setup_ver2_dfs_referral(pathname, ppdata, &junction, self_referral); break; } case 3: { - reply_size = setup_ver3_dfs_referral(pathnamep, ppdata, &junction, - consumedcnt, self_referral); - SAFE_FREE(junction.referral_list); + reply_size = setup_ver3_dfs_referral(pathname, ppdata, &junction, self_referral); break; } default: @@ -667,67 +601,6 @@ int setup_dfs_referral(char* pathname, int max_referral_level, char** ppdata) The following functions are called by the NETDFS RPC pipe functions **********************************************************************/ -/********************************************************************** - Creates a junction structure from a Dfs pathname - **********************************************************************/ -BOOL create_junction(char* pathname, struct junction_map* jn) -{ - struct dfs_path dp; - - parse_dfs_path(pathname,&dp); - - /* check if path is dfs : validate first token */ - if (local_machine && (strcasecmp(local_machine,dp.hostname)!=0)) { - - /* Hostname mismatch, check if one of our IP addresses */ - if (!ismyip(*interpret_addr2(dp.hostname))) { - 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.reqpath); - return True; -} - -/********************************************************************** - Forms a valid Unix pathname from the junction - **********************************************************************/ - -static BOOL junction_to_local_path(struct junction_map* jn, char* path, - int max_pathlen, connection_struct *conn) -{ - int snum; - pstring conn_path; - - 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); - - pstrcpy(conn_path, lp_pathname(snum)); - if (!create_conn_struct(conn, snum, conn_path)) - return False; - - return True; -} - BOOL create_msdfs_link(struct junction_map* jn, BOOL exists) { pstring path; @@ -735,9 +608,8 @@ BOOL create_msdfs_link(struct junction_map* jn, BOOL exists) connection_struct conns; connection_struct *conn = &conns; int i=0; - BOOL insert_comma = False; - if(!junction_to_local_path(jn, path, sizeof(path), conn)) + if(!form_path_from_junction(jn, path, sizeof(path), conn)) return False; /* form the msdfs_link contents */ @@ -746,18 +618,13 @@ BOOL create_msdfs_link(struct junction_map* jn, BOOL exists) char* refpath = jn->referral_list[i].alternate_path; trim_string(refpath, "\\", "\\"); - if(*refpath == '\0') { - if (i == 0) - insert_comma = False; + if(*refpath == '\0') continue; - } - if (i > 0 && insert_comma) + + if(i>0) pstrcat(msdfs_link, ","); - + pstrcat(msdfs_link, refpath); - if (!insert_comma) - insert_comma = True; - } DEBUG(5,("create_msdfs_link: Creating new msdfs link: %s -> %s\n", path, msdfs_link)); @@ -780,7 +647,7 @@ BOOL remove_msdfs_link(struct junction_map* jn) connection_struct conns; connection_struct *conn = &conns; - if(!junction_to_local_path(jn, path, sizeof(path), conn)) + if(!form_path_from_junction(jn, path, sizeof(path), conn)) return False; if(conn->vfs_ops.unlink(conn, path)!=0) @@ -811,50 +678,44 @@ static BOOL form_junctions(int snum, struct junction_map* jn, int* jn_count) if (!create_conn_struct(conn, snum, connect_path)) return False; - { - /* form a junction for the msdfs root - convention - DO NOT REMOVE THIS: NT clients will not work with us - if this is not present - */ - struct referral *ref = NULL; - pstring alt_path; - pstrcpy(jn[cnt].service_name, service_name); + /* 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", - local_machine, service_name); - ref = jn[cnt].referral_list = (struct referral*) malloc(sizeof(struct referral)); - if (jn[cnt].referral_list == NULL) { - DEBUG(0, ("Malloc failed!\n")); - return False; - } - - safe_strcpy(ref->alternate_path, alt_path, sizeof(pstring)); - ref->proximity = 0; - ref->ttl = REFERRAL_TTL; - cnt++; - } + + 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 (is_msdfs_link(conn, pathreal, &(jn[cnt].referral_list), - &(jn[cnt].referral_count), NULL)) { - pstrcpy(jn[cnt].service_name, service_name); - pstrcpy(jn[cnt].volume_name, dname); - cnt++; + 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; @@ -874,4 +735,3 @@ int enum_msdfs_links(struct junction_map* jn) } return jn_count; } - |