--- /dev/null
+/*
+ * Unix SMB/CIFS implementation.
+ * RPC Pipe client / server routines for Dfs
+ * Copyright (C) Andrew Tridgell 1992-1997,
+ * Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
+ * Copyright (C) Shirish Kalele 2000.
+ * Copyright (C) Jeremy Allison 2001.
+ *
+ * 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.
+ */
+
+/* This is the implementation of the dfs pipe. */
+
+#include "includes.h"
+#include "nterr.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_MSDFS
+
+/* This function does not return a WERROR or NTSTATUS code but rather 1 if
+ dfs exists, or 0 otherwise. */
+
+uint32 _dfs_exist(pipes_struct *p, DFS_Q_DFS_EXIST *q_u, DFS_R_DFS_EXIST *r_u)
+{
+ if(lp_host_msdfs())
+ return 1;
+ else
+ return 0;
+}
+
+WERROR _dfs_add(pipes_struct *p, DFS_Q_DFS_ADD* q_u, DFS_R_DFS_ADD *r_u)
+{
+ struct current_user user;
+ struct junction_map jn;
+ struct referral* old_referral_list = NULL;
+ BOOL exists = False;
+
+ pstring dfspath, servername, sharename;
+ pstring altpath;
+
+ get_current_user(&user,p);
+
+ if (user.uid != 0) {
+ DEBUG(10,("_dfs_add: uid != 0. Access denied.\n"));
+ return WERR_ACCESS_DENIED;
+ }
+
+ unistr2_to_ascii(dfspath, &q_u->DfsEntryPath, sizeof(dfspath)-1);
+ unistr2_to_ascii(servername, &q_u->ServerName, sizeof(servername)-1);
+ unistr2_to_ascii(sharename, &q_u->ShareName, sizeof(sharename)-1);
+
+ DEBUG(5,("init_reply_dfs_add: Request to add %s -> %s\\%s.\n",
+ dfspath, servername, sharename));
+
+ pstrcpy(altpath, servername);
+ pstrcat(altpath, "\\");
+ pstrcat(altpath, sharename);
+
+ /* The following call can change the cwd. */
+ if(get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
+ exists = True;
+ jn.referral_count += 1;
+ old_referral_list = jn.referral_list;
+ } else {
+ jn.referral_count = 1;
+ }
+
+ vfs_ChDir(p->conn,p->conn->connectpath);
+
+ jn.referral_list = TALLOC_ARRAY(p->mem_ctx, struct referral, jn.referral_count);
+ if(jn.referral_list == NULL) {
+ DEBUG(0,("init_reply_dfs_add: talloc failed for referral list!\n"));
+ return WERR_DFS_INTERNAL_ERROR;
+ }
+
+ if(old_referral_list) {
+ memcpy(jn.referral_list, old_referral_list, sizeof(struct referral)*jn.referral_count-1);
+ }
+
+ jn.referral_list[jn.referral_count-1].proximity = 0;
+ jn.referral_list[jn.referral_count-1].ttl = REFERRAL_TTL;
+
+ pstrcpy(jn.referral_list[jn.referral_count-1].alternate_path, altpath);
+
+ if(!create_msdfs_link(&jn, exists)) {
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ return WERR_DFS_CANT_CREATE_JUNCT;
+ }
+ vfs_ChDir(p->conn,p->conn->connectpath);
+
+ return WERR_OK;
+}
+
+WERROR _dfs_remove(pipes_struct *p, DFS_Q_DFS_REMOVE *q_u,
+ DFS_R_DFS_REMOVE *r_u)
+{
+ struct current_user user;
+ struct junction_map jn;
+ BOOL found = False;
+
+ pstring dfspath, servername, sharename;
+ pstring altpath;
+
+ get_current_user(&user,p);
+
+ if (user.uid != 0) {
+ DEBUG(10,("_dfs_remove: uid != 0. Access denied.\n"));
+ return WERR_ACCESS_DENIED;
+ }
+
+ unistr2_to_ascii(dfspath, &q_u->DfsEntryPath, sizeof(dfspath)-1);
+ if(q_u->ptr_ServerName) {
+ unistr2_to_ascii(servername, &q_u->ServerName, sizeof(servername)-1);
+ }
+
+ if(q_u->ptr_ShareName) {
+ unistr2_to_ascii(sharename, &q_u->ShareName, sizeof(sharename)-1);
+ }
+
+ if(q_u->ptr_ServerName && q_u->ptr_ShareName) {
+ pstrcpy(altpath, servername);
+ pstrcat(altpath, "\\");
+ pstrcat(altpath, sharename);
+ strlower_m(altpath);
+ }
+
+ DEBUG(5,("init_reply_dfs_remove: Request to remove %s -> %s\\%s.\n",
+ dfspath, servername, sharename));
+
+ if(!get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
+ return WERR_DFS_NO_SUCH_VOL;
+ }
+
+ /* if no server-share pair given, remove the msdfs link completely */
+ if(!q_u->ptr_ServerName && !q_u->ptr_ShareName) {
+ if(!remove_msdfs_link(&jn)) {
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ return WERR_DFS_NO_SUCH_VOL;
+ }
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ } else {
+ int i=0;
+ /* compare each referral in the list with the one to remove */
+ DEBUG(10,("altpath: .%s. refcnt: %d\n", altpath, jn.referral_count));
+ for(i=0;i<jn.referral_count;i++) {
+ pstring refpath;
+ pstrcpy(refpath,jn.referral_list[i].alternate_path);
+ trim_char(refpath, '\\', '\\');
+ DEBUG(10,("_dfs_remove: refpath: .%s.\n", refpath));
+ if(strequal(refpath, altpath)) {
+ *(jn.referral_list[i].alternate_path)='\0';
+ DEBUG(10,("_dfs_remove: Removal request matches referral %s\n",
+ refpath));
+ found = True;
+ }
+ }
+
+ if(!found) {
+ return WERR_DFS_NO_SUCH_SHARE;
+ }
+
+ /* Only one referral, remove it */
+ if(jn.referral_count == 1) {
+ if(!remove_msdfs_link(&jn)) {
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ return WERR_DFS_NO_SUCH_VOL;
+ }
+ } else {
+ if(!create_msdfs_link(&jn, True)) {
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ return WERR_DFS_CANT_CREATE_JUNCT;
+ }
+ }
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ }
+
+ return WERR_OK;
+}
+
+static BOOL init_reply_dfs_info_1(struct junction_map* j, DFS_INFO_1* dfs1, int num_j)
+{
+ int i=0;
+ for(i=0;i<num_j;i++) {
+ pstring str;
+ dfs1[i].ptr_entrypath = 1;
+ slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
+ j[i].service_name, j[i].volume_name);
+ DEBUG(5,("init_reply_dfs_info_1: %d) initing entrypath: %s\n",i,str));
+ init_unistr2(&dfs1[i].entrypath,str,UNI_STR_TERMINATE);
+ }
+ return True;
+}
+
+static BOOL init_reply_dfs_info_2(struct junction_map* j, DFS_INFO_2* dfs2, int num_j)
+{
+ int i=0;
+ for(i=0;i<num_j;i++) {
+ pstring str;
+ dfs2[i].ptr_entrypath = 1;
+ slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
+ j[i].service_name, j[i].volume_name);
+ init_unistr2(&dfs2[i].entrypath, str, UNI_STR_TERMINATE);
+ dfs2[i].ptr_comment = 0;
+ dfs2[i].state = 1; /* set up state of dfs junction as OK */
+ dfs2[i].num_storages = j[i].referral_count;
+ }
+ return True;
+}
+
+static BOOL init_reply_dfs_info_3(TALLOC_CTX *ctx, struct junction_map* j, DFS_INFO_3* dfs3, int num_j)
+{
+ int i=0,ii=0;
+ for(i=0;i<num_j;i++) {
+ pstring str;
+ dfs3[i].ptr_entrypath = 1;
+ if (j[i].volume_name[0] == '\0')
+ slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s",
+ global_myname(), j[i].service_name);
+ else
+ slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
+ j[i].service_name, j[i].volume_name);
+
+ init_unistr2(&dfs3[i].entrypath, str, UNI_STR_TERMINATE);
+ dfs3[i].ptr_comment = 1;
+ init_unistr2(&dfs3[i].comment, "", UNI_STR_TERMINATE);
+ dfs3[i].state = 1;
+ dfs3[i].num_storages = dfs3[i].num_storage_infos = j[i].referral_count;
+ dfs3[i].ptr_storages = 1;
+
+ /* also enumerate the storages */
+ dfs3[i].storages = TALLOC_ARRAY(ctx, DFS_STORAGE_INFO, j[i].referral_count);
+ if (!dfs3[i].storages)
+ return False;
+
+ memset(dfs3[i].storages, '\0', j[i].referral_count * sizeof(DFS_STORAGE_INFO));
+
+ for(ii=0;ii<j[i].referral_count;ii++) {
+ char* p;
+ pstring path;
+ DFS_STORAGE_INFO* stor = &(dfs3[i].storages[ii]);
+ struct referral* ref = &(j[i].referral_list[ii]);
+
+ pstrcpy(path, ref->alternate_path);
+ trim_char(path,'\\','\0');
+ p = strrchr_m(path,'\\');
+ if(p==NULL) {
+ DEBUG(4,("init_reply_dfs_info_3: invalid path: no \\ found in %s\n",path));
+ continue;
+ }
+ *p = '\0';
+ DEBUG(5,("storage %d: %s.%s\n",ii,path,p+1));
+ stor->state = 2; /* set all storages as ONLINE */
+ init_unistr2(&stor->servername, path, UNI_STR_TERMINATE);
+ init_unistr2(&stor->sharename, p+1, UNI_STR_TERMINATE);
+ stor->ptr_servername = stor->ptr_sharename = 1;
+ }
+ }
+ return True;
+}
+
+static WERROR init_reply_dfs_ctr(TALLOC_CTX *ctx, uint32 level,
+ DFS_INFO_CTR* ctr, struct junction_map* jn,
+ int num_jn)
+{
+ /* do the levels */
+ switch(level) {
+ case 1:
+ {
+ DFS_INFO_1* dfs1;
+ dfs1 = TALLOC_ARRAY(ctx, DFS_INFO_1, num_jn);
+ if (!dfs1)
+ return WERR_NOMEM;
+ init_reply_dfs_info_1(jn, dfs1, num_jn);
+ ctr->dfs.info1 = dfs1;
+ break;
+ }
+ case 2:
+ {
+ DFS_INFO_2* dfs2;
+ dfs2 = TALLOC_ARRAY(ctx, DFS_INFO_2, num_jn);
+ if (!dfs2)
+ return WERR_NOMEM;
+ init_reply_dfs_info_2(jn, dfs2, num_jn);
+ ctr->dfs.info2 = dfs2;
+ break;
+ }
+ case 3:
+ {
+ DFS_INFO_3* dfs3;
+ dfs3 = TALLOC_ARRAY(ctx, DFS_INFO_3, num_jn);
+ if (!dfs3)
+ return WERR_NOMEM;
+ init_reply_dfs_info_3(ctx, jn, dfs3, num_jn);
+ ctr->dfs.info3 = dfs3;
+ break;
+ }
+ default:
+ return WERR_INVALID_PARAM;
+ }
+ return WERR_OK;
+}
+
+WERROR _dfs_enum(pipes_struct *p, DFS_Q_DFS_ENUM *q_u, DFS_R_DFS_ENUM *r_u)
+{
+ uint32 level = q_u->level;
+ struct junction_map jn[MAX_MSDFS_JUNCTIONS];
+ int num_jn = 0;
+
+ num_jn = enum_msdfs_links(p->mem_ctx, jn, ARRAY_SIZE(jn));
+ vfs_ChDir(p->conn,p->conn->connectpath);
+
+ DEBUG(5,("make_reply_dfs_enum: %d junctions found in Dfs, doing level %d\n", num_jn, level));
+
+ r_u->ptr_buffer = level;
+ r_u->level = r_u->level2 = level;
+ r_u->ptr_num_entries = r_u->ptr_num_entries2 = 1;
+ r_u->num_entries = r_u->num_entries2 = num_jn;
+ r_u->reshnd.ptr_hnd = 1;
+ r_u->reshnd.handle = num_jn;
+
+ r_u->ctr = TALLOC_P(p->mem_ctx, DFS_INFO_CTR);
+ if (!r_u->ctr)
+ return WERR_NOMEM;
+ ZERO_STRUCTP(r_u->ctr);
+ r_u->ctr->switch_value = level;
+ r_u->ctr->num_entries = num_jn;
+ r_u->ctr->ptr_dfs_ctr = 1;
+
+ r_u->status = init_reply_dfs_ctr(p->mem_ctx, level, r_u->ctr, jn, num_jn);
+
+ return r_u->status;
+}
+
+WERROR _dfs_get_info(pipes_struct *p, DFS_Q_DFS_GET_INFO *q_u,
+ DFS_R_DFS_GET_INFO *r_u)
+{
+ UNISTR2* uni_path = &q_u->uni_path;
+ uint32 level = q_u->level;
+ int consumedcnt = sizeof(pstring);
+ pstring path;
+ struct junction_map jn;
+
+ unistr2_to_ascii(path, uni_path, sizeof(path)-1);
+ if(!create_junction(path, &jn))
+ return WERR_DFS_NO_SUCH_SERVER;
+
+ /* The following call can change the cwd. */
+ if(!get_referred_path(p->mem_ctx, path, &jn, &consumedcnt, NULL) || consumedcnt < strlen(path)) {
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ return WERR_DFS_NO_SUCH_VOL;
+ }
+
+ vfs_ChDir(p->conn,p->conn->connectpath);
+ r_u->level = level;
+ r_u->ptr_ctr = 1;
+ r_u->status = init_reply_dfs_ctr(p->mem_ctx, level, &r_u->ctr, &jn, 1);
+
+ return r_u->status;
+}
projects / samba / blobdiff