diff options
Diffstat (limited to 'source4/rpc_server/srv_dfs_nt.c')
| -rw-r--r-- | source4/rpc_server/srv_dfs_nt.c | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/source4/rpc_server/srv_dfs_nt.c b/source4/rpc_server/srv_dfs_nt.c new file mode 100644 index 0000000000..bb9ed87a48 --- /dev/null +++ b/source4/rpc_server/srv_dfs_nt.c @@ -0,0 +1,371 @@ +/* + * 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_RPC_SRV + +#define MAX_MSDFS_JUNCTIONS 256 + +/* 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); + + if(get_referred_path(dfspath, &jn, NULL, NULL)) + { + exists = True; + jn.referral_count += 1; + old_referral_list = jn.referral_list; + } + else + jn.referral_count = 1; + + jn.referral_list = (struct referral*) talloc(p->mem_ctx, jn.referral_count + * sizeof(struct referral)); + + 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); + SAFE_FREE(old_referral_list); + } + + 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)) + return WERR_DFS_CANT_CREATE_JUNCT; + + 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(altpath); + } + + DEBUG(5,("init_reply_dfs_remove: Request to remove %s -> %s\\%s.\n", + dfspath, servername, sharename)); + + if(!get_referred_path(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)) + return WERR_DFS_NO_SUCH_VOL; + } + 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_string(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)) + return WERR_DFS_NO_SUCH_VOL; + } + else + { + if(!create_msdfs_link(&jn, True)) + return WERR_DFS_CANT_CREATE_JUNCT; + } + } + + 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", lp_netbios_name(), + 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,strlen(str)+1); + } + 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", lp_netbios_name(), + j[i].service_name, j[i].volume_name); + init_unistr2(&dfs2[i].entrypath, str, strlen(str)+1); + 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", + lp_netbios_name(), j[i].service_name); + else + slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", lp_netbios_name(), + j[i].service_name, j[i].volume_name); + + init_unistr2(&dfs3[i].entrypath, str, strlen(str)+1); + dfs3[i].ptr_comment = 1; + init_unistr2(&dfs3[i].comment, "", 1); + 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 = (DFS_STORAGE_INFO*) talloc(ctx, j[i].referral_count * + sizeof(DFS_STORAGE_INFO)); + 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_string(path,"\\",""); + 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, strlen(path)+1); + init_unistr2(&stor->sharename, p+1, strlen(p+1)+1); + 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 = (DFS_INFO_1*) talloc(ctx, num_jn * sizeof(DFS_INFO_1)); + 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 = (DFS_INFO_2*) talloc(ctx, num_jn * sizeof(DFS_INFO_2)); + 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 = (DFS_INFO_3*) talloc(ctx, num_jn * sizeof(DFS_INFO_3)); + 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(jn); + + 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 = (DFS_INFO_CTR*)talloc(p->mem_ctx, sizeof(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; + 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; + + if(!get_referred_path(path, &jn, NULL, NULL)) + return WERR_DFS_NO_SUCH_VOL; + + 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; +} |