Removed version number from file header.
[kai/samba.git] / source3 / nsswitch / winbindd_rpc.c
index e4654254cb0a72602c3274e4d43eb301f1bbf6f2..2057a85fa3acd8131ee9986e5131ad54e7543c73 100644 (file)
@@ -1,5 +1,5 @@
 /* 
-   Unix SMB/Netbios implementation.
+   Unix SMB/CIFS implementation.
 
    Winbind rpc backend functions
 
@@ -28,7 +28,7 @@
    application. */
 static NTSTATUS query_user_list(struct winbindd_domain *domain,
                               TALLOC_CTX *mem_ctx,
-                              uint32 *start_ndx, uint32 *num_entries, 
+                              uint32 *num_entries, 
                               WINBIND_USERINFO **info)
 {
        CLI_POLICY_HND *hnd;
@@ -40,6 +40,9 @@ static NTSTATUS query_user_list(struct winbindd_domain *domain,
        SAM_DISPINFO_1 info1;
        int i;
 
+       *num_entries = 0;
+       *info = NULL;
+
        /* Get sam handle */
 
        if (!(hnd = cm_get_sam_handle(domain->name)))
@@ -57,28 +60,43 @@ static NTSTATUS query_user_list(struct winbindd_domain *domain,
 
        ctr.sam.info1 = &info1;
 
-       /* Query display info level 1 */
-       result = cli_samr_query_dispinfo(hnd->cli, mem_ctx,
-                                       &dom_pol, start_ndx, 1,
-                                       num_entries, 0xffff, &ctr);
-
-       /* now map the result into the WINBIND_USERINFO structure */
-       (*info) = (WINBIND_USERINFO *)talloc(mem_ctx, (*num_entries)*sizeof(WINBIND_USERINFO));
-       if (!(*info)) {
-               return NT_STATUS_NO_MEMORY;
-       }
-
-       for (i=0;i<*num_entries;i++) {
-               (*info)[i].acct_name = unistr2_tdup(mem_ctx, &info1.str[i].uni_acct_name);
-               (*info)[i].full_name = unistr2_tdup(mem_ctx, &info1.str[i].uni_full_name);
-               (*info)[i].user_rid = info1.sam[i].rid_user;
-               /* For the moment we set the primary group for every user to be the
-                  Domain Users group.  There are serious problems with determining
-                  the actual primary group for large domains.  This should really
-                  be made into a 'winbind force group' smb.conf parameter or
-                  something like that. */ 
-               (*info)[i].group_rid = DOMAIN_GROUP_RID_USERS;
-       }
+       i = 0;
+       do {
+               uint32 count = 0, start=i;
+               int j;
+               
+
+               /* Query display info level 1 */
+               result = cli_samr_query_dispinfo(hnd->cli, mem_ctx,
+                                                &dom_pol, &start, 1,
+                                                &count, 0xFFFF, &ctr);
+
+               if (!NT_STATUS_IS_OK(result) && 
+                   !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) break;
+
+               (*num_entries) += count;
+
+               /* now map the result into the WINBIND_USERINFO structure */
+               (*info) = talloc_realloc(mem_ctx, *info,
+                                        (*num_entries)*sizeof(WINBIND_USERINFO));
+               if (!(*info)) {
+                       return NT_STATUS_NO_MEMORY;
+               }
+
+               for (j=0;j<count;i++, j++) {
+                       (*info)[i].acct_name = unistr2_tdup(mem_ctx, &info1.str[j].uni_acct_name);
+                       (*info)[i].full_name = unistr2_tdup(mem_ctx, &info1.str[j].uni_full_name);
+                       (*info)[i].user_rid = info1.sam[j].rid_user;
+                       /* For the moment we set the primary group for
+                          every user to be the Domain Users group.
+                          There are serious problems with determining
+                          the actual primary group for large domains.
+                          This should really be made into a 'winbind
+                          force group' smb.conf parameter or
+                          something like that. */
+                       (*info)[i].group_rid = DOMAIN_GROUP_RID_USERS;
+               }
+       } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
 
  done:
 
@@ -91,7 +109,7 @@ static NTSTATUS query_user_list(struct winbindd_domain *domain,
 /* list all domain groups */
 static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
                                TALLOC_CTX *mem_ctx,
-                               uint32 *start_ndx, uint32 *num_entries, 
+                               uint32 *num_entries, 
                                struct acct_info **info)
 {
        uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
@@ -100,6 +118,7 @@ static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
        NTSTATUS status;
 
        *num_entries = 0;
+       *info = NULL;
 
        if (!(hnd = cm_get_sam_handle(domain->name))) {
                return NT_STATUS_UNSUCCESSFUL;
@@ -111,10 +130,35 @@ static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
                return status;
        }
 
-       status = cli_samr_enum_dom_groups(hnd->cli, mem_ctx, &dom_pol,
-                                         start_ndx,
-                                         0x8000, /* buffer size? */
-                                         info, num_entries);
+       do {
+               struct acct_info *info2 = NULL;
+               uint32 count = 0, start = *num_entries;
+               TALLOC_CTX *mem_ctx2;
+
+               mem_ctx2 = talloc_init_named("enum_dom_groups[rpc]");
+
+               status = cli_samr_enum_dom_groups(hnd->cli, mem_ctx2, &dom_pol,
+                                                 &start,
+                                                 0xFFFF, /* buffer size? */
+                                                 &info2, &count);
+
+               if (!NT_STATUS_IS_OK(status) && 
+                   !NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
+                       talloc_destroy(mem_ctx2);
+                       break;
+               }
+
+               (*info) = talloc_realloc(mem_ctx, *info, 
+                                        sizeof(**info) * ((*num_entries) + count));
+               if (! *info) {
+                       talloc_destroy(mem_ctx2);
+                       return NT_STATUS_NO_MEMORY;
+               }
+
+               memcpy(&(*info)[*num_entries], info2, count*sizeof(*info2));
+               (*num_entries) += count;
+               talloc_destroy(mem_ctx2);
+       } while (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES));
 
        cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
 
@@ -133,15 +177,28 @@ static NTSTATUS name_to_sid(struct winbindd_domain *domain,
        DOM_SID *sids = NULL;
        uint32 *types = NULL;
        int num_sids;
+       const char *full_name;
 
-       if (!(mem_ctx = talloc_init()))
+       if (!(mem_ctx = talloc_init_named("name_to_sid[rpc] for [%s]\\[%s]", domain->name, name))) {
+               DEBUG(0, ("talloc_init failed!\n"));
                return NT_STATUS_NO_MEMORY;
+       }
         
-       if (!(hnd = cm_get_lsa_handle(domain->name)))
+       if (!(hnd = cm_get_lsa_handle(domain->name))) {
+               talloc_destroy(mem_ctx);
                return NT_STATUS_UNSUCCESSFUL;
+       }
         
-       status = cli_lsa_lookup_names(hnd->cli, mem_ctx, &hnd->pol, 1, &name, 
-                                     &sids, &types, &num_sids);
+       full_name = talloc_asprintf(mem_ctx, "%s\\%s", domain->name, name);
+       
+       if (!full_name) {
+               DEBUG(0, ("talloc_asprintf failed!\n"));
+               talloc_destroy(mem_ctx);
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       status = cli_lsa_lookup_names(hnd->cli, mem_ctx, &hnd->pol, 1, 
+                                     &full_name, &sids, &types, &num_sids);
         
        /* Return rid and type if lookup successful */        
        if (NT_STATUS_IS_OK(status)) {
@@ -156,13 +213,14 @@ static NTSTATUS name_to_sid(struct winbindd_domain *domain,
 /*
   convert a domain SID to a user or group name
 */
-NTSTATUS winbindd_rpc_sid_to_name(struct winbindd_domain *domain,
-                                 TALLOC_CTX *mem_ctx,
-                                 DOM_SID *sid,
-                                 char **name,
-                                 enum SID_NAME_USE *type)
+static NTSTATUS sid_to_name(struct winbindd_domain *domain,
+                           TALLOC_CTX *mem_ctx,
+                           DOM_SID *sid,
+                           char **name,
+                           enum SID_NAME_USE *type)
 {
        CLI_POLICY_HND *hnd;
+       char **domains;
        char **names;
        uint32 *types;
        int num_names;
@@ -172,24 +230,369 @@ NTSTATUS winbindd_rpc_sid_to_name(struct winbindd_domain *domain,
                return NT_STATUS_UNSUCCESSFUL;
         
        status = cli_lsa_lookup_sids(hnd->cli, mem_ctx, &hnd->pol,
-                                    1, sid, &names, &types, 
+                                    1, sid, &domains, &names, &types, 
                                     &num_names);
 
        if (NT_STATUS_IS_OK(status)) {
                *type = types[0];
                *name = names[0];
-               DEBUG(5,("Mapped sid to %s\n", *name));
-       }
+               DEBUG(5,("Mapped sid to [%s]\\[%s]\n", domains[0], *name));
 
+               /* Parinoia */
+               if (strcasecmp(domain->name, domains[0]) != 0) {
+                       DEBUG(1, ("domain name from domain param and PDC lookup return differ! (%s vs %s)\n", domain->name, domains[0]));
+                       return NT_STATUS_UNSUCCESSFUL;
+               }
+       }
        return status;
 }
 
+/* Lookup user information from a rid or username. */
+static NTSTATUS query_user(struct winbindd_domain *domain, 
+                          TALLOC_CTX *mem_ctx, 
+                          uint32 user_rid, 
+                          WINBIND_USERINFO *user_info)
+{
+       CLI_POLICY_HND *hnd;
+       NTSTATUS result;
+       POLICY_HND dom_pol, user_pol;
+       BOOL got_dom_pol = False, got_user_pol = False;
+       SAM_USERINFO_CTR *ctr;
+
+       /* Get sam handle */
+       if (!(hnd = cm_get_sam_handle(domain->name)))
+               goto done;
+
+       /* Get domain handle */
+
+       result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
+                                     SEC_RIGHTS_MAXIMUM_ALLOWED, 
+                                     &domain->sid, &dom_pol);
+
+       if (!NT_STATUS_IS_OK(result))
+               goto done;
+
+       got_dom_pol = True;
+
+       /* Get user handle */
+       result = cli_samr_open_user(hnd->cli, mem_ctx, &dom_pol,
+                                   SEC_RIGHTS_MAXIMUM_ALLOWED, user_rid, &user_pol);
+
+       if (!NT_STATUS_IS_OK(result))
+               goto done;
+
+       /* Get user info */
+       result = cli_samr_query_userinfo(hnd->cli, mem_ctx, &user_pol, 
+                                        0x15, &ctr);
+
+       cli_samr_close(hnd->cli, mem_ctx, &user_pol);
+
+       user_info->group_rid = ctr->info.id21->group_rid;
+       user_info->acct_name = unistr2_tdup(mem_ctx, 
+                                           &ctr->info.id21->uni_user_name);
+       user_info->full_name = unistr2_tdup(mem_ctx, 
+                                           &ctr->info.id21->uni_full_name);
+
+ done:
+       /* Clean up policy handles */
+       if (got_user_pol)
+               cli_samr_close(hnd->cli, mem_ctx, &user_pol);
+
+       if (got_dom_pol)
+               cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
+
+       return result;
+}                                   
+
+/* Lookup groups a user is a member of.  I wish Unix had a call like this! */
+static NTSTATUS lookup_usergroups(struct winbindd_domain *domain,
+                                 TALLOC_CTX *mem_ctx,
+                                 uint32 user_rid, 
+                                 uint32 *num_groups, uint32 **user_gids)
+{
+       CLI_POLICY_HND *hnd;
+       NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
+       POLICY_HND dom_pol, user_pol;
+       uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
+       BOOL got_dom_pol = False, got_user_pol = False;
+       DOM_GID *user_groups;
+       int i;
+
+       *num_groups = 0;
+
+       /* First try cached universal groups from logon */
+       *user_gids = uni_group_cache_fetch(&domain->sid, user_rid, mem_ctx, num_groups);
+       if((*num_groups > 0) && *user_gids) {
+               return NT_STATUS_OK;
+       } else {
+           *user_gids = NULL;
+           *num_groups = 0;
+       }
+
+       /* Get sam handle */
+       if (!(hnd = cm_get_sam_handle(domain->name)))
+               goto done;
+
+       /* Get domain handle */
+       result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
+                                       des_access, &domain->sid, &dom_pol);
+
+       if (!NT_STATUS_IS_OK(result))
+               goto done;
+
+       got_dom_pol = True;
+
+       /* Get user handle */
+       result = cli_samr_open_user(hnd->cli, mem_ctx, &dom_pol,
+                                       des_access, user_rid, &user_pol);
+
+       if (!NT_STATUS_IS_OK(result))
+               goto done;
+
+       got_user_pol = True;
+
+       /* Query user rids */
+       result = cli_samr_query_usergroups(hnd->cli, mem_ctx, &user_pol, 
+                                          num_groups, &user_groups);
+
+       if (!NT_STATUS_IS_OK(result) || (*num_groups) == 0)
+               goto done;
+
+       (*user_gids) = talloc(mem_ctx, sizeof(uint32) * (*num_groups));
+       for (i=0;i<(*num_groups);i++) {
+               (*user_gids)[i] = user_groups[i].g_rid;
+       }
+       
+ done:
+       /* Clean up policy handles */
+       if (got_user_pol)
+               cli_samr_close(hnd->cli, mem_ctx, &user_pol);
+
+       if (got_dom_pol)
+               cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
+
+       return result;
+}
+
+
+/* Lookup group membership given a rid.   */
+static NTSTATUS lookup_groupmem(struct winbindd_domain *domain,
+                               TALLOC_CTX *mem_ctx,
+                               uint32 group_rid, uint32 *num_names, 
+                               uint32 **rid_mem, char ***names, 
+                               uint32 **name_types)
+{
+        CLI_POLICY_HND *hnd;
+        NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
+        uint32 i, total_names = 0;
+        POLICY_HND dom_pol, group_pol;
+        uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
+        BOOL got_dom_pol = False, got_group_pol = False;
+
+       *num_names = 0;
+
+        /* Get sam handle */
+
+        if (!(hnd = cm_get_sam_handle(domain->name)))
+                goto done;
+
+        /* Get domain handle */
+
+        result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
+                                      des_access, &domain->sid, &dom_pol);
+
+        if (!NT_STATUS_IS_OK(result))
+                goto done;
+
+        got_dom_pol = True;
+
+        /* Get group handle */
+
+        result = cli_samr_open_group(hnd->cli, mem_ctx, &dom_pol,
+                                     des_access, group_rid, &group_pol);
+
+        if (!NT_STATUS_IS_OK(result))
+                goto done;
+
+        got_group_pol = True;
+
+        /* Step #1: Get a list of user rids that are the members of the
+           group. */
+
+        result = cli_samr_query_groupmem(hnd->cli, mem_ctx,
+                                         &group_pol, num_names, rid_mem,
+                                         name_types);
+
+        if (!NT_STATUS_IS_OK(result))
+                goto done;
+
+        /* Step #2: Convert list of rids into list of usernames.  Do this
+           in bunches of ~1000 to avoid crashing NT4.  It looks like there
+           is a buffer overflow or something like that lurking around
+           somewhere. */
+
+#define MAX_LOOKUP_RIDS 900
+
+        *names = talloc(mem_ctx, *num_names * sizeof(char *));
+        *name_types = talloc(mem_ctx, *num_names * sizeof(uint32));
+
+        for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) {
+                int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS);
+                uint32 tmp_num_names = 0;
+                char **tmp_names = NULL;
+                uint32 *tmp_types = NULL;
+
+                /* Lookup a chunk of rids */
+
+                result = cli_samr_lookup_rids(hnd->cli, mem_ctx,
+                                              &dom_pol, 1000, /* flags */
+                                              num_lookup_rids,
+                                              &(*rid_mem)[i],
+                                              &tmp_num_names,
+                                              &tmp_names, &tmp_types);
+
+                if (!NT_STATUS_IS_OK(result))
+                        goto done;
+
+                /* Copy result into array.  The talloc system will take
+                   care of freeing the temporary arrays later on. */
+
+                memcpy(&(*names)[i], tmp_names, sizeof(char *) * 
+                       tmp_num_names);
+
+                memcpy(&(*name_types)[i], tmp_types, sizeof(uint32) *
+                       tmp_num_names);
+
+                total_names += tmp_num_names;
+        }
+
+        *num_names = total_names;
+
+ done:
+        if (got_group_pol)
+                cli_samr_close(hnd->cli, mem_ctx, &group_pol);
+
+        if (got_dom_pol)
+                cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
+
+        return result;
+}
+
+/* find the sequence number for a domain */
+static NTSTATUS sequence_number(struct winbindd_domain *domain, uint32 *seq)
+{
+       TALLOC_CTX *mem_ctx;
+       CLI_POLICY_HND *hnd;
+       SAM_UNK_CTR ctr;
+       uint16 switch_value = 2;
+       NTSTATUS result;
+       uint32 seqnum = DOM_SEQUENCE_NONE;
+       POLICY_HND dom_pol;
+       BOOL got_dom_pol = False;
+       uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
+
+       *seq = DOM_SEQUENCE_NONE;
+
+       if (!(mem_ctx = talloc_init_named("sequence_number[rpc]")))
+               return NT_STATUS_NO_MEMORY;
+
+       /* Get sam handle */
+
+       if (!(hnd = cm_get_sam_handle(domain->name)))
+               goto done;
+
+       /* Get domain handle */
+
+       result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol, 
+                                     des_access, &domain->sid, &dom_pol);
+
+       if (!NT_STATUS_IS_OK(result))
+               goto done;
+
+       got_dom_pol = True;
+
+       /* Query domain info */
+
+       result = cli_samr_query_dom_info(hnd->cli, mem_ctx, &dom_pol,
+                                        switch_value, &ctr);
+
+       if (NT_STATUS_IS_OK(result)) {
+               seqnum = ctr.info.inf2.seq_num;
+               DEBUG(10,("domain_sequence_number: for domain %s is %u\n", domain->name, (unsigned)seqnum ));
+       } else {
+               DEBUG(10,("domain_sequence_number: failed to get sequence number (%u) for domain %s\n",
+                       (unsigned)seqnum, domain->name ));
+       }
+
+  done:
+
+       if (got_dom_pol)
+               cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
+
+       talloc_destroy(mem_ctx);
+
+       *seq = seqnum;
+
+       return result;
+}
+
+/* get a list of trusted domains */
+static NTSTATUS trusted_domains(struct winbindd_domain *domain,
+                               TALLOC_CTX *mem_ctx,
+                               uint32 *num_domains,
+                               char ***names,
+                               DOM_SID **dom_sids)
+{
+       CLI_POLICY_HND *hnd;
+       NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
+       uint32 enum_ctx = 0;
+
+       *num_domains = 0;
+
+       if (!(hnd = cm_get_lsa_handle(lp_workgroup())))
+               goto done;
+
+       result = cli_lsa_enum_trust_dom(hnd->cli, mem_ctx,
+                                       &hnd->pol, &enum_ctx, num_domains, 
+                                       names, dom_sids);
+done:
+       return result;
+}
+
+/* find the domain sid for a domain */
+static NTSTATUS domain_sid(struct winbindd_domain *domain, DOM_SID *sid)
+{
+       NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
+       TALLOC_CTX *mem_ctx;
+       CLI_POLICY_HND *hnd;
+       fstring level5_dom;
+
+       if (!(mem_ctx = talloc_init_named("domain_sid[rpc]")))
+               return NT_STATUS_NO_MEMORY;
+
+       /* Get sam handle */
+       if (!(hnd = cm_get_lsa_handle(domain->name)))
+               goto done;
+
+       status = cli_lsa_query_info_policy(hnd->cli, mem_ctx,
+                                          &hnd->pol, 0x05, level5_dom, sid);
+
+done:
+       talloc_destroy(mem_ctx);
+       return status;
+}
 
 /* the rpc backend methods are exposed via this structure */
 struct winbindd_methods msrpc_methods = {
+       False,
        query_user_list,
        enum_dom_groups,
        name_to_sid,
-       winbindd_rpc_sid_to_name
+       sid_to_name,
+       query_user,
+       lookup_usergroups,
+       lookup_groupmem,
+       sequence_number,
+       trusted_domains,
+       domain_sid
 };
-