/* Unix SMB/CIFS implementation. Name lookup. Copyright (C) Jeremy Allison 2005 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "utils/net.h" #include "rpc_client/cli_pipe.h" #include "../librpc/gen_ndr/ndr_lsa.h" #include "rpc_client/cli_lsarpc.h" #include "libsmb/libsmb.h" /******************************************************** Connection cachine struct. Goes away when ctx destroyed. ********************************************************/ struct con_struct { bool failed_connect; NTSTATUS err; struct cli_state *cli; struct rpc_pipe_client *lsapipe; struct policy_handle pol; }; static struct con_struct *cs; /******************************************************** Close connection on context destruction. ********************************************************/ static int cs_destructor(struct con_struct *p) { if (cs->cli) { cli_shutdown(cs->cli); } cs = NULL; return 0; } /******************************************************** Create the connection to localhost. ********************************************************/ static struct con_struct *create_cs(struct net_context *c, TALLOC_CTX *ctx, NTSTATUS *perr) { NTSTATUS nt_status; struct sockaddr_storage loopback_ss; *perr = NT_STATUS_OK; if (!interpret_string_addr(&loopback_ss, "127.0.0.1", AI_NUMERICHOST)) { *perr = NT_STATUS_INVALID_PARAMETER; return NULL; } if (cs) { if (cs->failed_connect) { *perr = cs->err; return NULL; } return cs; } cs = talloc(ctx, struct con_struct); if (!cs) { *perr = NT_STATUS_NO_MEMORY; return NULL; } ZERO_STRUCTP(cs); talloc_set_destructor(cs, cs_destructor); /* Connect to localhost with given username/password. */ /* JRA. Pretty sure we can just do this anonymously.... */ #if 0 if (!opt_password && !opt_machine_pass) { char *pass = getpass("Password:"); if (pass) { opt_password = SMB_STRDUP(pass); } } #endif nt_status = cli_full_connection(&cs->cli, lp_netbios_name(), lp_netbios_name(), &loopback_ss, 0, "IPC$", "IPC", #if 0 c->opt_user_name, c->opt_workgroup, c->opt_password, #else "", c->opt_workgroup, "", #endif 0, SMB_SIGNING_DEFAULT); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(2,("create_cs: Connect failed. Error was %s\n", nt_errstr(nt_status))); cs->failed_connect = true; cs->err = nt_status; *perr = nt_status; return NULL; } nt_status = cli_rpc_pipe_open_noauth(cs->cli, &ndr_table_lsarpc.syntax_id, &cs->lsapipe); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(2,("create_cs: open LSA pipe failed. Error was %s\n", nt_errstr(nt_status))); cs->failed_connect = true; cs->err = nt_status; *perr = nt_status; return NULL; } nt_status = rpccli_lsa_open_policy(cs->lsapipe, ctx, true, SEC_FLAG_MAXIMUM_ALLOWED, &cs->pol); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(2,("create_cs: rpccli_lsa_open_policy failed. Error was %s\n", nt_errstr(nt_status))); cs->failed_connect = true; cs->err = nt_status; *perr = nt_status; return NULL; } return cs; } /******************************************************** Do a lookup_sids call to localhost. Check if the local machine is authoritative for this sid. We can't check if this is our SID as that's stored in the root-read-only secrets.tdb. The local smbd will also ask winbindd for us, so we don't have to. ********************************************************/ NTSTATUS net_lookup_name_from_sid(struct net_context *c, TALLOC_CTX *ctx, struct dom_sid *psid, const char **ppdomain, const char **ppname) { NTSTATUS nt_status; struct con_struct *csp = NULL; char **domains; char **names; enum lsa_SidType *types; *ppdomain = NULL; *ppname = NULL; csp = create_cs(c, ctx, &nt_status); if (csp == NULL) { return nt_status; } nt_status = rpccli_lsa_lookup_sids(csp->lsapipe, ctx, &csp->pol, 1, psid, &domains, &names, &types); if (!NT_STATUS_IS_OK(nt_status)) { return nt_status; } *ppdomain = domains[0]; *ppname = names[0]; /* Don't care about type here. */ /* Converted OK */ return NT_STATUS_OK; } /******************************************************** Do a lookup_names call to localhost. ********************************************************/ NTSTATUS net_lookup_sid_from_name(struct net_context *c, TALLOC_CTX *ctx, const char *full_name, struct dom_sid *pret_sid) { NTSTATUS nt_status; struct con_struct *csp = NULL; struct dom_sid *sids = NULL; enum lsa_SidType *types = NULL; csp = create_cs(c, ctx, &nt_status); if (csp == NULL) { return nt_status; } nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx, &csp->pol, 1, &full_name, NULL, 1, &sids, &types); if (!NT_STATUS_IS_OK(nt_status)) { return nt_status; } *pret_sid = sids[0]; /* Converted OK */ return NT_STATUS_OK; }