/* 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 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. */ #include "includes.h" #include "utils/net.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; POLICY_HND pol; }; static struct con_struct *cs; /******************************************************** Close connection on context destruction. ********************************************************/ static int cs_destructor(void *p) { if (cs->cli) { cli_shutdown(cs->cli); } cs = NULL; return 0; } /******************************************************** Create the connection to localhost. ********************************************************/ static struct con_struct *create_cs(TALLOC_CTX *ctx, NTSTATUS *perr) { NTSTATUS nt_status; struct in_addr loopback_ip = *interpret_addr2("127.0.0.1");; *perr = NT_STATUS_OK; if (cs) { if (cs->failed_connect) { *perr = cs->err; return NULL; } return cs; } cs = TALLOC_P(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, global_myname(), global_myname(), &loopback_ip, 0, "IPC$", "IPC", #if 0 opt_user_name, opt_workgroup, opt_password, #else "", opt_workgroup, "", #endif 0, Undefined, NULL); 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; } cs->lsapipe = cli_rpc_pipe_open_noauth(cs->cli, PI_LSARPC, &nt_status); if (cs->lsapipe == NULL) { 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_RIGHTS_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(TALLOC_CTX *ctx, DOM_SID *psid, const char **ppdomain, const char **ppname) { NTSTATUS nt_status; struct con_struct *csp = NULL; char **domains; char **names; enum SID_NAME_USE *types; *ppdomain = NULL; *ppname = NULL; csp = create_cs(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(TALLOC_CTX *ctx, const char *full_name, DOM_SID *pret_sid) { NTSTATUS nt_status; struct con_struct *csp = NULL; DOM_SID *sids = NULL; enum SID_NAME_USE *types = NULL; csp = create_cs(ctx, &nt_status); if (csp == NULL) { return nt_status; } nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx, &csp->pol, 1, &full_name, NULL, &sids, &types); if (!NT_STATUS_IS_OK(nt_status)) { return nt_status; } *pret_sid = sids[0]; /* Converted OK */ return NT_STATUS_OK; }