[206] | 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 |
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| 4 | Name lookup.
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| 5 |
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| 6 | Copyright (C) Jeremy Allison 2005
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| 7 |
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| 8 | This program is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 3 of the License, or
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| 11 | (at your option) any later version.
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| 12 |
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| 13 | This program is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 | #include "includes.h"
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| 23 | #include "utils/net.h"
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| 24 |
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| 25 | /********************************************************
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| 26 | Connection cachine struct. Goes away when ctx destroyed.
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| 27 | ********************************************************/
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| 28 |
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| 29 | struct con_struct {
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| 30 | bool failed_connect;
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| 31 | NTSTATUS err;
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| 32 | struct cli_state *cli;
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| 33 | struct rpc_pipe_client *lsapipe;
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| 34 | POLICY_HND pol;
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| 35 | };
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| 36 |
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| 37 | static struct con_struct *cs;
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| 38 |
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| 39 | /********************************************************
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| 40 | Close connection on context destruction.
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| 41 | ********************************************************/
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| 42 |
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| 43 | static int cs_destructor(struct con_struct *p)
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| 44 | {
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| 45 | if (cs->cli) {
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| 46 | cli_shutdown(cs->cli);
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| 47 | }
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| 48 | cs = NULL;
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| 49 | return 0;
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| 50 | }
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| 51 |
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| 52 | /********************************************************
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| 53 | Create the connection to localhost.
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| 54 | ********************************************************/
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| 55 |
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| 56 | static struct con_struct *create_cs(struct net_context *c,
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| 57 | TALLOC_CTX *ctx, NTSTATUS *perr)
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| 58 | {
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| 59 | NTSTATUS nt_status;
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| 60 | struct sockaddr_storage loopback_ss;
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| 61 |
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| 62 | *perr = NT_STATUS_OK;
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| 63 |
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| 64 | if (!interpret_string_addr(&loopback_ss, "127.0.0.1", AI_NUMERICHOST)) {
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| 65 | *perr = NT_STATUS_INVALID_PARAMETER;
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| 66 | return NULL;
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| 67 | }
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| 68 |
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| 69 | if (cs) {
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| 70 | if (cs->failed_connect) {
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| 71 | *perr = cs->err;
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| 72 | return NULL;
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| 73 | }
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| 74 | return cs;
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| 75 | }
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| 76 |
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| 77 | cs = TALLOC_P(ctx, struct con_struct);
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| 78 | if (!cs) {
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| 79 | *perr = NT_STATUS_NO_MEMORY;
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| 80 | return NULL;
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| 81 | }
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| 82 |
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| 83 | ZERO_STRUCTP(cs);
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| 84 | talloc_set_destructor(cs, cs_destructor);
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| 85 |
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| 86 | /* Connect to localhost with given username/password. */
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| 87 | /* JRA. Pretty sure we can just do this anonymously.... */
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| 88 | #if 0
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| 89 | if (!opt_password && !opt_machine_pass) {
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| 90 | char *pass = getpass("Password:");
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| 91 | if (pass) {
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| 92 | opt_password = SMB_STRDUP(pass);
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| 93 | }
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| 94 | }
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| 95 | #endif
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| 96 |
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| 97 | nt_status = cli_full_connection(&cs->cli, global_myname(), global_myname(),
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| 98 | &loopback_ss, 0,
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| 99 | "IPC$", "IPC",
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| 100 | #if 0
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| 101 | c->opt_user_name,
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| 102 | c->opt_workgroup,
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| 103 | c->opt_password,
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| 104 | #else
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| 105 | "",
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| 106 | c->opt_workgroup,
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| 107 | "",
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| 108 | #endif
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| 109 | 0,
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| 110 | Undefined,
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| 111 | NULL);
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| 112 |
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| 113 | if (!NT_STATUS_IS_OK(nt_status)) {
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| 114 | DEBUG(2,("create_cs: Connect failed. Error was %s\n", nt_errstr(nt_status)));
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| 115 | cs->failed_connect = true;
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| 116 | cs->err = nt_status;
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| 117 | *perr = nt_status;
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| 118 | return NULL;
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| 119 | }
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| 120 |
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| 121 | nt_status = cli_rpc_pipe_open_noauth(cs->cli,
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| 122 | &ndr_table_lsarpc.syntax_id,
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| 123 | &cs->lsapipe);
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| 124 |
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| 125 | if (!NT_STATUS_IS_OK(nt_status)) {
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| 126 | DEBUG(2,("create_cs: open LSA pipe failed. Error was %s\n", nt_errstr(nt_status)));
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| 127 | cs->failed_connect = true;
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| 128 | cs->err = nt_status;
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| 129 | *perr = nt_status;
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| 130 | return NULL;
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| 131 | }
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| 132 |
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| 133 | nt_status = rpccli_lsa_open_policy(cs->lsapipe, ctx, true,
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| 134 | SEC_RIGHTS_MAXIMUM_ALLOWED,
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| 135 | &cs->pol);
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| 136 |
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| 137 | if (!NT_STATUS_IS_OK(nt_status)) {
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| 138 | DEBUG(2,("create_cs: rpccli_lsa_open_policy failed. Error was %s\n", nt_errstr(nt_status)));
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| 139 | cs->failed_connect = true;
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| 140 | cs->err = nt_status;
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| 141 | *perr = nt_status;
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| 142 | return NULL;
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| 143 | }
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| 144 |
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| 145 | return cs;
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| 146 | }
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| 147 |
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| 148 | /********************************************************
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| 149 | Do a lookup_sids call to localhost.
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| 150 | Check if the local machine is authoritative for this sid. We can't
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| 151 | check if this is our SID as that's stored in the root-read-only
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| 152 | secrets.tdb.
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| 153 | The local smbd will also ask winbindd for us, so we don't have to.
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| 154 | ********************************************************/
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| 155 |
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| 156 | NTSTATUS net_lookup_name_from_sid(struct net_context *c,
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| 157 | TALLOC_CTX *ctx,
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| 158 | DOM_SID *psid,
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| 159 | const char **ppdomain,
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| 160 | const char **ppname)
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| 161 | {
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| 162 | NTSTATUS nt_status;
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| 163 | struct con_struct *csp = NULL;
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| 164 | char **domains;
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| 165 | char **names;
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| 166 | enum lsa_SidType *types;
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| 167 |
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| 168 | *ppdomain = NULL;
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| 169 | *ppname = NULL;
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| 170 |
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| 171 | csp = create_cs(c, ctx, &nt_status);
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| 172 | if (csp == NULL) {
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| 173 | return nt_status;
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| 174 | }
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| 175 |
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| 176 | nt_status = rpccli_lsa_lookup_sids(csp->lsapipe, ctx,
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| 177 | &csp->pol,
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| 178 | 1, psid,
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| 179 | &domains,
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| 180 | &names,
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| 181 | &types);
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| 182 |
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| 183 | if (!NT_STATUS_IS_OK(nt_status)) {
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| 184 | return nt_status;
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| 185 | }
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| 186 |
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| 187 | *ppdomain = domains[0];
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| 188 | *ppname = names[0];
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| 189 | /* Don't care about type here. */
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| 190 |
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| 191 | /* Converted OK */
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| 192 | return NT_STATUS_OK;
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| 193 | }
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| 194 |
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| 195 | /********************************************************
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| 196 | Do a lookup_names call to localhost.
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| 197 | ********************************************************/
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| 198 |
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| 199 | NTSTATUS net_lookup_sid_from_name(struct net_context *c, TALLOC_CTX *ctx,
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| 200 | const char *full_name, DOM_SID *pret_sid)
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| 201 | {
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| 202 | NTSTATUS nt_status;
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| 203 | struct con_struct *csp = NULL;
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| 204 | DOM_SID *sids = NULL;
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| 205 | enum lsa_SidType *types = NULL;
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| 206 |
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| 207 | csp = create_cs(c, ctx, &nt_status);
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| 208 | if (csp == NULL) {
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| 209 | return nt_status;
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| 210 | }
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| 211 |
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| 212 | nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx,
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| 213 | &csp->pol,
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| 214 | 1,
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| 215 | &full_name,
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| 216 | NULL, 1,
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| 217 | &sids, &types);
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| 218 |
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| 219 | if (!NT_STATUS_IS_OK(nt_status)) {
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| 220 | return nt_status;
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| 221 | }
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| 222 |
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| 223 | *pret_sid = sids[0];
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| 224 |
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| 225 | /* Converted OK */
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| 226 | return NT_STATUS_OK;
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| 227 | }
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