source3/utils/net_rpc_shell.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Shell around net rpc subcommands
   4  *  Copyright (C) Volker Lendecke 2006
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #include "includes.h"
  22 #include "utils/net.h"
  23
  24 static NTSTATUS rpc_sh_info(struct net_context *c,
  25                             TALLOC_CTX *mem_ctx, struct rpc_sh_ctx *ctx,
  26                             struct rpc_pipe_client *pipe_hnd,
  27                             int argc, const char **argv)
  28 {
  29         return rpc_info_internals(c, ctx->domain_sid, ctx->domain_name,
  30                                   ctx->cli, pipe_hnd, mem_ctx,
  31                                   argc, argv);
  32 }
  33
  34 static struct rpc_sh_ctx *this_ctx;
  35
  36 static char **completion_fn(const char *text, int start, int end)
  37 {
  38         char **cmds = NULL;
  39         int n_cmds = 0;
  40         struct rpc_sh_cmd *c;
  41
  42         if (start != 0) {
  43                 return NULL;
  44         }
  45
  46         ADD_TO_ARRAY(NULL, char *, SMB_STRDUP(text), &cmds, &n_cmds);
  47
  48         for (c = this_ctx->cmds; c->name != NULL; c++) {
  49                 bool match = (strncmp(text, c->name, strlen(text)) == 0);
  50
  51                 if (match) {
  52                         ADD_TO_ARRAY(NULL, char *, SMB_STRDUP(c->name),
  53                                      &cmds, &n_cmds);
  54                 }
  55         }
  56
  57         if (n_cmds == 2) {
  58                 SAFE_FREE(cmds[0]);
  59                 cmds[0] = cmds[1];
  60                 n_cmds -= 1;
  61         }
  62
  63         ADD_TO_ARRAY(NULL, char *, NULL, &cmds, &n_cmds);
  64         return cmds;
  65 }
  66
  67 static NTSTATUS net_sh_run(struct net_context *c,
  68                            struct rpc_sh_ctx *ctx, struct rpc_sh_cmd *cmd,
  69                            int argc, const char **argv)
  70 {
  71         TALLOC_CTX *mem_ctx;
  72         struct rpc_pipe_client *pipe_hnd;
  73         NTSTATUS status;
  74
  75         mem_ctx = talloc_new(ctx);
  76         if (mem_ctx == NULL) {
  77                 d_fprintf(stderr, "talloc_new failed\n");
  78                 return NT_STATUS_NO_MEMORY;
  79         }
  80
  81         pipe_hnd = cli_rpc_pipe_open_noauth(ctx->cli, cmd->pipe_idx, &status);
  82         if (pipe_hnd == NULL) {
  83                 d_fprintf(stderr, "Could not open pipe: %s\n",
  84                           nt_errstr(status));
  85                 return status;
  86         }
  87
  88         status = cmd->fn(c, mem_ctx, ctx, pipe_hnd, argc, argv);
  89
  90         TALLOC_FREE(pipe_hnd);
  91
  92         talloc_destroy(mem_ctx);
  93
  94         return status;
  95 }
  96
  97 static bool net_sh_process(struct net_context *c,
  98                            struct rpc_sh_ctx *ctx,
  99                            int argc, const char **argv)
 100 {
 101         struct rpc_sh_cmd *cmd;
 102         struct rpc_sh_ctx *new_ctx;
 103         NTSTATUS status;
 104
 105         if (argc == 0) {
 106                 return true;
 107         }
 108
 109         if (ctx == this_ctx) {
 110
 111                 /* We've been called from the cmd line */
 112                 if (strequal(argv[0], "..") &&
 113                     (this_ctx->parent != NULL)) {
 114                         new_ctx = this_ctx->parent;
 115                         TALLOC_FREE(this_ctx);
 116                         this_ctx = new_ctx;
 117                         return true;
 118                 }
 119         }
 120
 121         if (strequal(argv[0], "exit") || strequal(argv[0], "quit")) {
 122                 return false;
 123         }
 124
 125         if (strequal(argv[0], "help") || strequal(argv[0], "?")) {
 126                 for (cmd = ctx->cmds; cmd->name != NULL; cmd++) {
 127                         if (ctx != this_ctx) {
 128                                 d_printf("%s ", ctx->whoami);
 129                         }
 130                         d_printf("%-15s %s\n", cmd->name, cmd->help);
 131                 }
 132                 return true;
 133         }
 134
 135         for (cmd = ctx->cmds; cmd->name != NULL; cmd++) {
 136                 if (strequal(cmd->name, argv[0])) {
 137                         break;
 138                 }
 139         }
 140
 141         if (cmd->name == NULL) {
 142                 /* None found */
 143                 d_fprintf(stderr, "%s: unknown cmd\n", argv[0]);
 144                 return true;
 145         }
 146
 147         new_ctx = TALLOC_P(ctx, struct rpc_sh_ctx);
 148         if (new_ctx == NULL) {
 149                 d_fprintf(stderr, "talloc failed\n");
 150                 return false;
 151         }
 152         new_ctx->cli = ctx->cli;
 153         new_ctx->whoami = talloc_asprintf(new_ctx, "%s %s",
 154                                           ctx->whoami, cmd->name);
 155         new_ctx->thiscmd = talloc_strdup(new_ctx, cmd->name);
 156
 157         if (cmd->sub != NULL) {
 158                 new_ctx->cmds = cmd->sub(c, new_ctx, ctx);
 159         } else {
 160                 new_ctx->cmds = NULL;
 161         }
 162
 163         new_ctx->parent = ctx;
 164         new_ctx->domain_name = ctx->domain_name;
 165         new_ctx->domain_sid = ctx->domain_sid;
 166
 167         argc -= 1;
 168         argv += 1;
 169
 170         if (cmd->sub != NULL) {
 171                 if (argc == 0) {
 172                         this_ctx = new_ctx;
 173                         return true;
 174                 }
 175                 return net_sh_process(c, new_ctx, argc, argv);
 176         }
 177
 178         status = net_sh_run(c, new_ctx, cmd, argc, argv);
 179
 180         if (!NT_STATUS_IS_OK(status)) {
 181                 d_fprintf(stderr, "%s failed: %s\n", new_ctx->whoami,
 182                           nt_errstr(status));
 183         }
 184
 185         return true;
 186 }
 187
 188 static struct rpc_sh_cmd sh_cmds[6] = {
 189
 190         { "info", NULL, PI_SAMR, rpc_sh_info,
 191           "Print information about the domain connected to" },
 192
 193         { "rights", net_rpc_rights_cmds, 0, NULL,
 194           "List/Grant/Revoke user rights" },
 195
 196         { "share", net_rpc_share_cmds, 0, NULL,
 197           "List/Add/Remove etc shares" },
 198
 199         { "user", net_rpc_user_cmds, 0, NULL,
 200           "List/Add/Remove user info" },
 201
 202         { "account", net_rpc_acct_cmds, 0, NULL,
 203           "Show/Change account policy settings" },
 204
 205         { NULL, NULL, 0, NULL, NULL }
 206 };
 207
 208 int net_rpc_shell(struct net_context *c, int argc, const char **argv)
 209 {
 210         NTSTATUS status;
 211         struct rpc_sh_ctx *ctx;
 212
 213         if (argc != 0 || c->display_usage) {
 214                 d_printf("Usage:\n"
 215                          "net rpc shell\n");
 216                 return -1;
 217         }
 218
 219         ctx = TALLOC_P(NULL, struct rpc_sh_ctx);
 220         if (ctx == NULL) {
 221                 d_fprintf(stderr, "talloc failed\n");
 222                 return -1;
 223         }
 224
 225         status = net_make_ipc_connection(c, 0, &(ctx->cli));
 226         if (!NT_STATUS_IS_OK(status)) {
 227                 d_fprintf(stderr, "Could not open connection: %s\n",
 228                           nt_errstr(status));
 229                 return -1;
 230         }
 231
 232         ctx->cmds = sh_cmds;
 233         ctx->whoami = "net rpc";
 234         ctx->parent = NULL;
 235
 236         status = net_get_remote_domain_sid(ctx->cli, ctx, &ctx->domain_sid,
 237                                            &ctx->domain_name);
 238         if (!NT_STATUS_IS_OK(status)) {
 239                 return -1;
 240         }
 241
 242         d_printf("Talking to domain %s (%s)\n", ctx->domain_name,
 243                  sid_string_tos(ctx->domain_sid));
 244
 245         this_ctx = ctx;
 246
 247         while(1) {
 248                 char *prompt = NULL;
 249                 char *line = NULL;
 250                 int ret;
 251
 252                 if (asprintf(&prompt, "%s> ", this_ctx->whoami) < 0) {
 253                         break;
 254                 }
 255
 256                 line = smb_readline(prompt, NULL, completion_fn);
 257                 SAFE_FREE(prompt);
 258
 259                 if (line == NULL) {
 260                         break;
 261                 }
 262
 263                 ret = poptParseArgvString(line, &argc, &argv);
 264                 if (ret == POPT_ERROR_NOARG) {
 265                         SAFE_FREE(line);
 266                         continue;
 267                 }
 268                 if (ret != 0) {
 269                         d_fprintf(stderr, "cmdline invalid: %s\n",
 270                                   poptStrerror(ret));
 271                         SAFE_FREE(line);
 272                         return false;
 273                 }
 274
 275                 if ((line[0] != '\n') &&
 276                     (!net_sh_process(c, this_ctx, argc, argv))) {
 277                         SAFE_FREE(line);
 278                         break;
 279                 }
 280                 SAFE_FREE(line);
 281         }
 282
 283         cli_shutdown(ctx->cli);
 284
 285         TALLOC_FREE(ctx);
 286
 287         return 0;
 288 }