source/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         status = cli_rpc_pipe_open_noauth(ctx->cli,
  82                                           cli_get_iface(cmd->pipe_idx),
  83                                           &pipe_hnd);
  84         if (!NT_STATUS_IS_OK(status)) {
  85                 d_fprintf(stderr, "Could not open pipe: %s\n",
  86                           nt_errstr(status));
  87                 return status;
  88         }
  89
  90         status = cmd->fn(c, mem_ctx, ctx, pipe_hnd, argc, argv);
  91
  92         TALLOC_FREE(pipe_hnd);
  93
  94         talloc_destroy(mem_ctx);
  95
  96         return status;
  97 }
  98
  99 static bool net_sh_process(struct net_context *c,
 100                            struct rpc_sh_ctx *ctx,
 101                            int argc, const char **argv)
 102 {
 103         struct rpc_sh_cmd *cmd;
 104         struct rpc_sh_ctx *new_ctx;
 105         NTSTATUS status;
 106
 107         if (argc == 0) {
 108                 return true;
 109         }
 110
 111         if (ctx == this_ctx) {
 112
 113                 /* We've been called from the cmd line */
 114                 if (strequal(argv[0], "..") &&
 115                     (this_ctx->parent != NULL)) {
 116                         new_ctx = this_ctx->parent;
 117                         TALLOC_FREE(this_ctx);
 118                         this_ctx = new_ctx;
 119                         return true;
 120                 }
 121         }
 122
 123         if (strequal(argv[0], "exit") || strequal(argv[0], "quit")) {
 124                 return false;
 125         }
 126
 127         if (strequal(argv[0], "help") || strequal(argv[0], "?")) {
 128                 for (cmd = ctx->cmds; cmd->name != NULL; cmd++) {
 129                         if (ctx != this_ctx) {
 130                                 d_printf("%s ", ctx->whoami);
 131                         }
 132                         d_printf("%-15s %s\n", cmd->name, cmd->help);
 133                 }
 134                 return true;
 135         }
 136
 137         for (cmd = ctx->cmds; cmd->name != NULL; cmd++) {
 138                 if (strequal(cmd->name, argv[0])) {
 139                         break;
 140                 }
 141         }
 142
 143         if (cmd->name == NULL) {
 144                 /* None found */
 145                 d_fprintf(stderr, "%s: unknown cmd\n", argv[0]);
 146                 return true;
 147         }
 148
 149         new_ctx = TALLOC_P(ctx, struct rpc_sh_ctx);
 150         if (new_ctx == NULL) {
 151                 d_fprintf(stderr, "talloc failed\n");
 152                 return false;
 153         }
 154         new_ctx->cli = ctx->cli;
 155         new_ctx->whoami = talloc_asprintf(new_ctx, "%s %s",
 156                                           ctx->whoami, cmd->name);
 157         new_ctx->thiscmd = talloc_strdup(new_ctx, cmd->name);
 158
 159         if (cmd->sub != NULL) {
 160                 new_ctx->cmds = cmd->sub(c, new_ctx, ctx);
 161         } else {
 162                 new_ctx->cmds = NULL;
 163         }
 164
 165         new_ctx->parent = ctx;
 166         new_ctx->domain_name = ctx->domain_name;
 167         new_ctx->domain_sid = ctx->domain_sid;
 168
 169         argc -= 1;
 170         argv += 1;
 171
 172         if (cmd->sub != NULL) {
 173                 if (argc == 0) {
 174                         this_ctx = new_ctx;
 175                         return true;
 176                 }
 177                 return net_sh_process(c, new_ctx, argc, argv);
 178         }
 179
 180         status = net_sh_run(c, new_ctx, cmd, argc, argv);
 181
 182         if (!NT_STATUS_IS_OK(status)) {
 183                 d_fprintf(stderr, "%s failed: %s\n", new_ctx->whoami,
 184                           nt_errstr(status));
 185         }
 186
 187         return true;
 188 }
 189
 190 static struct rpc_sh_cmd sh_cmds[6] = {
 191
 192         { "info", NULL, PI_SAMR, rpc_sh_info,
 193           "Print information about the domain connected to" },
 194
 195         { "rights", net_rpc_rights_cmds, 0, NULL,
 196           "List/Grant/Revoke user rights" },
 197
 198         { "share", net_rpc_share_cmds, 0, NULL,
 199           "List/Add/Remove etc shares" },
 200
 201         { "user", net_rpc_user_cmds, 0, NULL,
 202           "List/Add/Remove user info" },
 203
 204         { "account", net_rpc_acct_cmds, 0, NULL,
 205           "Show/Change account policy settings" },
 206
 207         { NULL, NULL, 0, NULL, NULL }
 208 };
 209
 210 int net_rpc_shell(struct net_context *c, int argc, const char **argv)
 211 {
 212         NTSTATUS status;
 213         struct rpc_sh_ctx *ctx;
 214
 215         if (argc != 0 || c->display_usage) {
 216                 d_printf("Usage:\n"
 217                          "net rpc shell\n");
 218                 return -1;
 219         }
 220
 221         ctx = TALLOC_P(NULL, struct rpc_sh_ctx);
 222         if (ctx == NULL) {
 223                 d_fprintf(stderr, "talloc failed\n");
 224                 return -1;
 225         }
 226
 227         status = net_make_ipc_connection(c, 0, &(ctx->cli));
 228         if (!NT_STATUS_IS_OK(status)) {
 229                 d_fprintf(stderr, "Could not open connection: %s\n",
 230                           nt_errstr(status));
 231                 return -1;
 232         }
 233
 234         ctx->cmds = sh_cmds;
 235         ctx->whoami = "net rpc";
 236         ctx->parent = NULL;
 237
 238         status = net_get_remote_domain_sid(ctx->cli, ctx, &ctx->domain_sid,
 239                                            &ctx->domain_name);
 240         if (!NT_STATUS_IS_OK(status)) {
 241                 return -1;
 242         }
 243
 244         d_printf("Talking to domain %s (%s)\n", ctx->domain_name,
 245                  sid_string_tos(ctx->domain_sid));
 246
 247         this_ctx = ctx;
 248
 249         while(1) {
 250                 char *prompt = NULL;
 251                 char *line = NULL;
 252                 int ret;
 253
 254                 if (asprintf(&prompt, "%s> ", this_ctx->whoami) < 0) {
 255                         break;
 256                 }
 257
 258                 line = smb_readline(prompt, NULL, completion_fn);
 259                 SAFE_FREE(prompt);
 260
 261                 if (line == NULL) {
 262                         break;
 263                 }
 264
 265                 ret = poptParseArgvString(line, &argc, &argv);
 266                 if (ret == POPT_ERROR_NOARG) {
 267                         SAFE_FREE(line);
 268                         continue;
 269                 }
 270                 if (ret != 0) {
 271                         d_fprintf(stderr, "cmdline invalid: %s\n",
 272                                   poptStrerror(ret));
 273                         SAFE_FREE(line);
 274                         return false;
 275                 }
 276
 277                 if ((line[0] != '\n') &&
 278                     (!net_sh_process(c, this_ctx, argc, argv))) {
 279                         SAFE_FREE(line);
 280                         break;
 281                 }
 282                 SAFE_FREE(line);
 283         }
 284
 285         cli_shutdown(ctx->cli);
 286
 287         TALLOC_FREE(ctx);
 288
 289         return 0;
 290 }