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(TALLOC_CTX *mem_ctx, struct rpc_sh_ctx *ctx,
  25                             struct rpc_pipe_client *pipe_hnd,
  26                             int argc, const char **argv)
  27 {
  28         return rpc_info_internals(ctx->domain_sid, ctx->domain_name,
  29                                   ctx->cli, pipe_hnd, mem_ctx,
  30                                   argc, argv);
  31 }
  32
  33 static struct rpc_sh_ctx *this_ctx;
  34
  35 static char **completion_fn(const char *text, int start, int end)
  36 {
  37         char **cmds = NULL;
  38         int n_cmds = 0;
  39         struct rpc_sh_cmd *c;
  40
  41         if (start != 0) {
  42                 return NULL;
  43         }
  44
  45         ADD_TO_ARRAY(NULL, char *, SMB_STRDUP(text), &cmds, &n_cmds);
  46
  47         for (c = this_ctx->cmds; c->name != NULL; c++) {
  48                 bool match = (strncmp(text, c->name, strlen(text)) == 0);
  49
  50                 if (match) {
  51                         ADD_TO_ARRAY(NULL, char *, SMB_STRDUP(c->name),
  52                                      &cmds, &n_cmds);
  53                 }
  54         }
  55
  56         if (n_cmds == 2) {
  57                 SAFE_FREE(cmds[0]);
  58                 cmds[0] = cmds[1];
  59                 n_cmds -= 1;
  60         }
  61
  62         ADD_TO_ARRAY(NULL, char *, NULL, &cmds, &n_cmds);
  63         return cmds;
  64 }
  65
  66 static NTSTATUS net_sh_run(struct rpc_sh_ctx *ctx, struct rpc_sh_cmd *cmd,
  67                            int argc, const char **argv)
  68 {
  69         TALLOC_CTX *mem_ctx;
  70         struct rpc_pipe_client *pipe_hnd;
  71         NTSTATUS status;
  72
  73         mem_ctx = talloc_new(ctx);
  74         if (mem_ctx == NULL) {
  75                 d_fprintf(stderr, "talloc_new failed\n");
  76                 return NT_STATUS_NO_MEMORY;
  77         }
  78
  79         pipe_hnd = cli_rpc_pipe_open_noauth(ctx->cli, cmd->pipe_idx, &status);
  80         if (pipe_hnd == NULL) {
  81                 d_fprintf(stderr, "Could not open pipe: %s\n",
  82                           nt_errstr(status));
  83                 return status;
  84         }
  85
  86         status = cmd->fn(mem_ctx, ctx, pipe_hnd, argc, argv);
  87
  88         cli_rpc_pipe_close(pipe_hnd);
  89
  90         talloc_destroy(mem_ctx);
  91
  92         return status;
  93 }
  94
  95 static bool net_sh_process(struct rpc_sh_ctx *ctx,
  96                            int argc, const char **argv)
  97 {
  98         struct rpc_sh_cmd *c;
  99         struct rpc_sh_ctx *new_ctx;
 100         NTSTATUS status;
 101
 102         if (argc == 0) {
 103                 return True;
 104         }
 105
 106         if (ctx == this_ctx) {
 107
 108                 /* We've been called from the cmd line */
 109                 if (strequal(argv[0], "..") &&
 110                     (this_ctx->parent != NULL)) {
 111                         new_ctx = this_ctx->parent;
 112                         TALLOC_FREE(this_ctx);
 113                         this_ctx = new_ctx;
 114                         return True;
 115                 }
 116         }
 117
 118         if (strequal(argv[0], "exit") || strequal(argv[0], "quit")) {
 119                 return False;
 120         }
 121
 122         if (strequal(argv[0], "help") || strequal(argv[0], "?")) {
 123                 for (c = ctx->cmds; c->name != NULL; c++) {
 124                         if (ctx != this_ctx) {
 125                                 d_printf("%s ", ctx->whoami);
 126                         }
 127                         d_printf("%-15s %s\n", c->name, c->help);
 128                 }
 129                 return True;
 130         }
 131
 132         for (c = ctx->cmds; c->name != NULL; c++) {
 133                 if (strequal(c->name, argv[0])) {
 134                         break;
 135                 }
 136         }
 137
 138         if (c->name == NULL) {
 139                 /* None found */
 140                 d_fprintf(stderr, "%s: unknown cmd\n", argv[0]);
 141                 return True;
 142         }
 143
 144         new_ctx = TALLOC_P(ctx, struct rpc_sh_ctx);
 145         if (new_ctx == NULL) {
 146                 d_fprintf(stderr, "talloc failed\n");
 147                 return False;
 148         }
 149         new_ctx->cli = ctx->cli;
 150         new_ctx->whoami = talloc_asprintf(new_ctx, "%s %s",
 151                                           ctx->whoami, c->name);
 152         new_ctx->thiscmd = talloc_strdup(new_ctx, c->name);
 153
 154         if (c->sub != NULL) {
 155                 new_ctx->cmds = c->sub(new_ctx, ctx);
 156         } else {
 157                 new_ctx->cmds = NULL;
 158         }
 159
 160         new_ctx->parent = ctx;
 161         new_ctx->domain_name = ctx->domain_name;
 162         new_ctx->domain_sid = ctx->domain_sid;
 163
 164         argc -= 1;
 165         argv += 1;
 166
 167         if (c->sub != NULL) {
 168                 if (argc == 0) {
 169                         this_ctx = new_ctx;
 170                         return True;
 171                 }
 172                 return net_sh_process(new_ctx, argc, argv);
 173         }
 174
 175         status = net_sh_run(new_ctx, c, argc, argv);
 176
 177         if (!NT_STATUS_IS_OK(status)) {
 178                 d_fprintf(stderr, "%s failed: %s\n", new_ctx->whoami,
 179                           nt_errstr(status));
 180         }
 181
 182         return True;
 183 }
 184
 185 static struct rpc_sh_cmd sh_cmds[6] = {
 186
 187         { "info", NULL, PI_SAMR, rpc_sh_info,
 188           "Print information about the domain connected to" },
 189
 190         { "rights", net_rpc_rights_cmds, 0, NULL,
 191           "List/Grant/Revoke user rights" },
 192
 193         { "share", net_rpc_share_cmds, 0, NULL,
 194           "List/Add/Remove etc shares" },
 195
 196         { "user", net_rpc_user_cmds, 0, NULL,
 197           "List/Add/Remove user info" },
 198
 199         { "account", net_rpc_acct_cmds, 0, NULL,
 200           "Show/Change account policy settings" },
 201
 202         { NULL, NULL, 0, NULL, NULL }
 203 };
 204
 205 int net_rpc_shell(int argc, const char **argv)
 206 {
 207         NTSTATUS status;
 208         struct rpc_sh_ctx *ctx;
 209
 210         if (argc != 0) {
 211                 d_fprintf(stderr, "usage: net rpc shell\n");
 212                 return -1;
 213         }
 214
 215         ctx = TALLOC_P(NULL, struct rpc_sh_ctx);
 216         if (ctx == NULL) {
 217                 d_fprintf(stderr, "talloc failed\n");
 218                 return -1;
 219         }
 220
 221         status = net_make_ipc_connection(0, &(ctx->cli));
 222         if (!NT_STATUS_IS_OK(status)) {
 223                 d_fprintf(stderr, "Could not open connection: %s\n",
 224                           nt_errstr(status));
 225                 return -1;
 226         }
 227
 228         ctx->cmds = sh_cmds;
 229         ctx->whoami = "net rpc";
 230         ctx->parent = NULL;
 231
 232         status = net_get_remote_domain_sid(ctx->cli, ctx, &ctx->domain_sid,
 233                                            &ctx->domain_name);
 234         if (!NT_STATUS_IS_OK(status)) {
 235                 return -1;
 236         }
 237
 238         d_printf("Talking to domain %s (%s)\n", ctx->domain_name,
 239                  sid_string_tos(ctx->domain_sid));
 240
 241         this_ctx = ctx;
 242
 243         while(1) {
 244                 char *prompt = NULL;
 245                 char *line = NULL;
 246                 int ret;
 247
 248                 if (asprintf(&prompt, "%s> ", this_ctx->whoami) < 0) {
 249                         break;
 250                 }
 251
 252                 line = smb_readline(prompt, NULL, completion_fn);
 253                 SAFE_FREE(prompt);
 254
 255                 if (line == NULL) {
 256                         break;
 257                 }
 258
 259                 ret = poptParseArgvString(line, &argc, &argv);
 260                 if (ret == POPT_ERROR_NOARG) {
 261                         SAFE_FREE(line);
 262                         continue;
 263                 }
 264                 if (ret != 0) {
 265                         d_fprintf(stderr, "cmdline invalid: %s\n",
 266                                   poptStrerror(ret));
 267                         SAFE_FREE(line);
 268                         return False;
 269                 }
 270
 271                 if ((line[0] != '\n') &&
 272                     (!net_sh_process(this_ctx, argc, argv))) {
 273                         SAFE_FREE(line);
 274                         break;
 275                 }
 276                 SAFE_FREE(line);
 277         }
 278
 279         cli_shutdown(ctx->cli);
 280
 281         TALLOC_FREE(ctx);
 282
 283         return 0;
 284 }