/* Unix SMB/CIFS implementation. simple registry frontend Copyright (C) Jelmer Vernooij 2004-2007 Copyright (C) Wilco Baan Hofman 2009 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "lib/registry/registry.h" #include "lib/cmdline/popt_common.h" #include "lib/events/events.h" #include "system/time.h" #include "../libcli/smbreadline/smbreadline.h" #include "librpc/gen_ndr/ndr_security.h" #include "lib/registry/tools/common.h" #include "param/param.h" struct regshell_context { struct registry_context *registry; char *path; char *predef; struct registry_key *current; struct registry_key *root; }; static WERROR get_full_path(struct regshell_context *ctx, char *path, char **ret_path) { char *dir; char *tmp; char *new_path; if (path[0] == '\\') { new_path = talloc_strdup(ctx, ""); } else { new_path = talloc_strdup(ctx, ctx->path); } dir = strtok(path, "\\"); if (dir == NULL) { *ret_path = new_path; return WERR_OK; } do { if (strcmp(dir, "..") == 0) { if (strchr(new_path, '\\')) { new_path[strrchr(new_path, '\\') - new_path] = '\0'; } else { tmp = new_path; new_path = talloc_strdup(ctx, ""); talloc_free(tmp); } continue; } if (strcmp(dir, ".") == 0) { continue; } tmp = new_path; /* No prepending a backslash */ if (strcmp(new_path, "") == 0) { new_path = talloc_strdup(ctx, dir); } else { new_path = talloc_asprintf(ctx, "%s\\%s", new_path, dir); } talloc_free(tmp); } while ((dir = strtok(NULL, "\\"))); *ret_path = new_path; return WERR_OK; } /* * * ck/cd - change key * ls - list values/keys * rmval/rm - remove value * rmkey/rmdir - remove key * mkkey/mkdir - make key * ch - change hive * info - show key info * save - save hive * print - print value * help * exit */ static WERROR cmd_info(struct regshell_context *ctx, int argc, char **argv) { struct security_descriptor *sec_desc = NULL; time_t last_mod; WERROR error; const char *classname = NULL; NTTIME last_change; uint32_t max_subkeynamelen; uint32_t max_valnamelen; uint32_t max_valbufsize; uint32_t num_subkeys; uint32_t num_values; error = reg_key_get_info(ctx, ctx->current, &classname, &num_subkeys, &num_values, &last_change, &max_subkeynamelen, &max_valnamelen, &max_valbufsize); if (!W_ERROR_IS_OK(error)) { printf("Error getting key info: %s\n", win_errstr(error)); return error; } printf("Name: %s\n", strchr(ctx->path, '\\')?strrchr(ctx->path, '\\')+1: ctx->path); printf("Full path: %s\n", ctx->path); if (classname != NULL) printf("Key Class: %s\n", classname); last_mod = nt_time_to_unix(last_change); printf("Time Last Modified: %s", ctime(&last_mod)); printf("Number of subkeys: %d\n", num_subkeys); printf("Number of values: %d\n", num_values); if (max_valnamelen > 0) printf("Maximum value name length: %d\n", max_valnamelen); if (max_valbufsize > 0) printf("Maximum value data length: %d\n", max_valbufsize); if (max_subkeynamelen > 0) printf("Maximum sub key name length: %d\n", max_subkeynamelen); error = reg_get_sec_desc(ctx, ctx->current, &sec_desc); if (!W_ERROR_IS_OK(error)) { printf("Error getting security descriptor: %s\n", win_errstr(error)); return WERR_OK; } ndr_print_debug((ndr_print_fn_t)ndr_print_security_descriptor, "Security", sec_desc); talloc_free(sec_desc); return WERR_OK; } static WERROR cmd_predef(struct regshell_context *ctx, int argc, char **argv) { struct registry_key *ret = NULL; if (argc < 2) { fprintf(stderr, "Usage: predef predefined-key-name\n"); } else if (!ctx) { fprintf(stderr, "No full registry loaded, no predefined keys defined\n"); } else { WERROR error = reg_get_predefined_key_by_name(ctx->registry, argv[1], &ret); if (!W_ERROR_IS_OK(error)) { fprintf(stderr, "Error opening predefined key %s: %s\n", argv[1], win_errstr(error)); return error; } ctx->predef = strupper_talloc(ctx, argv[1]); ctx->current = ret; ctx->root = ret; } return WERR_OK; } static WERROR cmd_pwd(struct regshell_context *ctx, int argc, char **argv) { if (ctx->predef) { printf("%s\\", ctx->predef); } printf("%s\n", ctx->path); return WERR_OK; } static WERROR cmd_set(struct regshell_context *ctx, int argc, char **argv) { struct registry_value val; WERROR error; if (argc < 4) { fprintf(stderr, "Usage: set value-name type value\n"); return WERR_INVALID_PARAM; } if (!reg_string_to_val(ctx, argv[2], argv[3], &val.data_type, &val.data)) { fprintf(stderr, "Unable to interpret data\n"); return WERR_INVALID_PARAM; } error = reg_val_set(ctx->current, argv[1], val.data_type, val.data); if (!W_ERROR_IS_OK(error)) { fprintf(stderr, "Error setting value: %s\n", win_errstr(error)); return error; } return WERR_OK; } static WERROR cmd_ck(struct regshell_context *ctx, int argc, char **argv) { struct registry_key *nkey = NULL; char *full_path; WERROR error; if(argc == 2) { if (!W_ERROR_IS_OK(get_full_path(ctx, argv[1], &full_path))) { fprintf(stderr, "Unable to parse the supplied path\n"); return WERR_INVALID_PARAM; } error = reg_open_key(ctx->registry, ctx->root, full_path, &nkey); if(!W_ERROR_IS_OK(error)) { DEBUG(0, ("Error opening specified key: %s\n", win_errstr(error))); return error; } talloc_free(ctx->path); ctx->path = full_path; ctx->current = nkey; } printf("New path is: %s\\%s\n", ctx->predef?ctx->predef:"", ctx->path); return WERR_OK; } static WERROR cmd_print(struct regshell_context *ctx, int argc, char **argv) { uint32_t value_type; DATA_BLOB value_data; WERROR error; if (argc != 2) { fprintf(stderr, "Usage: print <valuename>\n"); return WERR_INVALID_PARAM; } error = reg_key_get_value_by_name(ctx, ctx->current, argv[1], &value_type, &value_data); if (!W_ERROR_IS_OK(error)) { fprintf(stderr, "No such value '%s'\n", argv[1]); return error; } printf("%s\n%s\n", str_regtype(value_type), reg_val_data_string(ctx, value_type, value_data)); return WERR_OK; } static WERROR cmd_ls(struct regshell_context *ctx, int argc, char **argv) { unsigned int i; WERROR error; uint32_t valuetype; DATA_BLOB valuedata; const char *name = NULL; for (i = 0; W_ERROR_IS_OK(error = reg_key_get_subkey_by_index(ctx, ctx->current, i, &name, NULL, NULL)); i++) { printf("K %s\n", name); } if (!W_ERROR_EQUAL(error, WERR_NO_MORE_ITEMS)) { fprintf(stderr, "Error occurred while browsing through keys: %s\n", win_errstr(error)); return error; } for (i = 0; W_ERROR_IS_OK(error = reg_key_get_value_by_index(ctx, ctx->current, i, &name, &valuetype, &valuedata)); i++) printf("V \"%s\" %s %s\n", name, str_regtype(valuetype), reg_val_data_string(ctx, valuetype, valuedata)); return WERR_OK; } static WERROR cmd_mkkey(struct regshell_context *ctx, int argc, char **argv) { struct registry_key *tmp; WERROR error; if(argc < 2) { fprintf(stderr, "Usage: mkkey <keyname>\n"); return WERR_INVALID_PARAM; } error = reg_key_add_name(ctx, ctx->current, argv[1], 0, NULL, &tmp); if (!W_ERROR_IS_OK(error)) { fprintf(stderr, "Error adding new subkey '%s': %s\n", argv[1], win_errstr(error)); return error; } return WERR_OK; } static WERROR cmd_rmkey(struct regshell_context *ctx, int argc, char **argv) { WERROR error; if(argc < 2) { fprintf(stderr, "Usage: rmkey <name>\n"); return WERR_INVALID_PARAM; } error = reg_key_del(ctx, ctx->current, argv[1]); if(!W_ERROR_IS_OK(error)) { fprintf(stderr, "Error deleting '%s'\n", argv[1]); return error; } else { fprintf(stderr, "Successfully deleted '%s'\n", argv[1]); } return WERR_OK; } static WERROR cmd_rmval(struct regshell_context *ctx, int argc, char **argv) { WERROR error; if(argc < 2) { fprintf(stderr, "Usage: rmval <valuename>\n"); return WERR_INVALID_PARAM; } error = reg_del_value(ctx, ctx->current, argv[1]); if(!W_ERROR_IS_OK(error)) { fprintf(stderr, "Error deleting value '%s'\n", argv[1]); return error; } else { fprintf(stderr, "Successfully deleted value '%s'\n", argv[1]); } return WERR_OK; } _NORETURN_ static WERROR cmd_exit(struct regshell_context *ctx, int argc, char **argv) { exit(0); } static WERROR cmd_help(struct regshell_context *ctx, int, char **); static struct { const char *name; const char *alias; const char *help; WERROR (*handle)(struct regshell_context *ctx, int argc, char **argv); } regshell_cmds[] = { {"ck", "cd", "Change current key", cmd_ck }, {"info", "i", "Show detailed information of a key", cmd_info }, {"list", "ls", "List values/keys in current key", cmd_ls }, {"print", "p", "Print value", cmd_print }, {"mkkey", "mkdir", "Make new key", cmd_mkkey }, {"rmval", "rm", "Remove value", cmd_rmval }, {"rmkey", "rmdir", "Remove key", cmd_rmkey }, {"pwd", "pwk", "Printing current key", cmd_pwd }, {"set", "update", "Update value", cmd_set }, {"help", "?", "Help", cmd_help }, {"exit", "quit", "Exit", cmd_exit }, {"predef", "predefined", "Go to predefined key", cmd_predef }, {NULL } }; static WERROR cmd_help(struct regshell_context *ctx, int argc, char **argv) { unsigned int i; printf("Available commands:\n"); for(i = 0; regshell_cmds[i].name; i++) { printf("%s - %s\n", regshell_cmds[i].name, regshell_cmds[i].help); } return WERR_OK; } static WERROR process_cmd(struct regshell_context *ctx, char *line) { int argc; char **argv = NULL; int ret, i; if ((ret = poptParseArgvString(line, &argc, (const char ***) &argv)) != 0) { fprintf(stderr, "regshell: %s\n", poptStrerror(ret)); return WERR_INVALID_PARAM; } for(i = 0; regshell_cmds[i].name; i++) { if(!strcmp(regshell_cmds[i].name, argv[0]) || (regshell_cmds[i].alias && !strcmp(regshell_cmds[i].alias, argv[0]))) { return regshell_cmds[i].handle(ctx, argc, argv); } } fprintf(stderr, "No such command '%s'\n", argv[0]); return WERR_INVALID_PARAM; } #define MAX_COMPLETIONS 100 static struct registry_key *current_key = NULL; static char **reg_complete_command(const char *text, int start, int end) { /* Complete command */ char **matches; size_t len, samelen=0; int i, count=1; matches = malloc_array_p(char *, MAX_COMPLETIONS); if (!matches) return NULL; matches[0] = NULL; len = strlen(text); for (i=0;regshell_cmds[i].handle && count < MAX_COMPLETIONS-1;i++) { if (strncmp(text, regshell_cmds[i].name, len) == 0) { matches[count] = strdup(regshell_cmds[i].name); if (!matches[count]) goto cleanup; if (count == 1) samelen = strlen(matches[count]); else while (strncmp(matches[count], matches[count-1], samelen) != 0) samelen--; count++; } } switch (count) { case 0: /* should never happen */ case 1: goto cleanup; case 2: matches[0] = strdup(matches[1]); break; default: matches[0] = strndup(matches[1], samelen); } matches[count] = NULL; return matches; cleanup: count--; while (count >= 0) { free(matches[count]); count--; } free(matches); return NULL; } static char **reg_complete_key(const char *text, int start, int end) { struct registry_key *base; const char *subkeyname; unsigned int i, j = 1; size_t len, samelen = 0; char **matches; const char *base_n = ""; TALLOC_CTX *mem_ctx; WERROR status; matches = malloc_array_p(char *, MAX_COMPLETIONS); if (!matches) return NULL; matches[0] = NULL; mem_ctx = talloc_init("completion"); base = current_key; len = strlen(text); for(i = 0; j < MAX_COMPLETIONS-1; i++) { status = reg_key_get_subkey_by_index(mem_ctx, base, i, &subkeyname, NULL, NULL); if(W_ERROR_IS_OK(status)) { if(!strncmp(text, subkeyname, len)) { matches[j] = strdup(subkeyname); j++; if (j == 1) samelen = strlen(matches[j]); else while (strncmp(matches[j], matches[j-1], samelen) != 0) samelen--; } } else if(W_ERROR_EQUAL(status, WERR_NO_MORE_ITEMS)) { break; } else { printf("Error creating completion list: %s\n", win_errstr(status)); talloc_free(mem_ctx); return NULL; } } if (j == 1) { /* No matches at all */ SAFE_FREE(matches); talloc_free(mem_ctx); return NULL; } if (j == 2) { /* Exact match */ asprintf(&matches[0], "%s%s", base_n, matches[1]); } else { asprintf(&matches[0], "%s%s", base_n, talloc_strndup(mem_ctx, matches[1], samelen)); } talloc_free(mem_ctx); matches[j] = NULL; return matches; } static char **reg_completion(const char *text, int start, int end) { smb_readline_ca_char(' '); if (start == 0) { return reg_complete_command(text, start, end); } else { return reg_complete_key(text, start, end); } } int main(int argc, char **argv) { int opt; const char *file = NULL; poptContext pc; const char *remote = NULL; struct regshell_context *ctx; struct tevent_context *ev_ctx; bool ret = true; struct poptOption long_options[] = { POPT_AUTOHELP {"file", 'F', POPT_ARG_STRING, &file, 0, "open hive file", NULL }, {"remote", 'R', POPT_ARG_STRING, &remote, 0, "connect to specified remote server", NULL}, POPT_COMMON_SAMBA POPT_COMMON_CREDENTIALS POPT_COMMON_VERSION { NULL } }; pc = poptGetContext(argv[0], argc, (const char **) argv, long_options,0); while((opt = poptGetNextOpt(pc)) != -1) { } ctx = talloc_zero(NULL, struct regshell_context); ev_ctx = s4_event_context_init(ctx); if (remote != NULL) { ctx->registry = reg_common_open_remote(remote, ev_ctx, cmdline_lp_ctx, cmdline_credentials); } else if (file != NULL) { ctx->current = reg_common_open_file(file, ev_ctx, cmdline_lp_ctx, cmdline_credentials); if (ctx->current == NULL) return 1; ctx->registry = ctx->current->context; ctx->path = talloc_strdup(ctx, ""); ctx->predef = NULL; ctx->root = ctx->current; } else { ctx->registry = reg_common_open_local(cmdline_credentials, ev_ctx, cmdline_lp_ctx); } if (ctx->registry == NULL) return 1; if (ctx->current == NULL) { unsigned int i; for (i = 0; (reg_predefined_keys[i].handle != 0) && (ctx->current == NULL); i++) { WERROR err; err = reg_get_predefined_key(ctx->registry, reg_predefined_keys[i].handle, &ctx->current); if (W_ERROR_IS_OK(err)) { ctx->predef = talloc_strdup(ctx, reg_predefined_keys[i].name); ctx->path = talloc_strdup(ctx, ""); ctx->root = ctx->current; break; } else { ctx->current = NULL; ctx->root = NULL; } } } if (ctx->current == NULL) { fprintf(stderr, "Unable to access any of the predefined keys\n"); return 1; } poptFreeContext(pc); while (true) { char *line, *prompt; if (asprintf(&prompt, "%s\\%s> ", ctx->predef?ctx->predef:"", ctx->path) < 0) { ret = false; break; } current_key = ctx->current; /* No way to pass a void * pointer via readline :-( */ line = smb_readline(prompt, NULL, reg_completion); if (line == NULL) { free(prompt); break; } if (line[0] != '\n') { ret = W_ERROR_IS_OK(process_cmd(ctx, line)); } free(line); free(prompt); } talloc_free(ctx); return (ret?0:1); }