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-rw-r--r--source3/utils/net_cache.c652
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diff --git a/source3/utils/net_cache.c b/source3/utils/net_cache.c
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+++ b/source3/utils/net_cache.c
@@ -0,0 +1,652 @@
+/*
+ Samba Unix/Linux SMB client library
+ Distributed SMB/CIFS Server Management Utility
+ Copyright (C) Rafal Szczesniak 2002
+
+ 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 "net.h"
+#include "libsmb/samlogon_cache.h"
+#include "../librpc/gen_ndr/netlogon.h"
+#include "../librpc/gen_ndr/ndr_netlogon.h"
+#include "libcli/security/dom_sid.h"
+#include "lib/util/strv.h"
+#include "lib/gencache.h"
+
+/**
+ * @file net_cache.c
+ * @brief This is part of the net tool which is basically command
+ * line wrapper for gencache.c functions (mainly for testing)
+ *
+ **/
+
+
+/*
+ * These routines are used via gencache_iterate() to display the cache's contents
+ * (print_cache_entry) and to flush it (delete_cache_entry).
+ * Both of them are defined by first arg of gencache_iterate() routine.
+ */
+static void print_cache_entry(const char* keystr, DATA_BLOB value,
+ const time_t timeout, void* dptr)
+{
+ char *timeout_str;
+ char *alloc_str = NULL;
+ const char *datastr;
+ char *datastr_free = NULL;
+ time_t now_t = time(NULL);
+ struct tm timeout_tm, now_tm;
+ struct tm *ptimeout_tm, *pnow_tm;
+
+ ptimeout_tm = localtime_r(&timeout, &timeout_tm);
+ if (ptimeout_tm == NULL) {
+ return;
+ }
+ pnow_tm = localtime_r(&now_t, &now_tm);
+ if (pnow_tm == NULL) {
+ return;
+ }
+
+ /* form up timeout string depending whether it's today's date or not */
+ if (timeout_tm.tm_year != now_tm.tm_year ||
+ timeout_tm.tm_mon != now_tm.tm_mon ||
+ timeout_tm.tm_mday != now_tm.tm_mday) {
+
+ timeout_str = asctime(&timeout_tm);
+ if (!timeout_str) {
+ return;
+ }
+ timeout_str[strlen(timeout_str) - 1] = '\0'; /* remove tailing CR */
+ } else {
+ if (asprintf(&alloc_str, "%.2d:%.2d:%.2d", timeout_tm.tm_hour,
+ timeout_tm.tm_min, timeout_tm.tm_sec) == -1) {
+ return;
+ }
+ timeout_str = alloc_str;
+ }
+
+ datastr = (char *)value.data;
+
+ if (strnequal(keystr, "NAME2SID/", strlen("NAME2SID/"))) {
+ const char *strv = (char *)value.data;
+ size_t strv_len = value.length;
+ const char *sid = strv_len_next(strv, strv_len, NULL);
+ const char *type = strv_len_next(strv, strv_len, sid);
+ datastr = talloc_asprintf(talloc_tos(), "%s (%s)", sid, type);
+ }
+
+ if (strnequal(keystr, "SID2NAME/", strlen("SID2NAME/"))) {
+ const char *strv = (char *)value.data;
+ size_t strv_len = value.length;
+ const char *domain = strv_len_next(strv, strv_len, NULL);
+ const char *name = strv_len_next(strv, strv_len, domain);
+ const char *type = strv_len_next(strv, strv_len, name);
+ datastr = talloc_asprintf(talloc_tos(), "%s\\%s (%s)",
+ domain, name, type);
+ }
+
+ if ((value.length > 0) && (value.data[value.length-1] != '\0')) {
+ datastr_free = talloc_asprintf(
+ talloc_tos(), "<binary length %d>",
+ (int)value.length);
+ datastr = datastr_free;
+ if (datastr == NULL) {
+ datastr = "<binary>";
+ }
+ }
+
+ d_printf(_("Key: %s\t Timeout: %s\t Value: %s %s\n"), keystr,
+ timeout_str, datastr, timeout > now_t ? "": _("(expired)"));
+
+ SAFE_FREE(alloc_str);
+}
+
+static void delete_cache_entry(const char* keystr, const char* datastr,
+ const time_t timeout, void* dptr)
+{
+ if (!gencache_del(keystr))
+ d_fprintf(stderr, _("Couldn't delete entry! key = %s\n"),
+ keystr);
+}
+
+
+/**
+ * Parse text representation of timeout value
+ *
+ * @param timeout_str string containing text representation of the timeout
+ * @return numeric timeout of time_t type
+ **/
+static time_t parse_timeout(const char* timeout_str)
+{
+ char sign = '\0', *number = NULL, unit = '\0';
+ int len, number_begin, number_end;
+ time_t timeout;
+
+ /* sign detection */
+ if (timeout_str[0] == '!' || timeout_str[0] == '+') {
+ sign = timeout_str[0];
+ number_begin = 1;
+ } else {
+ number_begin = 0;
+ }
+
+ /* unit detection */
+ len = strlen(timeout_str);
+ switch (timeout_str[len - 1]) {
+ case 's':
+ case 'm':
+ case 'h':
+ case 'd':
+ case 'w': unit = timeout_str[len - 1];
+ }
+
+ /* number detection */
+ len = (sign) ? strlen(&timeout_str[number_begin]) : len;
+ number_end = (unit) ? len - 1 : len;
+ number = SMB_STRNDUP(&timeout_str[number_begin], number_end);
+
+ /* calculate actual timeout value */
+ timeout = (time_t)atoi(number);
+
+ switch (unit) {
+ case 'm': timeout *= 60; break;
+ case 'h': timeout *= 60*60; break;
+ case 'd': timeout *= 60*60*24; break;
+ case 'w': timeout *= 60*60*24*7; break; /* that's fair enough, I think :) */
+ }
+
+ switch (sign) {
+ case '!': timeout = time(NULL) - timeout; break;
+ case '+':
+ default: timeout += time(NULL); break;
+ }
+
+ if (number) SAFE_FREE(number);
+ return timeout;
+}
+
+
+/**
+ * Add an entry to the cache. If it does exist, then set it.
+ *
+ * @param c A net_context structure
+ * @param argv key, value and timeout are passed in command line
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_add(struct net_context *c, int argc, const char **argv)
+{
+ const char *keystr, *datastr, *timeout_str;
+ time_t timeout;
+
+ if (argc < 3 || c->display_usage) {
+ d_printf("%s\n%s",
+ _("Usage:"),
+ _("net cache add <key string> <data string> "
+ "<timeout>\n"));
+ return -1;
+ }
+
+ keystr = argv[0];
+ datastr = argv[1];
+ timeout_str = argv[2];
+
+ /* parse timeout given in command line */
+ timeout = parse_timeout(timeout_str);
+ if (!timeout) {
+ d_fprintf(stderr, _("Invalid timeout argument.\n"));
+ return -1;
+ }
+
+ if (gencache_set(keystr, datastr, timeout)) {
+ d_printf(_("New cache entry stored successfully.\n"));
+ return 0;
+ }
+
+ d_fprintf(stderr, _("Entry couldn't be added. Perhaps there's already such a key.\n"));
+ return -1;
+}
+
+/**
+ * Delete an entry in the cache
+ *
+ * @param c A net_context structure
+ * @param argv key to delete an entry of
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_del(struct net_context *c, int argc, const char **argv)
+{
+ const char *keystr = argv[0];
+
+ if (argc < 1 || c->display_usage) {
+ d_printf("%s\n%s",
+ _("Usage:"),
+ _(" net cache del <key string>\n"));
+ return -1;
+ }
+
+ if(gencache_del(keystr)) {
+ d_printf(_("Entry deleted.\n"));
+ return 0;
+ }
+
+ d_fprintf(stderr, _("Couldn't delete specified entry\n"));
+ return -1;
+}
+
+
+/**
+ * Get and display an entry from the cache
+ *
+ * @param c A net_context structure
+ * @param argv key to search an entry of
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_get(struct net_context *c, int argc, const char **argv)
+{
+ const char* keystr = argv[0];
+ DATA_BLOB value;
+ time_t timeout;
+
+ if (argc < 1 || c->display_usage) {
+ d_printf("%s\n%s",
+ _("Usage:"),
+ _(" net cache get <key>\n"));
+ return -1;
+ }
+
+ if (gencache_get_data_blob(keystr, NULL, &value, &timeout, NULL)) {
+ print_cache_entry(keystr, value, timeout, NULL);
+ data_blob_free(&value);
+ return 0;
+ }
+
+ d_fprintf(stderr, _("Failed to find entry\n"));
+ return -1;
+}
+
+
+/**
+ * Search an entry/entries in the cache
+ *
+ * @param c A net_context structure
+ * @param argv key pattern to match the entries to
+ * @return 0 on success, otherwise failure
+ **/
+static int net_cache_search(struct net_context *c, int argc, const char **argv)
+{
+ const char* pattern;
+
+ if (argc < 1 || c->display_usage) {
+ d_printf("%s\n%s",
+ _("Usage:"),
+ _(" net cache search <pattern>\n"));
+ return -1;
+ }
+
+ pattern = argv[0];
+ gencache_iterate_blobs(print_cache_entry, NULL, pattern);
+ return 0;
+}
+
+
+/**
+ * List the contents of the cache
+ *
+ * @param c A net_context structure
+ * @param argv ignored in this functionailty
+ * @return always returns 0
+ **/
+static int net_cache_list(struct net_context *c, int argc, const char **argv)
+{
+ const char* pattern = "*";
+
+ if (c->display_usage) {
+ d_printf( "%s\n"
+ "net cache list\n"
+ " %s\n",
+ _("Usage:"),
+ _("List all cache entries."));
+ return 0;
+ }
+ gencache_iterate_blobs(print_cache_entry, NULL, pattern);
+ return 0;
+}
+
+
+/**
+ * Flush the whole cache
+ *
+ * @param c A net_context structure
+ * @param argv ignored in this functionality
+ * @return always returns 0
+ **/
+static int net_cache_flush(struct net_context *c, int argc, const char **argv)
+{
+ const char* pattern = "*";
+ if (c->display_usage) {
+ d_printf( "%s\n"
+ "net cache flush\n"
+ " %s",
+ _("Usage:"),
+ _("Delete all cache entries."));
+ return 0;
+ }
+ gencache_iterate(delete_cache_entry, NULL, pattern);
+ return 0;
+}
+
+static int netsamlog_cache_for_all_cb(const char *sid_str,
+ time_t when_cached,
+ struct netr_SamInfo3 *info3,
+ void *private_data)
+{
+ struct net_context *c = (struct net_context *)private_data;
+ char *name = NULL;
+
+ name = talloc_asprintf(c, "%s\\%s",
+ info3->base.logon_domain.string,
+ info3->base.account_name.string);
+ if (name == NULL) {
+ return -1;
+ }
+
+ d_printf("%-50s %-40s %s\n",
+ sid_str,
+ name,
+ timestring(c, when_cached));
+
+ return 0;
+}
+
+static int net_cache_samlogon_list(struct net_context *c,
+ int argc,
+ const char **argv)
+{
+ int ret;
+
+ d_printf("%-50s %-40s When cached\n", "SID", "Name");
+ d_printf("------------------------------------------------------------"
+ "------------------------------------------------------------"
+ "----\n");
+
+ ret = netsamlog_cache_for_all(netsamlog_cache_for_all_cb, c);
+ if (ret == -1) {
+ return -1;
+ }
+
+ return 0;
+}
+
+static int net_cache_samlogon_show(struct net_context *c,
+ int argc,
+ const char **argv)
+{
+ const char *sid_str = argv[0];
+ struct dom_sid sid;
+ struct dom_sid *user_sids = NULL;
+ uint32_t num_user_sids;
+ struct netr_SamInfo3 *info3 = NULL;
+ char *name = NULL;
+ uint32_t i;
+ NTSTATUS status;
+ bool ok;
+
+ if (argc != 1 || c->display_usage) {
+ d_printf("%s\n"
+ "net cache samlogon show SID\n"
+ " %s\n",
+ _("Usage:"),
+ _("Show samlogon cache entry for SID."));
+ return 0;
+ }
+
+ ok = string_to_sid(&sid, sid_str);
+ if (!ok) {
+ d_printf("String to SID failed for %s\n", sid_str);
+ return -1;
+ }
+
+ info3 = netsamlogon_cache_get(c, &sid);
+ if (info3 == NULL) {
+ d_printf("SID %s not found in samlogon cache\n", sid_str);
+ return -1;
+ }
+
+ name = talloc_asprintf(c, "%s\\%s",
+ info3->base.logon_domain.string,
+ info3->base.account_name.string);
+ if (name == NULL) {
+ return -1;
+ }
+
+ d_printf("Name: %s\n", name);
+
+ status = sid_array_from_info3(c,
+ info3,
+ &user_sids,
+ &num_user_sids,
+ true);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(user_sids);
+ d_printf("sid_array_from_info3 failed for %s\n", sid_str);
+ return -1;
+ }
+
+ for (i = 0; i < num_user_sids; i++) {
+ struct dom_sid_buf buf;
+ d_printf("SID %2" PRIu32 ": %s\n",
+ i,
+ dom_sid_str_buf(&user_sids[i], &buf));
+ }
+
+ TALLOC_FREE(user_sids);
+
+ return 0;
+}
+
+static int net_cache_samlogon_ndrdump(struct net_context *c,
+ int argc,
+ const char **argv)
+{
+ const char *sid_str = NULL;
+ struct dom_sid sid;
+ struct netr_SamInfo3 *info3 = NULL;
+ struct ndr_print *ndr_print = NULL;
+ bool ok;
+
+ if (argc != 1 || c->display_usage) {
+ d_printf( "%s\n"
+ "net cache samlogon ndrdump SID\n"
+ " %s\n",
+ _("Usage:"),
+ _("Show samlogon cache entry for SID."));
+ return 0;
+ }
+
+ sid_str = argv[0];
+
+ ok = string_to_sid(&sid, sid_str);
+ if (!ok) {
+ d_printf("String to SID failed for %s\n", sid_str);
+ return -1;
+ }
+
+ info3 = netsamlogon_cache_get(c, &sid);
+ if (info3 == NULL) {
+ d_printf("SID %s not found in samlogon cache\n", sid_str);
+ return -1;
+ }
+
+ ndr_print = talloc_zero(c, struct ndr_print);
+ if (ndr_print == NULL) {
+ d_printf("Could not allocate memory.\n");
+ return -1;
+ }
+
+ ndr_print->print = ndr_print_printf_helper;
+ ndr_print->depth = 1;
+ ndr_print_netr_SamInfo3(ndr_print, "netr_SamInfo3", info3);
+ TALLOC_FREE(ndr_print);
+
+ return 0;
+}
+
+static int net_cache_samlogon_delete(struct net_context *c,
+ int argc,
+ const char **argv)
+{
+ const char *sid_str = argv[0];
+ struct dom_sid sid;
+ bool ok;
+
+ if (argc != 1 || c->display_usage) {
+ d_printf( "%s\n"
+ "net cache samlogon delete SID\n"
+ " %s\n",
+ _("Usage:"),
+ _("Delete samlogon cache entry for SID."));
+ return 0;
+ }
+
+ ok = string_to_sid(&sid, sid_str);
+ if (!ok) {
+ d_printf("String to SID failed for %s\n", sid_str);
+ return -1;
+ }
+
+ netsamlogon_clear_cached_user(&sid);
+
+ return 0;
+}
+
+static int net_cache_samlogon(struct net_context *c, int argc, const char **argv)
+{
+ struct functable func[] = {
+ {
+ "list",
+ net_cache_samlogon_list,
+ NET_TRANSPORT_LOCAL,
+ N_("List samlogon cache"),
+ N_("net cache samlogon list\n"
+ " List samlogon cachen\n")
+ },
+ {
+ "show",
+ net_cache_samlogon_show,
+ NET_TRANSPORT_LOCAL,
+ N_("Show samlogon cache entry"),
+ N_("net cache samlogon show SID\n"
+ " Show samlogon cache entry\n")
+ },
+ {
+ "ndrdump",
+ net_cache_samlogon_ndrdump,
+ NET_TRANSPORT_LOCAL,
+ N_("Dump the samlogon cache entry NDR blob"),
+ N_("net cache samlogon ndrdump SID\n"
+ " Dump the samlogon cache entry NDR blob\n")
+ },
+ {
+ "delete",
+ net_cache_samlogon_delete,
+ NET_TRANSPORT_LOCAL,
+ N_("Delete samlogon cache entry"),
+ N_("net cache samlogon delete SID\n"
+ " Delete samlogon cache entry\n")
+ },
+ {NULL, NULL, 0, NULL, NULL}
+ };
+
+ return net_run_function(c, argc, argv, "net cache samlogon", func);
+}
+
+/**
+ * Entry point to 'net cache' subfunctionality
+ *
+ * @param c A net_context structure
+ * @param argv arguments passed to further called functions
+ * @return whatever further functions return
+ **/
+int net_cache(struct net_context *c, int argc, const char **argv)
+{
+ struct functable func[] = {
+ {
+ "add",
+ net_cache_add,
+ NET_TRANSPORT_LOCAL,
+ N_("Add new cache entry"),
+ N_("net cache add <key string> <data string> <timeout>\n"
+ " Add new cache entry.\n"
+ " key string\tKey string to add cache data under.\n"
+ " data string\tData to store under given key.\n"
+ " timeout\tTimeout for cache data.")
+ },
+ {
+ "del",
+ net_cache_del,
+ NET_TRANSPORT_LOCAL,
+ N_("Delete existing cache entry by key"),
+ N_("net cache del <key string>\n"
+ " Delete existing cache entry by key.\n"
+ " key string\tKey string to delete.")
+ },
+ {
+ "get",
+ net_cache_get,
+ NET_TRANSPORT_LOCAL,
+ N_("Get cache entry by key"),
+ N_("net cache get <key string>\n"
+ " Get cache entry by key.\n"
+ " key string\tKey string to look up cache entry for.")
+
+ },
+ {
+ "search",
+ net_cache_search,
+ NET_TRANSPORT_LOCAL,
+ N_("Search entry by pattern"),
+ N_("net cache search <pattern>\n"
+ " Search entry by pattern.\n"
+ " pattern\tPattern to search for in cache.")
+ },
+ {
+ "list",
+ net_cache_list,
+ NET_TRANSPORT_LOCAL,
+ N_("List all cache entries"),
+ N_("net cache list\n"
+ " List all cache entries")
+ },
+ {
+ "flush",
+ net_cache_flush,
+ NET_TRANSPORT_LOCAL,
+ N_("Delete all cache entries"),
+ N_("net cache flush\n"
+ " Delete all cache entries")
+ },
+ {
+ "samlogon",
+ net_cache_samlogon,
+ NET_TRANSPORT_LOCAL,
+ N_("List contents of the samlogon cache"),
+ N_("net cache samlogon\n"
+ " List contents of the samlogon cache")
+ },
+ {NULL, NULL, 0, NULL, NULL}
+ };
+
+ return net_run_function(c, argc, argv, "net cache", func);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 18:52:32 +0000