214 lines
4.7 KiB
C
214 lines
4.7 KiB
C
/*
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* Copyright (C) 2014 Martin Willi
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* Copyright (C) 2014 revosec AG
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <errno.h>
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#include "command.h"
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#include <collections/hashtable.h>
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/**
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* Free hashtable with contained strings
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*/
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static void free_hashtable(hashtable_t *hashtable)
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{
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enumerator_t *enumerator;
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char *str;
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enumerator = hashtable->create_enumerator(hashtable);
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while (enumerator->enumerate(enumerator, NULL, &str))
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{
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free(str);
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}
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enumerator->destroy(enumerator);
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hashtable->destroy(hashtable);
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}
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CALLBACK(policy_values, int,
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hashtable_t *pol, vici_res_t *res, char *name, void *value, int len)
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{
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chunk_t chunk;
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char *str;
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chunk = chunk_create(value, len);
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if (chunk_printable(chunk, NULL, ' '))
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{
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if (asprintf(&str, "%.*s", len, value) >= 0)
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{
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free(pol->put(pol, name, str));
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}
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}
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return 0;
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}
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CALLBACK(policy_list, int,
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hashtable_t *pol, vici_res_t *res, char *name, void *value, int len)
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{
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chunk_t chunk;
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char *str;
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chunk = chunk_create(value, len);
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if (chunk_printable(chunk, NULL, ' '))
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{
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str = pol->get(pol, name);
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if (asprintf(&str, "%s%s%.*s",
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str ?: "", str ? " " : "", len, value) >= 0)
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{
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free(pol->put(pol, name, str));
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}
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}
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return 0;
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}
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CALLBACK(policies, int,
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void *null, vici_res_t *res, char *name)
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{
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hashtable_t *pol;
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int ret;
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pol = hashtable_create(hashtable_hash_str, hashtable_equals_str, 1);
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ret = vici_parse_cb(res, NULL, policy_values, policy_list, pol);
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printf("%s, %s\n", name, pol->get(pol, "mode"));
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printf(" local: %s\n", pol->get(pol, "local-ts"));
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printf(" remote: %s\n", pol->get(pol, "remote-ts"));
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free_hashtable(pol);
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return ret;
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}
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CALLBACK(list_cb, void,
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command_format_options_t *format, char *name, vici_res_t *res)
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{
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if (*format & COMMAND_FORMAT_RAW)
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{
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vici_dump(res, "list-policy event", *format & COMMAND_FORMAT_PRETTY,
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stdout);
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}
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else
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{
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if (vici_parse_cb(res, policies, NULL, NULL, NULL) != 0)
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{
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fprintf(stderr, "parsing policy event failed: %s\n", strerror(errno));
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}
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}
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}
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static int list_pols(vici_conn_t *conn)
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{
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vici_req_t *req;
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vici_res_t *res;
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bool trap = FALSE, drop = FALSE, pass = FALSE;
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command_format_options_t format = COMMAND_FORMAT_NONE;
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char *arg, *child = NULL;
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int ret;
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while (TRUE)
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{
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switch (command_getopt(&arg))
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{
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case 'h':
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return command_usage(NULL);
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case 'c':
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child = arg;
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continue;
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case 't':
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trap = TRUE;
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continue;
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case 'd':
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drop = TRUE;
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continue;
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case 'p':
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pass = TRUE;
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continue;
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case 'P':
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format |= COMMAND_FORMAT_PRETTY;
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/* fall through to raw */
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case 'r':
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format |= COMMAND_FORMAT_RAW;
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continue;
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case EOF:
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break;
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default:
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return command_usage("invalid --list-pols option");
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}
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break;
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}
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if (!trap && !drop && !pass)
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{
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trap = drop = pass = TRUE;
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}
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if (vici_register(conn, "list-policy", list_cb, &format) != 0)
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{
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ret = errno;
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fprintf(stderr, "registering for policies failed: %s\n",
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strerror(errno));
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return ret;
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}
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req = vici_begin("list-policies");
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if (child)
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{
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vici_add_key_valuef(req, "child", "%s", child);
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}
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if (trap)
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{
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vici_add_key_valuef(req, "trap", "yes");
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}
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if (drop)
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{
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vici_add_key_valuef(req, "drop", "yes");
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}
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if (pass)
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{
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vici_add_key_valuef(req, "pass", "yes");
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}
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res = vici_submit(req, conn);
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if (!res)
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{
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ret = errno;
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fprintf(stderr, "list-policies request failed: %s\n", strerror(errno));
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return ret;
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}
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if (format & COMMAND_FORMAT_RAW)
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{
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vici_dump(res, "list-policies reply", format & COMMAND_FORMAT_PRETTY, stdout);
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}
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vici_free_res(res);
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return 0;
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}
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/**
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* Register the command.
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*/
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static void __attribute__ ((constructor))reg()
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{
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command_register((command_t) {
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list_pols, 'P', "list-pols", "list currently installed policies",
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{"[--child <name>] [--trap] [--drop] [--pass] [--raw|--pretty]"},
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{
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{"help", 'h', 0, "show usage information"},
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{"child", 'c', 1, "filter policies by CHILD_SA config name"},
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{"trap", 't', 0, "list trap policies"},
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{"drop", 'd', 0, "list drop policies"},
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{"pass", 'p', 0, "list bypass policies"},
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{"raw", 'r', 0, "dump raw response message"},
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{"pretty", 'P', 0, "dump raw response message in pretty print"},
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}
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});
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}
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