nf-exp-delete.c

/* SPDX-License-Identifier: LGPL-2.1-only */
/*
 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
 * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
 * Copyright (c) 2007 Secure Computing Corporation
 * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
 */
 
#include <netlink/cli/utils.h>
#include <netlink/cli/exp.h>
 
#include <linux/rtnetlink.h>
 
static int quiet = 0;
 
static void print_usage(void)
{
        printf(
        "Usage: nf-exp-list [OPTION]... [CONNTRACK ENTRY]\n"
        "\n"
        "Options\n"
        "     --replace             Replace the address if it exists.\n"
        " -q, --quiet               Do not print informal notifications.\n"
        " -h, --help                Show this help\n"
        " -v, --version             Show versioning information\n"
        "\n"
        "Expectation Selection\n"
        " -i, --id=NUM                Identifier\n"
        "     --expect-proto=PROTOCOL Expectation protocol\n"
        "     --expect-src=ADDR       Expectation source address\n"
        "     --expect-sport=PORT     Expectation source port\n"
        "     --expect-dst=ADDR       Expectation destination address\n"
        "     --expect-dport=PORT     Expectation destination port\n"
        "     --master-proto=PROTOCOL Master conntrack protocol\n"
        "     --master-src=ADDR       Master conntrack source address\n"
        "     --master-sport=PORT     Master conntrack source port\n"
        "     --master-dst=ADDR       Master conntrack destination address\n"
        "     --master-dport=PORT     Master conntrack destination port\n"
        "     --mask-proto=PROTOCOL   Mask protocol\n"
        "     --mask-src=ADDR         Mask source address\n"
        "     --mask-sport=PORT       Mask source port\n"
        "     --mask-dst=ADDR         Mask destination address\n"
        "     --mask-dport=PORT       Mask destination port\n"
        " -F, --family=FAMILY         Address family\n"
        "     --timeout=NUM           Timeout value\n"
        "     --helper=STRING         Helper Name\n"
        "     --flags                 Flags\n"
        );
        exit(0);
}
 
int main(int argc, char *argv[])
{
        struct nl_sock *sock;
        struct nfnl_exp *exp;
        struct nl_dump_params params = {
                .dp_type = NL_DUMP_LINE,
                .dp_fd = stdout,
        };
        int err, nlflags = 0;
 
        exp = nl_cli_exp_alloc();
 
        for (;;) {
                int c, optidx = 0;
                enum {
                        ARG_MARK = 270,
                        ARG_TCP_STATE = 271,
                        ARG_EXPECT_PROTO,
                        ARG_EXPECT_SRC,
                        ARG_EXPECT_SPORT,
                        ARG_EXPECT_DST,
                        ARG_EXPECT_DPORT,
                        ARG_MASTER_PROTO,
                        ARG_MASTER_SRC,
                        ARG_MASTER_SPORT,
                        ARG_MASTER_DST,
                        ARG_MASTER_DPORT,
                        ARG_MASK_PROTO,
                        ARG_MASK_SRC,
                        ARG_MASK_SPORT,
                        ARG_MASK_DST,
                        ARG_MASK_DPORT,
                        ARG_TIMEOUT,
                        ARG_HELPER_NAME,
                        ARG_FLAGS,
                };
                static struct option long_opts[] = {
                        { "quiet", 0, 0, 'q' },
                        { "help", 0, 0, 'h' },
                        { "version", 0, 0, 'v' },
                        { "id", 1, 0, 'i' },
                        { "expect-proto", 1, 0, ARG_EXPECT_PROTO },
                        { "expect-src", 1, 0, ARG_EXPECT_SRC },
                        { "expect-sport", 1, 0, ARG_EXPECT_SPORT },
                        { "expect-dst", 1, 0, ARG_EXPECT_DST },
                        { "expect-dport", 1, 0, ARG_EXPECT_DPORT },
                        { "master-proto", 1, 0, ARG_MASTER_PROTO },
                        { "master-src", 1, 0, ARG_MASTER_SRC },
                        { "master-sport", 1, 0, ARG_MASTER_SPORT },
                        { "master-dst", 1, 0, ARG_MASTER_DST },
                        { "master-dport", 1, 0, ARG_MASTER_DPORT },
                        { "mask-proto", 1, 0, ARG_MASK_PROTO },
                        { "mask-src", 1, 0, ARG_MASK_SRC },
                        { "mask-sport", 1, 0, ARG_MASK_SPORT },
                        { "mask-dst", 1, 0, ARG_MASK_DST },
                        { "mask-dport", 1, 0, ARG_MASK_DPORT },
                        { "family", 1, 0, 'F' },
                        { "timeout", 1, 0, ARG_TIMEOUT },
                        { "helper", 1, 0, ARG_HELPER_NAME },
                        { "flags", 1, 0, ARG_FLAGS},
                        { 0, 0, 0, 0 }
                };
 
                c = getopt_long(argc, argv, "46f:hvi:p:F:", long_opts, &optidx);
                if (c == -1)
                        break;
 
                switch (c) {
                case '?': exit(NLE_INVAL);
                case 'q': quiet = 1; break;
                case '4': nfnl_exp_set_family(exp, AF_INET); break;
                case '6': nfnl_exp_set_family(exp, AF_INET6); break;
                case 'h': print_usage(); break;
                case 'v': nl_cli_print_version(); break;
                case 'i': nl_cli_exp_parse_id(exp, optarg); break;
                case ARG_EXPECT_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
                case ARG_EXPECT_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
                case ARG_EXPECT_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
                case ARG_EXPECT_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
                case ARG_EXPECT_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_EXPECT, optarg); break;
                case ARG_MASTER_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
                case ARG_MASTER_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
                case ARG_MASTER_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
                case ARG_MASTER_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
                case ARG_MASTER_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASTER, optarg); break;
                case ARG_MASK_PROTO: nl_cli_exp_parse_l4protonum(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
                case ARG_MASK_SRC: nl_cli_exp_parse_src(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
                case ARG_MASK_SPORT: nl_cli_exp_parse_src_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
                case ARG_MASK_DST: nl_cli_exp_parse_dst(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
                case ARG_MASK_DPORT: nl_cli_exp_parse_dst_port(exp, NFNL_EXP_TUPLE_MASK, optarg); break;
                case 'F': nl_cli_exp_parse_family(exp, optarg); break;
                case ARG_TIMEOUT: nl_cli_exp_parse_timeout(exp, optarg); break;
                case ARG_HELPER_NAME: nl_cli_exp_parse_helper_name(exp, optarg); break;
                case ARG_FLAGS: nl_cli_exp_parse_flags(exp, optarg); break;
                }
        }
 
        sock = nl_cli_alloc_socket();
        nl_cli_connect(sock, NETLINK_NETFILTER);
 
        if ((err = nfnl_exp_del(sock, exp, nlflags)) < 0)
                nl_cli_fatal(err, "Unable to delete expectation: %s", nl_geterror(err));
 
        if (!quiet) {
                printf("Deleted ");
                nl_object_dump(OBJ_CAST(exp), &params);
        }
 
        return 0;
}