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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/param.h>
#include <sys/module.h>
#include <netlink/netlink.h>
#include <netlink/netlink_route.h>
#include "netlink/netlink_snl.h"
#include "netlink/netlink_snl_route.h"
#include "netlink/netlink_snl_route_parsers.h"
#include <atf-c.h>
static const struct snl_hdr_parser *snl_all_core_parsers[] = {
&snl_errmsg_parser, &snl_donemsg_parser,
&_nla_bit_parser, &_nla_bitset_parser,
};
static const struct snl_hdr_parser *snl_all_route_parsers[] = {
&_metrics_mp_nh_parser, &_mpath_nh_parser, &_metrics_parser, &snl_rtm_route_parser,
&_link_fbsd_parser, &snl_rtm_link_parser, &snl_rtm_link_parser_simple,
&_neigh_fbsd_parser, &snl_rtm_neigh_parser,
&_addr_fbsd_parser, &snl_rtm_addr_parser, &_nh_fbsd_parser, &snl_nhmsg_parser,
};
static void
require_netlink(void)
{
if (modfind("netlink") == -1)
atf_tc_skip("netlink module not loaded");
}
ATF_TC(snl_verify_core_parsers);
ATF_TC_HEAD(snl_verify_core_parsers, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests snl(3) core nlmsg parsers are correct");
}
ATF_TC_BODY(snl_verify_core_parsers, tc)
{
SNL_VERIFY_PARSERS(snl_all_core_parsers);
}
ATF_TC(snl_verify_route_parsers);
ATF_TC_HEAD(snl_verify_route_parsers, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests snl(3) route parsers are correct");
}
ATF_TC_BODY(snl_verify_route_parsers, tc)
{
SNL_VERIFY_PARSERS(snl_all_route_parsers);
}
ATF_TC(snl_parse_errmsg_capped);
ATF_TC_HEAD(snl_parse_errmsg_capped, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests snl(3) correctly parsing capped errors");
}
ATF_TC_BODY(snl_parse_errmsg_capped, tc)
{
struct snl_state ss;
struct snl_writer nw;
require_netlink();
if (!snl_init(&ss, NETLINK_ROUTE))
atf_tc_fail("snl_init() failed");
atf_tc_skip("does not work");
int optval = 1;
ATF_CHECK(setsockopt(ss.fd, SOL_NETLINK, NETLINK_CAP_ACK, &optval, sizeof(optval)) == 0);
snl_init_writer(&ss, &nw);
struct nlmsghdr *hdr = snl_create_msg_request(&nw, 255);
ATF_CHECK(hdr != NULL);
ATF_CHECK(snl_reserve_msg_object(&nw, struct ifinfomsg) != NULL);
snl_add_msg_attr_string(&nw, 143, "some random string");
ATF_CHECK(snl_finalize_msg(&nw) != NULL);
ATF_CHECK(snl_send_message(&ss, hdr));
struct nlmsghdr *rx_hdr = snl_read_reply(&ss, hdr->nlmsg_seq);
ATF_CHECK(rx_hdr != NULL);
ATF_CHECK(rx_hdr->nlmsg_type == NLMSG_ERROR);
struct snl_errmsg_data e = {};
ATF_CHECK(rx_hdr->nlmsg_len == sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr));
ATF_CHECK(snl_parse_errmsg(&ss, rx_hdr, &e));
ATF_CHECK(e.error != 0);
ATF_CHECK(!memcmp(hdr, e.orig_hdr, sizeof(struct nlmsghdr)));
}
ATF_TC(snl_parse_errmsg_capped_extack);
ATF_TC_HEAD(snl_parse_errmsg_capped_extack, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests snl(3) correctly parsing capped errors with extack");
}
ATF_TC_BODY(snl_parse_errmsg_capped_extack, tc)
{
struct snl_state ss;
struct snl_writer nw;
require_netlink();
if (!snl_init(&ss, NETLINK_ROUTE))
atf_tc_fail("snl_init() failed");
int optval = 1;
ATF_CHECK(setsockopt(ss.fd, SOL_NETLINK, NETLINK_CAP_ACK, &optval, sizeof(optval)) == 0);
optval = 1;
ATF_CHECK(setsockopt(ss.fd, SOL_NETLINK, NETLINK_EXT_ACK, &optval, sizeof(optval)) == 0);
snl_init_writer(&ss, &nw);
struct nlmsghdr *hdr = snl_create_msg_request(&nw, 255);
ATF_CHECK(hdr != NULL);
ATF_CHECK(snl_reserve_msg_object(&nw, struct ifinfomsg) != NULL);
snl_add_msg_attr_string(&nw, 143, "some random string");
ATF_CHECK(snl_finalize_msg(&nw) != NULL);
ATF_CHECK(snl_send_message(&ss, hdr));
struct nlmsghdr *rx_hdr = snl_read_reply(&ss, hdr->nlmsg_seq);
ATF_CHECK(rx_hdr != NULL);
ATF_CHECK(rx_hdr->nlmsg_type == NLMSG_ERROR);
struct snl_errmsg_data e = {};
ATF_CHECK(snl_parse_errmsg(&ss, rx_hdr, &e));
ATF_CHECK(e.error != 0);
ATF_CHECK(!memcmp(hdr, e.orig_hdr, sizeof(struct nlmsghdr)));
ATF_CHECK(e.error_str != NULL);
}
ATF_TC(snl_parse_errmsg_uncapped_extack);
ATF_TC_HEAD(snl_parse_errmsg_uncapped_extack, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests snl(3) correctly parsing errors with extack");
}
ATF_TC_BODY(snl_parse_errmsg_uncapped_extack, tc)
{
struct snl_state ss;
struct snl_writer nw;
require_netlink();
ATF_CHECK(snl_init(&ss, NETLINK_ROUTE));
int optval = 1;
ATF_CHECK(setsockopt(ss.fd, SOL_NETLINK, NETLINK_EXT_ACK, &optval, sizeof(optval)) == 0);
snl_init_writer(&ss, &nw);
struct nlmsghdr *hdr = snl_create_msg_request(&nw, 255);
ATF_CHECK(hdr != NULL);
ATF_CHECK(snl_reserve_msg_object(&nw, struct ifinfomsg) != NULL);
snl_add_msg_attr_string(&nw, 143, "some random string");
ATF_CHECK(snl_finalize_msg(&nw) != NULL);
ATF_CHECK(snl_send_message(&ss, hdr));
struct nlmsghdr *rx_hdr = snl_read_reply(&ss, hdr->nlmsg_seq);
ATF_CHECK(rx_hdr != NULL);
ATF_CHECK(rx_hdr->nlmsg_type == NLMSG_ERROR);
struct snl_errmsg_data e = {};
ATF_CHECK(snl_parse_errmsg(&ss, rx_hdr, &e));
ATF_CHECK(e.error != 0);
ATF_CHECK(!memcmp(hdr, e.orig_hdr, hdr->nlmsg_len));
ATF_CHECK(e.error_str != NULL);
}
ATF_TC(snl_list_ifaces);
ATF_TC_HEAD(snl_list_ifaces, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests snl(3) listing interfaces");
}
struct nl_parsed_link {
uint32_t ifi_index;
uint32_t ifla_mtu;
char *ifla_ifname;
};
#define _IN(_field) offsetof(struct ifinfomsg, _field)
#define _OUT(_field) offsetof(struct nl_parsed_link, _field)
static struct snl_attr_parser ap_link[] = {
{ .type = IFLA_IFNAME, .off = _OUT(ifla_ifname), .cb = snl_attr_get_string },
{ .type = IFLA_MTU, .off = _OUT(ifla_mtu), .cb = snl_attr_get_uint32 },
};
static struct snl_field_parser fp_link[] = {
{.off_in = _IN(ifi_index), .off_out = _OUT(ifi_index), .cb = snl_field_get_uint32 },
};
#undef _IN
#undef _OUT
SNL_DECLARE_PARSER(link_parser, struct ifinfomsg, fp_link, ap_link);
ATF_TC_BODY(snl_list_ifaces, tc)
{
struct snl_state ss;
struct snl_writer nw;
require_netlink();
if (!snl_init(&ss, NETLINK_ROUTE))
atf_tc_fail("snl_init() failed");
snl_init_writer(&ss, &nw);
struct nlmsghdr *hdr = snl_create_msg_request(&nw, RTM_GETLINK);
ATF_CHECK(hdr != NULL);
ATF_CHECK(snl_reserve_msg_object(&nw, struct ifinfomsg) != NULL);
ATF_CHECK(snl_finalize_msg(&nw) != NULL);
uint32_t seq_id = hdr->nlmsg_seq;
ATF_CHECK(snl_send_message(&ss, hdr));
struct snl_errmsg_data e = {};
int count = 0;
while ((hdr = snl_read_reply_multi(&ss, seq_id, &e)) != NULL) {
count++;
}
ATF_REQUIRE(e.error == 0);
ATF_REQUIRE_MSG(count > 0, "Empty interface list");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, snl_verify_core_parsers);
ATF_TP_ADD_TC(tp, snl_verify_route_parsers);
ATF_TP_ADD_TC(tp, snl_parse_errmsg_capped);
ATF_TP_ADD_TC(tp, snl_parse_errmsg_capped_extack);
ATF_TP_ADD_TC(tp, snl_parse_errmsg_uncapped_extack);
ATF_TP_ADD_TC(tp, snl_list_ifaces);
return (atf_no_error());
}
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