diff options
Diffstat (limited to 'tests/ct_mark_filter.c')
| -rw-r--r-- | tests/ct_mark_filter.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/tests/ct_mark_filter.c b/tests/ct_mark_filter.c new file mode 100644 index 0000000..cd6dd27 --- /dev/null +++ b/tests/ct_mark_filter.c @@ -0,0 +1,149 @@ +#include <assert.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <netinet/in.h> + +#include <libmnl/libmnl.h> +#include <libnetfilter_conntrack/libnetfilter_conntrack.h> + +#include "nssocket.h" + +static void tcp_echo_before_fin(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + uint8_t proto = IPPROTO_TCP; + + sync_fifo(pre); + timeout.tv_sec = INIT_TIMEOUT; + handle_qacb(nl, true, cb_tcp_new, &proto); + handle_qacb(nl, true, cb_tcp_syn_recv, &proto); + handle_qacb(nl, true, cb_tcp_established, &proto); + handle_qacb(nl, false, NULL, NULL); + sync_fifo(post); +} + +static void tcp_echo_after_fin(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + uint8_t proto = IPPROTO_TCP; + + sync_fifo(pre); + timeout.tv_sec = INIT_TIMEOUT; + handle_qacb(nl, true, cb_tcp_fin_wait, &proto); + handle_qacb(nl, true, cb_tcp_close_wait, &proto); + handle_qacb(nl, true, cb_tcp_close, &proto); + handle_qacb(nl, true, cb_tcp_destroy, &proto); + handle_qacb(nl, false, NULL, NULL); + sync_fifo(post); +} + +static void filter_mark_zero(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + struct nfct_filter *filter = nfct_filter_create(); + struct nfct_filter_dump_mark mark = {val: 0, mask: 0}; + + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + assert(nfct_filter_attach(mnl_socket_get_fd(nl), filter) != -1); + nfct_filter_destroy(filter); + tcp_echo(nl, pre, post); + assert(nfct_filter_detach(mnl_socket_get_fd(nl)) != -1); +} + +static void filter_mark_1_1(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + struct nfct_filter *filter = nfct_filter_create(); + struct nfct_filter_dump_mark mark = {val: 1, mask: 1}; + + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + assert(nfct_filter_attach(mnl_socket_get_fd(nl), filter) != -1); + nfct_filter_destroy(filter); + tcp_echo_after_fin(nl, pre, post); + assert(nfct_filter_detach(mnl_socket_get_fd(nl)) != -1); +} + +static void filter_mark_neg_1_1(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + struct nfct_filter *filter = nfct_filter_create(); + struct nfct_filter_dump_mark mark = {val: 1, mask: 1}; + + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + assert(nfct_filter_set_logic(filter, NFCT_FILTER_MARK, + NFCT_FILTER_LOGIC_NEGATIVE) != -1); + assert(nfct_filter_attach(mnl_socket_get_fd(nl), filter) != -1); + nfct_filter_destroy(filter); + tcp_echo_before_fin(nl, pre, post); + assert(nfct_filter_detach(mnl_socket_get_fd(nl)) != -1); +} + +static void filter_mark_neg_0_fffffffd(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + struct nfct_filter *filter = nfct_filter_create(); + struct nfct_filter_dump_mark mark = {val: 0, mask: 0xfffffffd}; + + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + assert(nfct_filter_set_logic(filter, NFCT_FILTER_MARK, + NFCT_FILTER_LOGIC_NEGATIVE) != -1); + assert(nfct_filter_attach(mnl_socket_get_fd(nl), filter) != -1); + nfct_filter_destroy(filter); + tcp_echo_after_fin(nl, pre, post); + assert(nfct_filter_detach(mnl_socket_get_fd(nl)) != -1); +} + +static void filter_mark_max(const struct mnl_socket *nl, + const char *pre, const char *post) +{ + struct nfct_filter *filter = nfct_filter_create(); + struct nfct_filter_dump_mark mark; + int i; + + for (i = 0; i < 126; i++) { + /* does not match to mark value 3 */ + mark = (struct nfct_filter_dump_mark){val: 0, mask: 3}; + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + } + + /* __FILTER_MARK_MAX 127, should be added */ + mark = (struct nfct_filter_dump_mark){val: 1, mask: 1}; + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + + /* over __FILTER_MARK_MAX, should be ignored */ + mark = (struct nfct_filter_dump_mark){val: 0, mask: 0}; + nfct_filter_add_attr(filter, NFCT_FILTER_MARK, &mark); + + assert(nfct_filter_attach(mnl_socket_get_fd(nl), filter) != -1); + nfct_filter_destroy(filter); + tcp_echo_after_fin(nl, pre, post); + assert(nfct_filter_detach(mnl_socket_get_fd(nl)) != -1); +} + +int main(int argc, char *argv[]) +{ + struct mnl_socket *nl; + char *pre, *post; + + if (argc != 4) { + fprintf(stderr, "usage: %s <netns> <pre_fifo> <post_fifo>\n", argv[0]); + exit(EXIT_FAILURE); + } + pre = argv[2]; + post = argv[3]; + + nl = mnl_event_nssocket(argv[1]); + if (nl == NULL) { + perror("init_mnl_socket"); + exit(EXIT_FAILURE); + } + + filter_mark_zero(nl, pre, post); + filter_mark_1_1(nl, pre, post); + filter_mark_neg_1_1(nl, pre, post); + filter_mark_neg_0_fffffffd(nl, pre, post); + filter_mark_max(nl, pre, post); + + return fini_nssocket(); +} |