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Diffstat (limited to 'samples/bpf/xdp_router_ipv4_user.c')
-rw-r--r--samples/bpf/xdp_router_ipv4_user.c471
1 files changed, 255 insertions, 216 deletions
diff --git a/samples/bpf/xdp_router_ipv4_user.c b/samples/bpf/xdp_router_ipv4_user.c
index b2b4dfa776c8..266fdd0b025d 100644
--- a/samples/bpf/xdp_router_ipv4_user.c
+++ b/samples/bpf/xdp_router_ipv4_user.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (C) 2017 Cavium, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
*/
#include <linux/bpf.h>
#include <linux/netlink.h>
@@ -15,7 +12,6 @@
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
-#include "bpf_load.h"
#include <bpf/bpf.h>
#include <arpa/inet.h>
#include <fcntl.h>
@@ -25,53 +21,42 @@
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include "bpf_util.h"
-
-int sock, sock_arp, flags = 0;
-static int total_ifindex;
-int *ifindex_list;
-char buf[8192];
+#include <bpf/libbpf.h>
+#include <libgen.h>
+#include <getopt.h>
+#include <pthread.h>
+#include "xdp_sample_user.h"
+#include "xdp_router_ipv4.skel.h"
+
+static const char *__doc__ =
+"XDP IPv4 router implementation\n"
+"Usage: xdp_router_ipv4 <IFNAME-0> ... <IFNAME-N>\n";
+
+static char buf[8192];
+static int lpm_map_fd;
+static int arp_table_map_fd;
+static int exact_match_map_fd;
+static int tx_port_map_fd;
+
+static bool routes_thread_exit;
+static int interval = 5;
+
+static int mask = SAMPLE_RX_CNT | SAMPLE_REDIRECT_ERR_MAP_CNT |
+ SAMPLE_DEVMAP_XMIT_CNT_MULTI | SAMPLE_EXCEPTION_CNT;
+
+DEFINE_SAMPLE_INIT(xdp_router_ipv4);
+
+static const struct option long_options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "skb-mode", no_argument, NULL, 'S' },
+ { "force", no_argument, NULL, 'F' },
+ { "interval", required_argument, NULL, 'i' },
+ { "verbose", no_argument, NULL, 'v' },
+ { "stats", no_argument, NULL, 's' },
+ {}
+};
static int get_route_table(int rtm_family);
-static void int_exit(int sig)
-{
- int i = 0;
-
- for (i = 0; i < total_ifindex; i++)
- bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
- exit(0);
-}
-
-static void close_and_exit(int sig)
-{
- int i = 0;
-
- close(sock);
- close(sock_arp);
-
- for (i = 0; i < total_ifindex; i++)
- bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
- exit(0);
-}
-
-/* Get the mac address of the interface given interface name */
-static __be64 getmac(char *iface)
-{
- struct ifreq ifr;
- __be64 mac = 0;
- int fd, i;
-
- fd = socket(AF_INET, SOCK_DGRAM, 0);
- ifr.ifr_addr.sa_family = AF_INET;
- strncpy(ifr.ifr_name, iface, IFNAMSIZ - 1);
- if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) {
- printf("ioctl failed leaving....\n");
- return -1;
- }
- for (i = 0; i < 6 ; i++)
- *((__u8 *)&mac + i) = (__u8)ifr.ifr_hwaddr.sa_data[i];
- close(fd);
- return mac;
-}
static int recv_msg(struct sockaddr_nl sock_addr, int sock)
{
@@ -106,7 +91,7 @@ static int recv_msg(struct sockaddr_nl sock_addr, int sock)
static void read_route(struct nlmsghdr *nh, int nll)
{
char dsts[24], gws[24], ifs[16], dsts_len[24], metrics[24];
- struct bpf_lpm_trie_key *prefix_key;
+ struct bpf_lpm_trie_key_u8 *prefix_key;
struct rtattr *rt_attr;
struct rtmsg *rt_msg;
int rtm_family;
@@ -114,7 +99,6 @@ static void read_route(struct nlmsghdr *nh, int nll)
int i;
struct route_table {
int dst_len, iface, metric;
- char *iface_name;
__be32 dst, gw;
__be64 mac;
} route;
@@ -129,17 +113,7 @@ static void read_route(struct nlmsghdr *nh, int nll)
__be64 mac;
} direct_entry;
- if (nh->nlmsg_type == RTM_DELROUTE)
- printf("DELETING Route entry\n");
- else if (nh->nlmsg_type == RTM_GETROUTE)
- printf("READING Route entry\n");
- else if (nh->nlmsg_type == RTM_NEWROUTE)
- printf("NEW Route entry\n");
- else
- printf("%d\n", nh->nlmsg_type);
-
memset(&route, 0, sizeof(route));
- printf("Destination\t\tGateway\t\tGenmask\t\tMetric\t\tIface\n");
for (; NLMSG_OK(nh, nll); nh = NLMSG_NEXT(nh, nll)) {
rt_msg = (struct rtmsg *)NLMSG_DATA(nh);
rtm_family = rt_msg->rtm_family;
@@ -176,17 +150,9 @@ static void read_route(struct nlmsghdr *nh, int nll)
route.gw = atoi(gws);
route.iface = atoi(ifs);
route.metric = atoi(metrics);
- route.iface_name = alloca(sizeof(char *) * IFNAMSIZ);
- route.iface_name = if_indextoname(route.iface, route.iface_name);
- route.mac = getmac(route.iface_name);
- if (route.mac == -1) {
- int i = 0;
-
- for (i = 0; i < total_ifindex; i++)
- bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
- exit(0);
- }
- assert(bpf_map_update_elem(map_fd[4], &route.iface, &route.iface, 0) == 0);
+ assert(get_mac_addr(route.iface, &route.mac) == 0);
+ assert(bpf_map_update_elem(tx_port_map_fd,
+ &route.iface, &route.iface, 0) == 0);
if (rtm_family == AF_INET) {
struct trie_value {
__u8 prefix[4];
@@ -196,7 +162,7 @@ static void read_route(struct nlmsghdr *nh, int nll)
__be32 gw;
} *prefix_value;
- prefix_key = alloca(sizeof(*prefix_key) + 3);
+ prefix_key = alloca(sizeof(*prefix_key) + 4);
prefix_value = alloca(sizeof(*prefix_value));
prefix_key->prefixlen = 32;
@@ -207,25 +173,22 @@ static void read_route(struct nlmsghdr *nh, int nll)
direct_entry.arp.dst = 0;
if (route.dst_len == 32) {
if (nh->nlmsg_type == RTM_DELROUTE) {
- assert(bpf_map_delete_elem(map_fd[3], &route.dst) == 0);
+ assert(bpf_map_delete_elem(exact_match_map_fd,
+ &route.dst) == 0);
} else {
- if (bpf_map_lookup_elem(map_fd[2], &route.dst, &direct_entry.arp.mac) == 0)
+ if (bpf_map_lookup_elem(arp_table_map_fd,
+ &route.dst,
+ &direct_entry.arp.mac) == 0)
direct_entry.arp.dst = route.dst;
- assert(bpf_map_update_elem(map_fd[3], &route.dst, &direct_entry, 0) == 0);
+ assert(bpf_map_update_elem(exact_match_map_fd,
+ &route.dst,
+ &direct_entry, 0) == 0);
}
}
for (i = 0; i < 4; i++)
prefix_key->data[i] = (route.dst >> i * 8) & 0xff;
- printf("%3d.%d.%d.%d\t\t%3x\t\t%d\t\t%d\t\t%s\n",
- (int)prefix_key->data[0],
- (int)prefix_key->data[1],
- (int)prefix_key->data[2],
- (int)prefix_key->data[3],
- route.gw, route.dst_len,
- route.metric,
- route.iface_name);
- if (bpf_map_lookup_elem(map_fd[0], prefix_key,
+ if (bpf_map_lookup_elem(lpm_map_fd, prefix_key,
prefix_value) < 0) {
for (i = 0; i < 4; i++)
prefix_value->prefix[i] = prefix_key->data[i];
@@ -234,26 +197,19 @@ static void read_route(struct nlmsghdr *nh, int nll)
prefix_value->gw = route.gw;
prefix_value->metric = route.metric;
- assert(bpf_map_update_elem(map_fd[0],
+ assert(bpf_map_update_elem(lpm_map_fd,
prefix_key,
prefix_value, 0
) == 0);
} else {
if (nh->nlmsg_type == RTM_DELROUTE) {
- printf("deleting entry\n");
- printf("prefix key=%d.%d.%d.%d/%d",
- prefix_key->data[0],
- prefix_key->data[1],
- prefix_key->data[2],
- prefix_key->data[3],
- prefix_key->prefixlen);
- assert(bpf_map_delete_elem(map_fd[0],
+ assert(bpf_map_delete_elem(lpm_map_fd,
prefix_key
) == 0);
/* Rereading the route table to check if
* there is an entry with the same
* prefix but a different metric as the
- * deleted enty.
+ * deleted entry.
*/
get_route_table(AF_INET);
} else if (prefix_key->data[0] ==
@@ -275,8 +231,7 @@ static void read_route(struct nlmsghdr *nh, int nll)
prefix_value->ifindex = route.iface;
prefix_value->gw = route.gw;
prefix_value->metric = route.metric;
- assert(bpf_map_update_elem(
- map_fd[0],
+ assert(bpf_map_update_elem(lpm_map_fd,
prefix_key,
prefix_value,
0) == 0);
@@ -311,14 +266,14 @@ static int get_route_table(int rtm_family)
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock < 0) {
- printf("open netlink socket: %s\n", strerror(errno));
- return -1;
+ fprintf(stderr, "open netlink socket: %s\n", strerror(errno));
+ return -errno;
}
memset(&sa, 0, sizeof(sa));
sa.nl_family = AF_NETLINK;
if (bind(sock, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
- printf("bind to netlink: %s\n", strerror(errno));
- ret = -1;
+ fprintf(stderr, "bind netlink socket: %s\n", strerror(errno));
+ ret = -errno;
goto cleanup;
}
memset(&req, 0, sizeof(req));
@@ -337,15 +292,15 @@ static int get_route_table(int rtm_family)
msg.msg_iovlen = 1;
ret = sendmsg(sock, &msg, 0);
if (ret < 0) {
- printf("send to netlink: %s\n", strerror(errno));
- ret = -1;
+ fprintf(stderr, "send to netlink: %s\n", strerror(errno));
+ ret = -errno;
goto cleanup;
}
memset(buf, 0, sizeof(buf));
nll = recv_msg(sa, sock);
if (nll < 0) {
- printf("recv from netlink: %s\n", strerror(nll));
- ret = -1;
+ fprintf(stderr, "recv from netlink: %s\n", strerror(nll));
+ ret = nll;
goto cleanup;
}
nh = (struct nlmsghdr *)buf;
@@ -375,9 +330,6 @@ static void read_arp(struct nlmsghdr *nh, int nll)
__be64 mac;
} direct_entry;
- if (nh->nlmsg_type == RTM_GETNEIGH)
- printf("READING arp entry\n");
- printf("Address\tHwAddress\n");
for (; NLMSG_OK(nh, nll); nh = NLMSG_NEXT(nh, nll)) {
rt_msg = (struct ndmsg *)NLMSG_DATA(nh);
rt_attr = (struct rtattr *)RTM_RTA(rt_msg);
@@ -399,9 +351,10 @@ static void read_arp(struct nlmsghdr *nh, int nll)
}
arp_entry.dst = atoi(dsts);
arp_entry.mac = atol(mac);
- printf("%x\t\t%llx\n", arp_entry.dst, arp_entry.mac);
+
if (ndm_family == AF_INET) {
- if (bpf_map_lookup_elem(map_fd[3], &arp_entry.dst,
+ if (bpf_map_lookup_elem(exact_match_map_fd,
+ &arp_entry.dst,
&direct_entry) == 0) {
if (nh->nlmsg_type == RTM_DELNEIGH) {
direct_entry.arp.dst = 0;
@@ -410,16 +363,17 @@ static void read_arp(struct nlmsghdr *nh, int nll)
direct_entry.arp.dst = arp_entry.dst;
direct_entry.arp.mac = arp_entry.mac;
}
- assert(bpf_map_update_elem(map_fd[3],
+ assert(bpf_map_update_elem(exact_match_map_fd,
&arp_entry.dst,
&direct_entry, 0
) == 0);
memset(&direct_entry, 0, sizeof(direct_entry));
}
if (nh->nlmsg_type == RTM_DELNEIGH) {
- assert(bpf_map_delete_elem(map_fd[2], &arp_entry.dst) == 0);
+ assert(bpf_map_delete_elem(arp_table_map_fd,
+ &arp_entry.dst) == 0);
} else if (nh->nlmsg_type == RTM_NEWNEIGH) {
- assert(bpf_map_update_elem(map_fd[2],
+ assert(bpf_map_update_elem(arp_table_map_fd,
&arp_entry.dst,
&arp_entry.mac, 0
) == 0);
@@ -448,14 +402,14 @@ static int get_arp_table(int rtm_family)
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock < 0) {
- printf("open netlink socket: %s\n", strerror(errno));
- return -1;
+ fprintf(stderr, "open netlink socket: %s\n", strerror(errno));
+ return -errno;
}
memset(&sa, 0, sizeof(sa));
sa.nl_family = AF_NETLINK;
if (bind(sock, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
- printf("bind to netlink: %s\n", strerror(errno));
- ret = -1;
+ fprintf(stderr, "bind netlink socket: %s\n", strerror(errno));
+ ret = -errno;
goto cleanup;
}
memset(&req, 0, sizeof(req));
@@ -473,15 +427,15 @@ static int get_arp_table(int rtm_family)
msg.msg_iovlen = 1;
ret = sendmsg(sock, &msg, 0);
if (ret < 0) {
- printf("send to netlink: %s\n", strerror(errno));
- ret = -1;
+ fprintf(stderr, "send to netlink: %s\n", strerror(errno));
+ ret = -errno;
goto cleanup;
}
memset(buf, 0, sizeof(buf));
nll = recv_msg(sa, sock);
if (nll < 0) {
- printf("recv from netlink: %s\n", strerror(nll));
- ret = -1;
+ fprintf(stderr, "recv from netlink: %s\n", strerror(nll));
+ ret = nll;
goto cleanup;
}
nh = (struct nlmsghdr *)buf;
@@ -494,24 +448,17 @@ cleanup:
/* Function to keep track and update changes in route and arp table
* Give regular statistics of packets forwarded
*/
-static int monitor_route(void)
+static void *monitor_routes_thread(void *arg)
{
- unsigned int nr_cpus = bpf_num_possible_cpus();
- const unsigned int nr_keys = 256;
struct pollfd fds_route, fds_arp;
- __u64 prev[nr_keys][nr_cpus];
struct sockaddr_nl la, lr;
- __u64 values[nr_cpus];
+ int sock, sock_arp, nll;
struct nlmsghdr *nh;
- int nll, ret = 0;
- int interval = 5;
- __u32 key;
- int i;
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock < 0) {
- printf("open netlink socket: %s\n", strerror(errno));
- return -1;
+ fprintf(stderr, "open netlink socket: %s\n", strerror(errno));
+ return NULL;
}
fcntl(sock, F_SETFL, O_NONBLOCK);
@@ -519,17 +466,19 @@ static int monitor_route(void)
lr.nl_family = AF_NETLINK;
lr.nl_groups = RTMGRP_IPV6_ROUTE | RTMGRP_IPV4_ROUTE | RTMGRP_NOTIFY;
if (bind(sock, (struct sockaddr *)&lr, sizeof(lr)) < 0) {
- printf("bind to netlink: %s\n", strerror(errno));
- ret = -1;
- goto cleanup;
+ fprintf(stderr, "bind netlink socket: %s\n", strerror(errno));
+ close(sock);
+ return NULL;
}
+
fds_route.fd = sock;
fds_route.events = POLL_IN;
sock_arp = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock_arp < 0) {
- printf("open netlink socket: %s\n", strerror(errno));
- return -1;
+ fprintf(stderr, "open netlink socket: %s\n", strerror(errno));
+ close(sock);
+ return NULL;
}
fcntl(sock_arp, F_SETFL, O_NONBLOCK);
@@ -537,50 +486,44 @@ static int monitor_route(void)
la.nl_family = AF_NETLINK;
la.nl_groups = RTMGRP_NEIGH | RTMGRP_NOTIFY;
if (bind(sock_arp, (struct sockaddr *)&la, sizeof(la)) < 0) {
- printf("bind to netlink: %s\n", strerror(errno));
- ret = -1;
+ fprintf(stderr, "bind netlink socket: %s\n", strerror(errno));
goto cleanup;
}
+
fds_arp.fd = sock_arp;
fds_arp.events = POLL_IN;
- memset(prev, 0, sizeof(prev));
- do {
- signal(SIGINT, close_and_exit);
- signal(SIGTERM, close_and_exit);
+ /* dump route and arp tables */
+ if (get_arp_table(AF_INET) < 0) {
+ fprintf(stderr, "Failed reading arp table\n");
+ goto cleanup;
+ }
- sleep(interval);
- for (key = 0; key < nr_keys; key++) {
- __u64 sum = 0;
-
- assert(bpf_map_lookup_elem(map_fd[1], &key, values) == 0);
- for (i = 0; i < nr_cpus; i++)
- sum += (values[i] - prev[key][i]);
- if (sum)
- printf("proto %u: %10llu pkt/s\n",
- key, sum / interval);
- memcpy(prev[key], values, sizeof(values));
- }
+ if (get_route_table(AF_INET) < 0) {
+ fprintf(stderr, "Failed reading route table\n");
+ goto cleanup;
+ }
+ while (!routes_thread_exit) {
memset(buf, 0, sizeof(buf));
if (poll(&fds_route, 1, 3) == POLL_IN) {
nll = recv_msg(lr, sock);
if (nll < 0) {
- printf("recv from netlink: %s\n", strerror(nll));
- ret = -1;
+ fprintf(stderr, "recv from netlink: %s\n",
+ strerror(nll));
goto cleanup;
}
nh = (struct nlmsghdr *)buf;
- printf("Routing table updated.\n");
read_route(nh, nll);
}
+
memset(buf, 0, sizeof(buf));
if (poll(&fds_arp, 1, 3) == POLL_IN) {
nll = recv_msg(la, sock_arp);
if (nll < 0) {
- printf("recv from netlink: %s\n", strerror(nll));
- ret = -1;
+ fprintf(stderr, "recv from netlink: %s\n",
+ strerror(nll));
goto cleanup;
}
@@ -588,73 +531,169 @@ static int monitor_route(void)
read_arp(nh, nll);
}
- } while (1);
+ sleep(interval);
+ }
+
cleanup:
+ close(sock_arp);
close(sock);
- return ret;
+ return NULL;
}
-int main(int ac, char **argv)
+static void usage(char *argv[], const struct option *long_options,
+ const char *doc, int mask, bool error,
+ struct bpf_object *obj)
{
- char filename[256];
- char **ifname_list;
- int i = 1;
-
- snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
- if (ac < 2) {
- printf("usage: %s [-S] Interface name list\n", argv[0]);
- return 1;
- }
- if (!strcmp(argv[1], "-S")) {
- flags = XDP_FLAGS_SKB_MODE;
- total_ifindex = ac - 2;
- ifname_list = (argv + 2);
- } else {
- flags = 0;
- total_ifindex = ac - 1;
- ifname_list = (argv + 1);
- }
- if (load_bpf_file(filename)) {
- printf("%s", bpf_log_buf);
- return 1;
- }
- printf("\n**************loading bpf file*********************\n\n\n");
- if (!prog_fd[0]) {
- printf("load_bpf_file: %s\n", strerror(errno));
- return 1;
- }
- ifindex_list = (int *)malloc(total_ifindex * sizeof(int *));
- for (i = 0; i < total_ifindex; i++) {
- ifindex_list[i] = if_nametoindex(ifname_list[i]);
- if (!ifindex_list[i]) {
- printf("Couldn't translate interface name: %s",
- strerror(errno));
- return 1;
+ sample_usage(argv, long_options, doc, mask, error);
+}
+
+int main(int argc, char **argv)
+{
+ bool error = true, generic = false, force = false;
+ int opt, ret = EXIT_FAIL_BPF;
+ struct xdp_router_ipv4 *skel;
+ int i, total_ifindex = argc - 1;
+ char **ifname_list = argv + 1;
+ pthread_t routes_thread;
+ int longindex = 0;
+
+ if (libbpf_set_strict_mode(LIBBPF_STRICT_ALL) < 0) {
+ fprintf(stderr, "Failed to set libbpf strict mode: %s\n",
+ strerror(errno));
+ goto end;
+ }
+
+ skel = xdp_router_ipv4__open();
+ if (!skel) {
+ fprintf(stderr, "Failed to xdp_router_ipv4__open: %s\n",
+ strerror(errno));
+ goto end;
+ }
+
+ ret = sample_init_pre_load(skel);
+ if (ret < 0) {
+ fprintf(stderr, "Failed to sample_init_pre_load: %s\n",
+ strerror(-ret));
+ ret = EXIT_FAIL_BPF;
+ goto end_destroy;
+ }
+
+ ret = xdp_router_ipv4__load(skel);
+ if (ret < 0) {
+ fprintf(stderr, "Failed to xdp_router_ipv4__load: %s\n",
+ strerror(errno));
+ goto end_destroy;
+ }
+
+ ret = sample_init(skel, mask);
+ if (ret < 0) {
+ fprintf(stderr, "Failed to initialize sample: %s\n", strerror(-ret));
+ ret = EXIT_FAIL;
+ goto end_destroy;
+ }
+
+ while ((opt = getopt_long(argc, argv, "si:SFvh",
+ long_options, &longindex)) != -1) {
+ switch (opt) {
+ case 's':
+ mask |= SAMPLE_REDIRECT_MAP_CNT;
+ total_ifindex--;
+ ifname_list++;
+ break;
+ case 'i':
+ interval = strtoul(optarg, NULL, 0);
+ total_ifindex -= 2;
+ ifname_list += 2;
+ break;
+ case 'S':
+ generic = true;
+ total_ifindex--;
+ ifname_list++;
+ break;
+ case 'F':
+ force = true;
+ total_ifindex--;
+ ifname_list++;
+ break;
+ case 'v':
+ sample_switch_mode();
+ total_ifindex--;
+ ifname_list++;
+ break;
+ case 'h':
+ error = false;
+ default:
+ usage(argv, long_options, __doc__, mask, error, skel->obj);
+ goto end_destroy;
}
}
- for (i = 0; i < total_ifindex; i++) {
- if (bpf_set_link_xdp_fd(ifindex_list[i], prog_fd[0], flags) < 0) {
- printf("link set xdp fd failed\n");
- int recovery_index = i;
- for (i = 0; i < recovery_index; i++)
- bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
+ ret = EXIT_FAIL_OPTION;
+ if (optind == argc) {
+ usage(argv, long_options, __doc__, mask, true, skel->obj);
+ goto end_destroy;
+ }
+
+ lpm_map_fd = bpf_map__fd(skel->maps.lpm_map);
+ if (lpm_map_fd < 0) {
+ fprintf(stderr, "Failed loading lpm_map %s\n",
+ strerror(-lpm_map_fd));
+ goto end_destroy;
+ }
+ arp_table_map_fd = bpf_map__fd(skel->maps.arp_table);
+ if (arp_table_map_fd < 0) {
+ fprintf(stderr, "Failed loading arp_table_map_fd %s\n",
+ strerror(-arp_table_map_fd));
+ goto end_destroy;
+ }
+ exact_match_map_fd = bpf_map__fd(skel->maps.exact_match);
+ if (exact_match_map_fd < 0) {
+ fprintf(stderr, "Failed loading exact_match_map_fd %s\n",
+ strerror(-exact_match_map_fd));
+ goto end_destroy;
+ }
+ tx_port_map_fd = bpf_map__fd(skel->maps.tx_port);
+ if (tx_port_map_fd < 0) {
+ fprintf(stderr, "Failed loading tx_port_map_fd %s\n",
+ strerror(-tx_port_map_fd));
+ goto end_destroy;
+ }
+
+ ret = EXIT_FAIL_XDP;
+ for (i = 0; i < total_ifindex; i++) {
+ int index = if_nametoindex(ifname_list[i]);
- return 1;
+ if (!index) {
+ fprintf(stderr, "Interface %s not found %s\n",
+ ifname_list[i], strerror(-tx_port_map_fd));
+ goto end_destroy;
}
- printf("Attached to %d\n", ifindex_list[i]);
+ if (sample_install_xdp(skel->progs.xdp_router_ipv4_prog,
+ index, generic, force) < 0)
+ goto end_destroy;
}
- signal(SIGINT, int_exit);
- signal(SIGTERM, int_exit);
- printf("*******************ROUTE TABLE*************************\n\n\n");
- get_route_table(AF_INET);
- printf("*******************ARP TABLE***************************\n\n\n");
- get_arp_table(AF_INET);
- if (monitor_route() < 0) {
- printf("Error in receiving route update");
- return 1;
+ ret = pthread_create(&routes_thread, NULL, monitor_routes_thread, NULL);
+ if (ret) {
+ fprintf(stderr, "Failed creating routes_thread: %s\n", strerror(-ret));
+ ret = EXIT_FAIL;
+ goto end_destroy;
}
- return 0;
+ ret = sample_run(interval, NULL, NULL);
+ routes_thread_exit = true;
+
+ if (ret < 0) {
+ fprintf(stderr, "Failed during sample run: %s\n", strerror(-ret));
+ ret = EXIT_FAIL;
+ goto end_thread_wait;
+ }
+ ret = EXIT_OK;
+
+end_thread_wait:
+ pthread_join(routes_thread, NULL);
+end_destroy:
+ xdp_router_ipv4__destroy(skel);
+end:
+ sample_exit(ret);
}
generated by cgit (git 2.34.1) at 2025-12-24 19:55:48 +0000