diff options
Diffstat (limited to 'samples')
34 files changed, 399 insertions, 486 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 38638845db9d..8fff5ad3444b 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -96,7 +96,6 @@ test_cgrp2_sock2-objs := test_cgrp2_sock2.o xdp1-objs := xdp1_user.o # reuse xdp1 source intentionally xdp2-objs := xdp1_user.o -xdp_router_ipv4-objs := xdp_router_ipv4_user.o test_current_task_under_cgroup-objs := $(CGROUP_HELPERS) \ test_current_task_under_cgroup_user.o trace_event-objs := trace_event_user.o $(TRACE_HELPERS) @@ -124,6 +123,7 @@ xdp_redirect_cpu-objs := xdp_redirect_cpu_user.o $(XDP_SAMPLE) xdp_redirect_map-objs := xdp_redirect_map_user.o $(XDP_SAMPLE) xdp_redirect-objs := xdp_redirect_user.o $(XDP_SAMPLE) xdp_monitor-objs := xdp_monitor_user.o $(XDP_SAMPLE) +xdp_router_ipv4-objs := xdp_router_ipv4_user.o $(XDP_SAMPLE) # Tell kbuild to always build the programs always-y := $(tprogs-y) @@ -153,7 +153,6 @@ always-y += parse_varlen.o parse_simple.o parse_ldabs.o always-y += test_cgrp2_tc_kern.o always-y += xdp1_kern.o always-y += xdp2_kern.o -always-y += xdp_router_ipv4_kern.o always-y += test_current_task_under_cgroup_kern.o always-y += trace_event_kern.o always-y += sampleip_kern.o @@ -220,6 +219,7 @@ TPROGLDLIBS_xdp_redirect += -lm TPROGLDLIBS_xdp_redirect_cpu += -lm TPROGLDLIBS_xdp_redirect_map += -lm TPROGLDLIBS_xdp_redirect_map_multi += -lm +TPROGLDLIBS_xdp_router_ipv4 += -lm -pthread TPROGLDLIBS_tracex4 += -lrt TPROGLDLIBS_trace_output += -lrt TPROGLDLIBS_map_perf_test += -lrt @@ -342,6 +342,7 @@ $(obj)/xdp_redirect_map_multi_user.o: $(obj)/xdp_redirect_map_multi.skel.h $(obj)/xdp_redirect_map_user.o: $(obj)/xdp_redirect_map.skel.h $(obj)/xdp_redirect_user.o: $(obj)/xdp_redirect.skel.h $(obj)/xdp_monitor_user.o: $(obj)/xdp_monitor.skel.h +$(obj)/xdp_router_ipv4_user.o: $(obj)/xdp_router_ipv4.skel.h $(obj)/tracex5_kern.o: $(obj)/syscall_nrs.h $(obj)/hbm_out_kern.o: $(src)/hbm.h $(src)/hbm_kern.h @@ -399,6 +400,7 @@ $(obj)/xdp_redirect_map_multi.bpf.o: $(obj)/xdp_sample.bpf.o $(obj)/xdp_redirect_map.bpf.o: $(obj)/xdp_sample.bpf.o $(obj)/xdp_redirect.bpf.o: $(obj)/xdp_sample.bpf.o $(obj)/xdp_monitor.bpf.o: $(obj)/xdp_sample.bpf.o +$(obj)/xdp_router_ipv4.bpf.o: $(obj)/xdp_sample.bpf.o $(obj)/%.bpf.o: $(src)/%.bpf.c $(obj)/vmlinux.h $(src)/xdp_sample.bpf.h $(src)/xdp_sample_shared.h @echo " CLANG-BPF " $@ @@ -409,7 +411,8 @@ $(obj)/%.bpf.o: $(src)/%.bpf.c $(obj)/vmlinux.h $(src)/xdp_sample.bpf.h $(src)/x -c $(filter %.bpf.c,$^) -o $@ LINKED_SKELS := xdp_redirect_cpu.skel.h xdp_redirect_map_multi.skel.h \ - xdp_redirect_map.skel.h xdp_redirect.skel.h xdp_monitor.skel.h + xdp_redirect_map.skel.h xdp_redirect.skel.h xdp_monitor.skel.h \ + xdp_router_ipv4.skel.h clean-files += $(LINKED_SKELS) xdp_redirect_cpu.skel.h-deps := xdp_redirect_cpu.bpf.o xdp_sample.bpf.o @@ -417,6 +420,7 @@ xdp_redirect_map_multi.skel.h-deps := xdp_redirect_map_multi.bpf.o xdp_sample.bp xdp_redirect_map.skel.h-deps := xdp_redirect_map.bpf.o xdp_sample.bpf.o xdp_redirect.skel.h-deps := xdp_redirect.bpf.o xdp_sample.bpf.o xdp_monitor.skel.h-deps := xdp_monitor.bpf.o xdp_sample.bpf.o +xdp_router_ipv4.skel.h-deps := xdp_router_ipv4.bpf.o xdp_sample.bpf.o LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.bpf.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps))) diff --git a/samples/bpf/cpustat_user.c b/samples/bpf/cpustat_user.c index 96675985e9e0..ab90bb08a2b4 100644 --- a/samples/bpf/cpustat_user.c +++ b/samples/bpf/cpustat_user.c @@ -13,7 +13,6 @@ #include <sys/types.h> #include <sys/stat.h> #include <sys/time.h> -#include <sys/resource.h> #include <sys/wait.h> #include <bpf/bpf.h> diff --git a/samples/bpf/hbm.c b/samples/bpf/hbm.c index 1fe5bcafb3bc..516fbac28b71 100644 --- a/samples/bpf/hbm.c +++ b/samples/bpf/hbm.c @@ -34,7 +34,6 @@ #include <stdio.h> #include <stdlib.h> #include <assert.h> -#include <sys/resource.h> #include <sys/time.h> #include <unistd.h> #include <errno.h> @@ -46,7 +45,6 @@ #include <bpf/bpf.h> #include <getopt.h> -#include "bpf_rlimit.h" #include "cgroup_helpers.h" #include "hbm.h" #include "bpf_util.h" @@ -510,5 +508,8 @@ int main(int argc, char **argv) prog = argv[optind]; printf("HBM prog: %s\n", prog != NULL ? prog : "NULL"); + /* Use libbpf 1.0 API mode */ + libbpf_set_strict_mode(LIBBPF_STRICT_ALL); + return run_bpf_prog(prog, cg_id); } diff --git a/samples/bpf/ibumad_user.c b/samples/bpf/ibumad_user.c index 0746ca516097..d074c978aac7 100644 --- a/samples/bpf/ibumad_user.c +++ b/samples/bpf/ibumad_user.c @@ -19,7 +19,6 @@ #include <sys/types.h> #include <limits.h> -#include <sys/resource.h> #include <getopt.h> #include <net/if.h> diff --git a/samples/bpf/map_perf_test_user.c b/samples/bpf/map_perf_test_user.c index e69651a6902f..b6fc174ab1f2 100644 --- a/samples/bpf/map_perf_test_user.c +++ b/samples/bpf/map_perf_test_user.c @@ -13,7 +13,6 @@ #include <signal.h> #include <string.h> #include <time.h> -#include <sys/resource.h> #include <arpa/inet.h> #include <errno.h> diff --git a/samples/bpf/offwaketime_user.c b/samples/bpf/offwaketime_user.c index 73a986876c1a..b6eedcb98fb9 100644 --- a/samples/bpf/offwaketime_user.c +++ b/samples/bpf/offwaketime_user.c @@ -8,7 +8,6 @@ #include <linux/perf_event.h> #include <errno.h> #include <stdbool.h> -#include <sys/resource.h> #include <bpf/libbpf.h> #include <bpf/bpf.h> #include "trace_helpers.h" diff --git a/samples/bpf/sockex2_user.c b/samples/bpf/sockex2_user.c index 6a3fd369d3fc..2c18471336f0 100644 --- a/samples/bpf/sockex2_user.c +++ b/samples/bpf/sockex2_user.c @@ -7,7 +7,6 @@ #include "sock_example.h" #include <unistd.h> #include <arpa/inet.h> -#include <sys/resource.h> struct pair { __u64 packets; diff --git a/samples/bpf/sockex3_user.c b/samples/bpf/sockex3_user.c index 6ae99ecc766c..cd6fa79df900 100644 --- a/samples/bpf/sockex3_user.c +++ b/samples/bpf/sockex3_user.c @@ -6,7 +6,6 @@ #include "sock_example.h" #include <unistd.h> #include <arpa/inet.h> -#include <sys/resource.h> struct flow_key_record { __be32 src; diff --git a/samples/bpf/spintest_user.c b/samples/bpf/spintest_user.c index 0d7e1e5a8658..aadac14f748a 100644 --- a/samples/bpf/spintest_user.c +++ b/samples/bpf/spintest_user.c @@ -3,7 +3,6 @@ #include <unistd.h> #include <string.h> #include <assert.h> -#include <sys/resource.h> #include <bpf/libbpf.h> #include <bpf/bpf.h> #include "trace_helpers.h" diff --git a/samples/bpf/syscall_tp_user.c b/samples/bpf/syscall_tp_user.c index a0ebf1833ed3..7a788bb837fc 100644 --- a/samples/bpf/syscall_tp_user.c +++ b/samples/bpf/syscall_tp_user.c @@ -8,7 +8,6 @@ #include <string.h> #include <linux/perf_event.h> #include <errno.h> -#include <sys/resource.h> #include <bpf/libbpf.h> #include <bpf/bpf.h> @@ -36,6 +35,9 @@ static void verify_map(int map_id) fprintf(stderr, "failed: map #%d returns value 0\n", map_id); return; } + + printf("verify map:%d val: %d\n", map_id, val); + val = 0; if (bpf_map_update_elem(map_id, &key, &val, BPF_ANY) != 0) { fprintf(stderr, "map_update failed: %s\n", strerror(errno)); diff --git a/samples/bpf/task_fd_query_user.c b/samples/bpf/task_fd_query_user.c index c9a0ca8351fd..424718c0872c 100644 --- a/samples/bpf/task_fd_query_user.c +++ b/samples/bpf/task_fd_query_user.c @@ -10,7 +10,6 @@ #include <fcntl.h> #include <linux/bpf.h> #include <sys/ioctl.h> -#include <sys/resource.h> #include <sys/types.h> #include <sys/stat.h> #include <linux/perf_event.h> diff --git a/samples/bpf/test_lru_dist.c b/samples/bpf/test_lru_dist.c index 75e877853596..be98ccb4952f 100644 --- a/samples/bpf/test_lru_dist.c +++ b/samples/bpf/test_lru_dist.c @@ -13,7 +13,6 @@ #include <sched.h> #include <sys/wait.h> #include <sys/stat.h> -#include <sys/resource.h> #include <fcntl.h> #include <stdlib.h> #include <time.h> diff --git a/samples/bpf/test_map_in_map_user.c b/samples/bpf/test_map_in_map_user.c index 472d65c70354..e8b4cc184ac9 100644 --- a/samples/bpf/test_map_in_map_user.c +++ b/samples/bpf/test_map_in_map_user.c @@ -2,7 +2,6 @@ /* * Copyright (c) 2017 Facebook */ -#include <sys/resource.h> #include <sys/socket.h> #include <arpa/inet.h> #include <stdint.h> diff --git a/samples/bpf/test_overhead_user.c b/samples/bpf/test_overhead_user.c index 4821f9d99c1f..88717f8ec6ac 100644 --- a/samples/bpf/test_overhead_user.c +++ b/samples/bpf/test_overhead_user.c @@ -16,7 +16,6 @@ #include <linux/bpf.h> #include <string.h> #include <time.h> -#include <sys/resource.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> diff --git a/samples/bpf/tracex2_user.c b/samples/bpf/tracex2_user.c index 1626d51dfffd..dd6205c6b6a7 100644 --- a/samples/bpf/tracex2_user.c +++ b/samples/bpf/tracex2_user.c @@ -4,7 +4,6 @@ #include <stdlib.h> #include <signal.h> #include <string.h> -#include <sys/resource.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> diff --git a/samples/bpf/tracex3_user.c b/samples/bpf/tracex3_user.c index 33e16ba39f25..d5eebace31e6 100644 --- a/samples/bpf/tracex3_user.c +++ b/samples/bpf/tracex3_user.c @@ -7,7 +7,6 @@ #include <unistd.h> #include <stdbool.h> #include <string.h> -#include <sys/resource.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> diff --git a/samples/bpf/tracex4_user.c b/samples/bpf/tracex4_user.c index 566e6440e8c2..227b05a0bc88 100644 --- a/samples/bpf/tracex4_user.c +++ b/samples/bpf/tracex4_user.c @@ -8,7 +8,6 @@ #include <stdbool.h> #include <string.h> #include <time.h> -#include <sys/resource.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> diff --git a/samples/bpf/tracex5_user.c b/samples/bpf/tracex5_user.c index 08dfdc77ad2a..e910dc265c31 100644 --- a/samples/bpf/tracex5_user.c +++ b/samples/bpf/tracex5_user.c @@ -7,7 +7,6 @@ #include <sys/prctl.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> -#include <sys/resource.h> #include "trace_helpers.h" #ifdef __mips__ diff --git a/samples/bpf/tracex6_user.c b/samples/bpf/tracex6_user.c index 28296f40c133..8e83bf2a84a4 100644 --- a/samples/bpf/tracex6_user.c +++ b/samples/bpf/tracex6_user.c @@ -8,7 +8,6 @@ #include <stdio.h> #include <stdlib.h> #include <sys/ioctl.h> -#include <sys/resource.h> #include <sys/time.h> #include <sys/types.h> #include <sys/wait.h> diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c index 631f0cabe139..ac370e638fa3 100644 --- a/samples/bpf/xdp1_user.c +++ b/samples/bpf/xdp1_user.c @@ -11,7 +11,6 @@ #include <string.h> #include <unistd.h> #include <libgen.h> -#include <sys/resource.h> #include <net/if.h> #include "bpf_util.h" @@ -161,7 +160,7 @@ int main(int argc, char **argv) } prog_id = info.id; - poll_stats(map_fd, 2); + poll_stats(map_fd, 1); return 0; } diff --git a/samples/bpf/xdp_adjust_tail_user.c b/samples/bpf/xdp_adjust_tail_user.c index b3f6e49676ed..167646077c8f 100644 --- a/samples/bpf/xdp_adjust_tail_user.c +++ b/samples/bpf/xdp_adjust_tail_user.c @@ -14,7 +14,6 @@ #include <stdlib.h> #include <string.h> #include <net/if.h> -#include <sys/resource.h> #include <arpa/inet.h> #include <netinet/ether.h> #include <unistd.h> diff --git a/samples/bpf/xdp_monitor_user.c b/samples/bpf/xdp_monitor_user.c index fb9391a5ec62..58015eb2ffae 100644 --- a/samples/bpf/xdp_monitor_user.c +++ b/samples/bpf/xdp_monitor_user.c @@ -17,7 +17,6 @@ static const char *__doc_err_only__= #include <ctype.h> #include <unistd.h> #include <locale.h> -#include <sys/resource.h> #include <getopt.h> #include <net/if.h> #include <time.h> diff --git a/samples/bpf/xdp_redirect_cpu_user.c b/samples/bpf/xdp_redirect_cpu_user.c index 5f74a70a9021..a12381c37d2b 100644 --- a/samples/bpf/xdp_redirect_cpu_user.c +++ b/samples/bpf/xdp_redirect_cpu_user.c @@ -21,7 +21,6 @@ static const char *__doc__ = #include <string.h> #include <unistd.h> #include <locale.h> -#include <sys/resource.h> #include <sys/sysinfo.h> #include <getopt.h> #include <net/if.h> diff --git a/samples/bpf/xdp_redirect_map_multi_user.c b/samples/bpf/xdp_redirect_map_multi_user.c index 315314716121..9e24f2705b67 100644 --- a/samples/bpf/xdp_redirect_map_multi_user.c +++ b/samples/bpf/xdp_redirect_map_multi_user.c @@ -15,7 +15,6 @@ static const char *__doc__ = #include <net/if.h> #include <unistd.h> #include <libgen.h> -#include <sys/resource.h> #include <sys/ioctl.h> #include <sys/types.h> #include <sys/socket.h> diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c index 7af5b07a7523..8663dd631b6e 100644 --- a/samples/bpf/xdp_redirect_user.c +++ b/samples/bpf/xdp_redirect_user.c @@ -18,7 +18,6 @@ static const char *__doc__ = #include <unistd.h> #include <libgen.h> #include <getopt.h> -#include <sys/resource.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> #include "bpf_util.h" diff --git a/samples/bpf/xdp_router_ipv4.bpf.c b/samples/bpf/xdp_router_ipv4.bpf.c new file mode 100644 index 000000000000..248119ca7938 --- /dev/null +++ b/samples/bpf/xdp_router_ipv4.bpf.c @@ -0,0 +1,180 @@ +/* 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 "vmlinux.h" +#include "xdp_sample.bpf.h" +#include "xdp_sample_shared.h" + +#define ETH_ALEN 6 +#define ETH_P_8021Q 0x8100 +#define ETH_P_8021AD 0x88A8 + +struct trie_value { + __u8 prefix[4]; + __be64 value; + int ifindex; + int metric; + __be32 gw; +}; + +/* Key for lpm_trie */ +union key_4 { + u32 b32[2]; + u8 b8[8]; +}; + +struct arp_entry { + __be64 mac; + __be32 dst; +}; + +struct direct_map { + struct arp_entry arp; + int ifindex; + __be64 mac; +}; + +/* Map for trie implementation */ +struct { + __uint(type, BPF_MAP_TYPE_LPM_TRIE); + __uint(key_size, 8); + __uint(value_size, sizeof(struct trie_value)); + __uint(max_entries, 50); + __uint(map_flags, BPF_F_NO_PREALLOC); +} lpm_map SEC(".maps"); + +/* Map for ARP table */ +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, __be32); + __type(value, __be64); + __uint(max_entries, 50); +} arp_table SEC(".maps"); + +/* Map to keep the exact match entries in the route table */ +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, __be32); + __type(value, struct direct_map); + __uint(max_entries, 50); +} exact_match SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_DEVMAP); + __uint(key_size, sizeof(int)); + __uint(value_size, sizeof(int)); + __uint(max_entries, 100); +} tx_port SEC(".maps"); + +SEC("xdp") +int xdp_router_ipv4_prog(struct xdp_md *ctx) +{ + void *data_end = (void *)(long)ctx->data_end; + void *data = (void *)(long)ctx->data; + struct ethhdr *eth = data; + u64 nh_off = sizeof(*eth); + struct datarec *rec; + __be16 h_proto; + u32 key = 0; + + rec = bpf_map_lookup_elem(&rx_cnt, &key); + if (rec) + NO_TEAR_INC(rec->processed); + + if (data + nh_off > data_end) + goto drop; + + h_proto = eth->h_proto; + if (h_proto == bpf_htons(ETH_P_8021Q) || + h_proto == bpf_htons(ETH_P_8021AD)) { + struct vlan_hdr *vhdr; + + vhdr = data + nh_off; + nh_off += sizeof(struct vlan_hdr); + if (data + nh_off > data_end) + goto drop; + + h_proto = vhdr->h_vlan_encapsulated_proto; + } + + switch (bpf_ntohs(h_proto)) { + case ETH_P_ARP: + if (rec) + NO_TEAR_INC(rec->xdp_pass); + return XDP_PASS; + case ETH_P_IP: { + struct iphdr *iph = data + nh_off; + struct direct_map *direct_entry; + __be64 *dest_mac, *src_mac; + int forward_to; + + if (iph + 1 > data_end) + goto drop; + + direct_entry = bpf_map_lookup_elem(&exact_match, &iph->daddr); + + /* Check for exact match, this would give a faster lookup */ + if (direct_entry && direct_entry->mac && + direct_entry->arp.mac) { + src_mac = &direct_entry->mac; + dest_mac = &direct_entry->arp.mac; + forward_to = direct_entry->ifindex; + } else { + struct trie_value *prefix_value; + union key_4 key4; + + /* Look up in the trie for lpm */ + key4.b32[0] = 32; + key4.b8[4] = iph->daddr & 0xff; + key4.b8[5] = (iph->daddr >> 8) & 0xff; + key4.b8[6] = (iph->daddr >> 16) & 0xff; + key4.b8[7] = (iph->daddr >> 24) & 0xff; + + prefix_value = bpf_map_lookup_elem(&lpm_map, &key4); + if (!prefix_value) + goto drop; + + forward_to = prefix_value->ifindex; + src_mac = &prefix_value->value; + if (!src_mac) + goto drop; + + dest_mac = bpf_map_lookup_elem(&arp_table, &iph->daddr); + if (!dest_mac) { + if (!prefix_value->gw) + goto drop; + + dest_mac = bpf_map_lookup_elem(&arp_table, + &prefix_value->gw); + } + } + + if (src_mac && dest_mac) { + int ret; + + __builtin_memcpy(eth->h_dest, dest_mac, ETH_ALEN); + __builtin_memcpy(eth->h_source, src_mac, ETH_ALEN); + + ret = bpf_redirect_map(&tx_port, forward_to, 0); + if (ret == XDP_REDIRECT) { + if (rec) + NO_TEAR_INC(rec->xdp_redirect); + return ret; + } + } + } + default: + break; + } +drop: + if (rec) + NO_TEAR_INC(rec->xdp_drop); + + return XDP_DROP; +} + +char _license[] SEC("license") = "GPL"; diff --git a/samples/bpf/xdp_router_ipv4_kern.c b/samples/bpf/xdp_router_ipv4_kern.c deleted file mode 100644 index b37ca2b13063..000000000000 --- a/samples/bpf/xdp_router_ipv4_kern.c +++ /dev/null @@ -1,186 +0,0 @@ -/* 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. - */ -#define KBUILD_MODNAME "foo" -#include <uapi/linux/bpf.h> -#include <linux/in.h> -#include <linux/if_ether.h> -#include <linux/if_packet.h> -#include <linux/if_vlan.h> -#include <linux/ip.h> -#include <linux/ipv6.h> -#include <bpf/bpf_helpers.h> -#include <linux/slab.h> -#include <net/ip_fib.h> - -struct trie_value { - __u8 prefix[4]; - __be64 value; - int ifindex; - int metric; - __be32 gw; -}; - -/* Key for lpm_trie*/ -union key_4 { - u32 b32[2]; - u8 b8[8]; -}; - -struct arp_entry { - __be64 mac; - __be32 dst; -}; - -struct direct_map { - struct arp_entry arp; - int ifindex; - __be64 mac; -}; - -/* Map for trie implementation*/ -struct { - __uint(type, BPF_MAP_TYPE_LPM_TRIE); - __uint(key_size, 8); - __uint(value_size, sizeof(struct trie_value)); - __uint(max_entries, 50); - __uint(map_flags, BPF_F_NO_PREALLOC); -} lpm_map SEC(".maps"); - -/* Map for counter*/ -struct { - __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); - __type(key, u32); - __type(value, u64); - __uint(max_entries, 256); -} rxcnt SEC(".maps"); - -/* Map for ARP table*/ -struct { - __uint(type, BPF_MAP_TYPE_HASH); - __type(key, __be32); - __type(value, __be64); - __uint(max_entries, 50); -} arp_table SEC(".maps"); - -/* Map to keep the exact match entries in the route table*/ -struct { - __uint(type, BPF_MAP_TYPE_HASH); - __type(key, __be32); - __type(value, struct direct_map); - __uint(max_entries, 50); -} exact_match SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_DEVMAP); - __uint(key_size, sizeof(int)); - __uint(value_size, sizeof(int)); - __uint(max_entries, 100); -} tx_port SEC(".maps"); - -/* Function to set source and destination mac of the packet */ -static inline void set_src_dst_mac(void *data, void *src, void *dst) -{ - unsigned short *source = src; - unsigned short *dest = dst; - unsigned short *p = data; - - __builtin_memcpy(p, dest, 6); - __builtin_memcpy(p + 3, source, 6); -} - -/* Parse IPV4 packet to get SRC, DST IP and protocol */ -static inline int parse_ipv4(void *data, u64 nh_off, void *data_end, - __be32 *src, __be32 *dest) -{ - struct iphdr *iph = data + nh_off; - - if (iph + 1 > data_end) - return 0; - *src = iph->saddr; - *dest = iph->daddr; - return iph->protocol; -} - -SEC("xdp_router_ipv4") -int xdp_router_ipv4_prog(struct xdp_md *ctx) -{ - void *data_end = (void *)(long)ctx->data_end; - __be64 *dest_mac = NULL, *src_mac = NULL; - void *data = (void *)(long)ctx->data; - struct trie_value *prefix_value; - int rc = XDP_DROP, forward_to; - struct ethhdr *eth = data; - union key_4 key4; - long *value; - u16 h_proto; - u32 ipproto; - u64 nh_off; - - nh_off = sizeof(*eth); - if (data + nh_off > data_end) - return rc; - - h_proto = eth->h_proto; - - if (h_proto == htons(ETH_P_8021Q) || h_proto == htons(ETH_P_8021AD)) { - struct vlan_hdr *vhdr; - - vhdr = data + nh_off; - nh_off += sizeof(struct vlan_hdr); - if (data + nh_off > data_end) - return rc; - h_proto = vhdr->h_vlan_encapsulated_proto; - } - if (h_proto == htons(ETH_P_ARP)) { - return XDP_PASS; - } else if (h_proto == htons(ETH_P_IP)) { - struct direct_map *direct_entry; - __be32 src_ip = 0, dest_ip = 0; - - ipproto = parse_ipv4(data, nh_off, data_end, &src_ip, &dest_ip); - direct_entry = bpf_map_lookup_elem(&exact_match, &dest_ip); - /* Check for exact match, this would give a faster lookup*/ - if (direct_entry && direct_entry->mac && direct_entry->arp.mac) { - src_mac = &direct_entry->mac; - dest_mac = &direct_entry->arp.mac; - forward_to = direct_entry->ifindex; - } else { - /* Look up in the trie for lpm*/ - key4.b32[0] = 32; - key4.b8[4] = dest_ip & 0xff; - key4.b8[5] = (dest_ip >> 8) & 0xff; - key4.b8[6] = (dest_ip >> 16) & 0xff; - key4.b8[7] = (dest_ip >> 24) & 0xff; - prefix_value = bpf_map_lookup_elem(&lpm_map, &key4); - if (!prefix_value) - return XDP_DROP; - src_mac = &prefix_value->value; - if (!src_mac) - return XDP_DROP; - dest_mac = bpf_map_lookup_elem(&arp_table, &dest_ip); - if (!dest_mac) { - if (!prefix_value->gw) - return XDP_DROP; - dest_ip = prefix_value->gw; - dest_mac = bpf_map_lookup_elem(&arp_table, &dest_ip); - } - forward_to = prefix_value->ifindex; - } - } else { - ipproto = 0; - } - if (src_mac && dest_mac) { - set_src_dst_mac(data, src_mac, dest_mac); - value = bpf_map_lookup_elem(&rxcnt, &ipproto); - if (value) - *value += 1; - return bpf_redirect_map(&tx_port, forward_to, 0); - } - return rc; -} - -char _license[] SEC("license") = "GPL"; diff --git a/samples/bpf/xdp_router_ipv4_user.c b/samples/bpf/xdp_router_ipv4_user.c index 6dae87d83e1c..294fc15ad1cb 100644 --- a/samples/bpf/xdp_router_ipv4_user.c +++ b/samples/bpf/xdp_router_ipv4_user.c @@ -22,72 +22,41 @@ #include <sys/syscall.h> #include "bpf_util.h" #include <bpf/libbpf.h> -#include <sys/resource.h> #include <libgen.h> +#include <getopt.h> +#include <pthread.h> +#include "xdp_sample_user.h" +#include "xdp_router_ipv4.skel.h" -int sock, sock_arp, flags = XDP_FLAGS_UPDATE_IF_NOEXIST; -static int total_ifindex; -static int *ifindex_list; -static __u32 *prog_id_list; -char buf[8192]; +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 rxcnt_map_fd; static int arp_table_map_fd; static int exact_match_map_fd; static int tx_port_map_fd; -static int get_route_table(int rtm_family); -static void int_exit(int sig) -{ - __u32 prog_id = 0; - int i = 0; +static bool routes_thread_exit; +static int interval = 5; - for (i = 0; i < total_ifindex; i++) { - if (bpf_xdp_query_id(ifindex_list[i], flags, &prog_id)) { - printf("bpf_xdp_query_id on iface %d failed\n", - ifindex_list[i]); - exit(1); - } - if (prog_id_list[i] == prog_id) - bpf_xdp_detach(ifindex_list[i], flags, NULL); - else if (!prog_id) - printf("couldn't find a prog id on iface %d\n", - ifindex_list[i]); - else - printf("program on iface %d changed, not removing\n", - ifindex_list[i]); - prog_id = 0; - } - exit(0); -} +static int mask = SAMPLE_RX_CNT | SAMPLE_REDIRECT_ERR_MAP_CNT | + SAMPLE_DEVMAP_XMIT_CNT_MULTI | SAMPLE_EXCEPTION_CNT; -static void close_and_exit(int sig) -{ - close(sock); - close(sock_arp); +DEFINE_SAMPLE_INIT(xdp_router_ipv4); - int_exit(0); -} +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' }, + {} +}; -/* 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 get_route_table(int rtm_family); static int recv_msg(struct sockaddr_nl sock_addr, int sock) { @@ -130,7 +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; @@ -145,17 +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 Gateway Genmask Metric Iface\n"); for (; NLMSG_OK(nh, nll); nh = NLMSG_NEXT(nh, nll)) { rt_msg = (struct rtmsg *)NLMSG_DATA(nh); rtm_family = rt_msg->rtm_family; @@ -192,11 +150,7 @@ 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_exit(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) { @@ -207,7 +161,6 @@ static void read_route(struct nlmsghdr *nh, int nll) int metric; __be32 gw; } *prefix_value; - struct in_addr dst_addr, gw_addr, mask_addr; prefix_key = alloca(sizeof(*prefix_key) + 3); prefix_value = alloca(sizeof(*prefix_value)); @@ -235,17 +188,6 @@ static void read_route(struct nlmsghdr *nh, int nll) for (i = 0; i < 4; i++) prefix_key->data[i] = (route.dst >> i * 8) & 0xff; - dst_addr.s_addr = route.dst; - printf("%-16s", inet_ntoa(dst_addr)); - - gw_addr.s_addr = route.gw; - printf("%-16s", inet_ntoa(gw_addr)); - - mask_addr.s_addr = htonl(~(0xffffffffU >> route.dst_len)); - printf("%-16s%-7d%s\n", inet_ntoa(mask_addr), - route.metric, - route.iface_name); - if (bpf_map_lookup_elem(lpm_map_fd, prefix_key, prefix_value) < 0) { for (i = 0; i < 4; i++) @@ -261,13 +203,6 @@ static void read_route(struct nlmsghdr *nh, int nll) ) == 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(lpm_map_fd, prefix_key ) == 0); @@ -331,14 +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)); @@ -357,15 +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; @@ -395,14 +330,7 @@ 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 HwAddress\n"); for (; NLMSG_OK(nh, nll); nh = NLMSG_NEXT(nh, nll)) { - struct in_addr dst_addr; - char mac_str[18]; - int len = 0, i; - rt_msg = (struct ndmsg *)NLMSG_DATA(nh); rt_attr = (struct rtattr *)RTM_RTA(rt_msg); ndm_family = rt_msg->ndm_family; @@ -424,13 +352,6 @@ static void read_arp(struct nlmsghdr *nh, int nll) arp_entry.dst = atoi(dsts); arp_entry.mac = atol(mac); - dst_addr.s_addr = arp_entry.dst; - for (i = 0; i < 6; i++) - len += snprintf(mac_str + len, 18 - len, "%02llx%s", - ((arp_entry.mac >> i * 8) & 0xff), - i < 5 ? ":" : ""); - printf("%-16s%s\n", inet_ntoa(dst_addr), mac_str); - if (ndm_family == AF_INET) { if (bpf_map_lookup_elem(exact_match_map_fd, &arp_entry.dst, @@ -481,14 +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)); @@ -506,15 +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; @@ -527,24 +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); @@ -552,17 +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); @@ -570,51 +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(rxcnt_map_fd, - &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; } @@ -622,132 +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; } -static void usage(const char *prog) +static void usage(char *argv[], const struct option *long_options, + const char *doc, int mask, bool error, + struct bpf_object *obj) { - fprintf(stderr, - "%s: %s [OPTS] interface name list\n\n" - "OPTS:\n" - " -S use skb-mode\n" - " -F force loading prog\n", - __func__, prog); + sample_usage(argv, long_options, doc, mask, error); } -int main(int ac, char **argv) +int main(int argc, char **argv) { - struct bpf_prog_info info = {}; - __u32 info_len = sizeof(info); - const char *optstr = "SF"; - struct bpf_program *prog; - struct bpf_object *obj; - char filename[256]; - char **ifname_list; - int prog_fd, opt; - int err, i = 1; - - snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); - - total_ifindex = ac - 1; - ifname_list = (argv + 1); - - while ((opt = getopt(ac, argv, optstr)) != -1) { + 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': - flags |= XDP_FLAGS_SKB_MODE; + generic = true; total_ifindex--; ifname_list++; break; case 'F': - flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST; + force = true; total_ifindex--; ifname_list++; break; + case 'v': + sample_switch_mode(); + total_ifindex--; + ifname_list++; + break; + case 'h': + error = false; default: - usage(basename(argv[0])); - return 1; + usage(argv, long_options, __doc__, mask, error, skel->obj); + goto end_destroy; } } - if (!(flags & XDP_FLAGS_SKB_MODE)) - flags |= XDP_FLAGS_DRV_MODE; - - if (optind == ac) { - usage(basename(argv[0])); - return 1; + ret = EXIT_FAIL_OPTION; + if (optind == argc) { + usage(argv, long_options, __doc__, mask, true, skel->obj); + goto end_destroy; } - obj = bpf_object__open_file(filename, NULL); - if (libbpf_get_error(obj)) - return 1; - - prog = bpf_object__next_program(obj, NULL); - bpf_program__set_type(prog, BPF_PROG_TYPE_XDP); - - printf("\n******************loading bpf file*********************\n"); - err = bpf_object__load(obj); - if (err) { - printf("bpf_object__load(): %s\n", strerror(errno)); - return 1; + 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; } - prog_fd = bpf_program__fd(prog); - - lpm_map_fd = bpf_object__find_map_fd_by_name(obj, "lpm_map"); - rxcnt_map_fd = bpf_object__find_map_fd_by_name(obj, "rxcnt"); - arp_table_map_fd = bpf_object__find_map_fd_by_name(obj, "arp_table"); - exact_match_map_fd = bpf_object__find_map_fd_by_name(obj, - "exact_match"); - tx_port_map_fd = bpf_object__find_map_fd_by_name(obj, "tx_port"); - if (lpm_map_fd < 0 || rxcnt_map_fd < 0 || arp_table_map_fd < 0 || - exact_match_map_fd < 0 || tx_port_map_fd < 0) { - printf("bpf_object__find_map_fd_by_name failed\n"); - return 1; + 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; } - - ifindex_list = (int *)calloc(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; - } + 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; } - prog_id_list = (__u32 *)calloc(total_ifindex, sizeof(__u32 *)); - for (i = 0; i < total_ifindex; i++) { - if (bpf_xdp_attach(ifindex_list[i], prog_fd, flags, NULL) < 0) { - printf("link set xdp fd failed\n"); - int recovery_index = i; - for (i = 0; i < recovery_index; i++) - bpf_xdp_detach(ifindex_list[i], flags, NULL); + 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; } - err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); - if (err) { - printf("can't get prog info - %s\n", strerror(errno)); - return err; - } - prog_id_list[i] = info.id; - memset(&info, 0, sizeof(info)); - 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("\n*******************ROUTE TABLE*************************\n"); - get_route_table(AF_INET); - printf("\n*******************ARP TABLE***************************\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); } diff --git a/samples/bpf/xdp_rxq_info_user.c b/samples/bpf/xdp_rxq_info_user.c index f2d90cba5164..05a24a712d7d 100644 --- a/samples/bpf/xdp_rxq_info_user.c +++ b/samples/bpf/xdp_rxq_info_user.c @@ -14,7 +14,6 @@ static const char *__doc__ = " XDP RX-queue info extract example\n\n" #include <string.h> #include <unistd.h> #include <locale.h> -#include <sys/resource.h> #include <getopt.h> #include <net/if.h> #include <time.h> diff --git a/samples/bpf/xdp_sample_pkts_user.c b/samples/bpf/xdp_sample_pkts_user.c index 0a2b3e997aed..7df7163239ac 100644 --- a/samples/bpf/xdp_sample_pkts_user.c +++ b/samples/bpf/xdp_sample_pkts_user.c @@ -12,7 +12,6 @@ #include <signal.h> #include <bpf/libbpf.h> #include <bpf/bpf.h> -#include <sys/resource.h> #include <libgen.h> #include <linux/if_link.h> diff --git a/samples/bpf/xdp_sample_user.c b/samples/bpf/xdp_sample_user.c index c4332d068b91..158682852162 100644 --- a/samples/bpf/xdp_sample_user.c +++ b/samples/bpf/xdp_sample_user.c @@ -25,7 +25,6 @@ #include <string.h> #include <sys/ioctl.h> #include <sys/mman.h> -#include <sys/resource.h> #include <sys/signalfd.h> #include <sys/sysinfo.h> #include <sys/timerfd.h> diff --git a/samples/bpf/xdp_tx_iptunnel_user.c b/samples/bpf/xdp_tx_iptunnel_user.c index 2e811e4331cc..307baef6861a 100644 --- a/samples/bpf/xdp_tx_iptunnel_user.c +++ b/samples/bpf/xdp_tx_iptunnel_user.c @@ -10,7 +10,6 @@ #include <stdlib.h> #include <string.h> #include <net/if.h> -#include <sys/resource.h> #include <arpa/inet.h> #include <netinet/ether.h> #include <unistd.h> diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 6f3fe30ad283..be7d2572e3e6 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -25,7 +25,6 @@ #include <string.h> #include <sys/capability.h> #include <sys/mman.h> -#include <sys/resource.h> #include <sys/socket.h> #include <sys/types.h> #include <sys/un.h> @@ -1886,7 +1885,6 @@ int main(int argc, char **argv) { struct __user_cap_header_struct hdr = { _LINUX_CAPABILITY_VERSION_3, 0 }; struct __user_cap_data_struct data[2] = { { 0 } }; - struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; bool rx = false, tx = false; struct sched_param schparam; struct xsk_umem_info *umem; @@ -1917,11 +1915,8 @@ int main(int argc, char **argv) data[1].effective, data[1].inheritable, data[1].permitted); } } else { - if (setrlimit(RLIMIT_MEMLOCK, &r)) { - fprintf(stderr, "ERROR: setrlimit(RLIMIT_MEMLOCK) \"%s\"\n", - strerror(errno)); - exit(EXIT_FAILURE); - } + /* Use libbpf 1.0 API mode */ + libbpf_set_strict_mode(LIBBPF_STRICT_ALL); if (opt_num_xsks > 1) load_xdp_program(argv, &obj); diff --git a/samples/bpf/xsk_fwd.c b/samples/bpf/xsk_fwd.c index 2220509588a0..2324e18ccc7e 100644 --- a/samples/bpf/xsk_fwd.c +++ b/samples/bpf/xsk_fwd.c @@ -10,7 +10,6 @@ #include <stdlib.h> #include <string.h> #include <sys/mman.h> -#include <sys/resource.h> #include <sys/socket.h> #include <sys/types.h> #include <time.h> @@ -131,7 +130,6 @@ static struct bpool * bpool_init(struct bpool_params *params, struct xsk_umem_config *umem_cfg) { - struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; u64 n_slabs, n_slabs_reserved, n_buffers, n_buffers_reserved; u64 slabs_size, slabs_reserved_size; u64 buffers_size, buffers_reserved_size; @@ -140,9 +138,8 @@ bpool_init(struct bpool_params *params, u8 *p; int status; - /* mmap prep. */ - if (setrlimit(RLIMIT_MEMLOCK, &r)) - return NULL; + /* Use libbpf 1.0 API mode */ + libbpf_set_strict_mode(LIBBPF_STRICT_ALL); /* bpool internals dimensioning. */ n_slabs = (params->n_buffers + params->n_buffers_per_slab - 1) / |