diff options
| -rw-r--r-- | tools/testing/selftests/bpf/bpf_util.h | 19 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/test_l4lb.c | 11 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/test_pkt_access.c | 6 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/test_progs.c | 10 |
4 files changed, 31 insertions, 15 deletions
diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h index 84a5d1823f02..7de27966103d 100644 --- a/tools/testing/selftests/bpf/bpf_util.h +++ b/tools/testing/selftests/bpf/bpf_util.h @@ -6,6 +6,25 @@ #include <string.h> #include <errno.h> +#include <asm/byteorder.h> + +#if __BYTE_ORDER == __LITTLE_ENDIAN +# define __bpf_ntohs(x) __builtin_bswap16(x) +# define __bpf_htons(x) __builtin_bswap16(x) +#elif __BYTE_ORDER == __BIG_ENDIAN +# define __bpf_ntohs(x) (x) +# define __bpf_htons(x) (x) +#else +# error "Fix your __BYTE_ORDER?!" +#endif + +#define bpf_htons(x) \ + (__builtin_constant_p(x) ? \ + __constant_htons(x) : __bpf_htons(x)) +#define bpf_ntohs(x) \ + (__builtin_constant_p(x) ? \ + __constant_ntohs(x) : __bpf_ntohs(x)) + static inline unsigned int bpf_num_possible_cpus(void) { static const char *fcpu = "/sys/devices/system/cpu/possible"; diff --git a/tools/testing/selftests/bpf/test_l4lb.c b/tools/testing/selftests/bpf/test_l4lb.c index 368bfe8b9842..b68b21274bac 100644 --- a/tools/testing/selftests/bpf/test_l4lb.c +++ b/tools/testing/selftests/bpf/test_l4lb.c @@ -19,9 +19,8 @@ #include <linux/udp.h> #include "bpf_helpers.h" #include "test_iptunnel_common.h" +#include "bpf_util.h" -#define htons __builtin_bswap16 -#define ntohs __builtin_bswap16 int _version SEC("version") = 1; static inline __u32 rol32(__u32 word, unsigned int shift) @@ -355,7 +354,7 @@ static __always_inline int process_packet(void *data, __u64 off, void *data_end, iph_len = sizeof(struct ipv6hdr); protocol = ip6h->nexthdr; pckt.proto = protocol; - pkt_bytes = ntohs(ip6h->payload_len); + pkt_bytes = bpf_ntohs(ip6h->payload_len); off += iph_len; if (protocol == IPPROTO_FRAGMENT) { return TC_ACT_SHOT; @@ -377,7 +376,7 @@ static __always_inline int process_packet(void *data, __u64 off, void *data_end, protocol = iph->protocol; pckt.proto = protocol; - pkt_bytes = ntohs(iph->tot_len); + pkt_bytes = bpf_ntohs(iph->tot_len); off += IPV4_HDR_LEN_NO_OPT; if (iph->frag_off & PCKT_FRAGMENTED) @@ -464,9 +463,9 @@ int balancer_ingress(struct __sk_buff *ctx) if (data + nh_off > data_end) return TC_ACT_SHOT; eth_proto = eth->eth_proto; - if (eth_proto == htons(ETH_P_IP)) + if (eth_proto == bpf_htons(ETH_P_IP)) return process_packet(data, nh_off, data_end, false, ctx); - else if (eth_proto == htons(ETH_P_IPV6)) + else if (eth_proto == bpf_htons(ETH_P_IPV6)) return process_packet(data, nh_off, data_end, true, ctx); else return TC_ACT_SHOT; diff --git a/tools/testing/selftests/bpf/test_pkt_access.c b/tools/testing/selftests/bpf/test_pkt_access.c index fd1e0832d409..711300508ee0 100644 --- a/tools/testing/selftests/bpf/test_pkt_access.c +++ b/tools/testing/selftests/bpf/test_pkt_access.c @@ -14,8 +14,8 @@ #include <linux/tcp.h> #include <linux/pkt_cls.h> #include "bpf_helpers.h" +#include "bpf_util.h" -#define _htons __builtin_bswap16 #define barrier() __asm__ __volatile__("": : :"memory") int _version SEC("version") = 1; @@ -32,7 +32,7 @@ int process(struct __sk_buff *skb) if (eth + 1 > data_end) return TC_ACT_SHOT; - if (eth->h_proto == _htons(ETH_P_IP)) { + if (eth->h_proto == bpf_htons(ETH_P_IP)) { struct iphdr *iph = (struct iphdr *)(eth + 1); if (iph + 1 > data_end) @@ -40,7 +40,7 @@ int process(struct __sk_buff *skb) ihl_len = iph->ihl * 4; proto = iph->protocol; tcp = (struct tcphdr *)((void *)(iph) + ihl_len); - } else if (eth->h_proto == _htons(ETH_P_IPV6)) { + } else if (eth->h_proto == bpf_htons(ETH_P_IPV6)) { struct ipv6hdr *ip6h = (struct ipv6hdr *)(eth + 1); if (ip6h + 1 > data_end) diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 5275d4a1df24..7c2d899c8f43 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -30,8 +30,6 @@ typedef __u16 __sum16; #include "test_iptunnel_common.h" #include "bpf_util.h" -#define _htons __builtin_bswap16 - static int error_cnt, pass_cnt; #define MAGIC_BYTES 123 @@ -42,10 +40,10 @@ static struct { struct iphdr iph; struct tcphdr tcp; } __packed pkt_v4 = { - .eth.h_proto = _htons(ETH_P_IP), + .eth.h_proto = bpf_htons(ETH_P_IP), .iph.ihl = 5, .iph.protocol = 6, - .iph.tot_len = _htons(MAGIC_BYTES), + .iph.tot_len = bpf_htons(MAGIC_BYTES), .tcp.urg_ptr = 123, }; @@ -55,9 +53,9 @@ static struct { struct ipv6hdr iph; struct tcphdr tcp; } __packed pkt_v6 = { - .eth.h_proto = _htons(ETH_P_IPV6), + .eth.h_proto = bpf_htons(ETH_P_IPV6), .iph.nexthdr = 6, - .iph.payload_len = _htons(MAGIC_BYTES), + .iph.payload_len = bpf_htons(MAGIC_BYTES), .tcp.urg_ptr = 123, }; |