diff options
Diffstat (limited to 'util.h')
| -rw-r--r-- | util.h | 25 |
1 files changed, 23 insertions, 2 deletions
@@ -29,24 +29,45 @@ void debug(const char *format, ...); #define MAX(x, y) (((x) > (y)) ? (x) : (y)) #endif +#define SWAP(a, b) \ + do { \ + typeof(a) __x = (a); (a) = (b); (b) = __x; \ + } while (0) \ + #define STRINGIFY(x) #x #define STR(x) STRINGIFY(x) +#define V4 0 +#define V6 1 +#define IP_VERSIONS 2 + #define ARRAY_SIZE(a) ((int)(sizeof(a) / sizeof((a)[0]))) #define IN_INTERVAL(a, b, x) ((x) >= (a) && (x) <= (b)) #define FD_PROTO(x, proto) \ (IN_INTERVAL(c->proto.fd_min, c->proto.fd_max, (x))) -#define PORT_IS_EPHEMERAL(port) ((port) >= (1 << 15) + (1 << 14)) /* RFC 6335 */ +#define PORT_EPHEMERAL_MIN ((1 << 15) + (1 << 14)) /* RFC 6335 */ +#define PORT_IS_EPHEMERAL(port) ((port) >= PORT_EPHEMERAL_MIN) + +#define NS_FN_STACK_SIZE (RLIMIT_STACK_VAL * 1024 / 4) #include <linux/ipv6.h> #include <net/if.h> #include <linux/ip.h> +#include <limits.h> + +struct ctx; uint16_t csum_fold(uint32_t sum); uint16_t csum_ip4(void *buf, size_t len); void csum_tcp4(struct iphdr *iph); char *ipv6_l4hdr(struct ipv6hdr *ip6h, uint8_t *proto); -int sock_l4(struct ctx *c, int af, uint16_t proto, uint16_t port); +int sock_l4(struct ctx *c, int af, uint8_t proto, uint16_t port, int lo, + uint32_t data); int timespec_diff_ms(struct timespec *a, struct timespec *b); +void bitmap_set(uint8_t *map, int bit); +void bitmap_clear(uint8_t *map, int bit); +int bitmap_isset(uint8_t *map, int bit); +void procfs_scan_listen(char *name, uint8_t *map); +int ns_enter(int target_pid); |