diff options
Diffstat (limited to 'util.h')
| -rw-r--r-- | util.h | 26 |
1 files changed, 25 insertions, 1 deletions
@@ -9,6 +9,7 @@ #include <stdlib.h> #include <stdarg.h> #include <stdbool.h> +#include <stddef.h> #include <string.h> #include <signal.h> @@ -31,6 +32,9 @@ #ifndef ETH_MIN_MTU #define ETH_MIN_MTU 68 #endif +#ifndef IP_MAX_MTU +#define IP_MAX_MTU USHRT_MAX +#endif #ifndef MIN #define MIN(x, y) (((x) < (y)) ? (x) : (y)) @@ -90,6 +94,7 @@ #define PORT_IS_EPHEMERAL(port) ((port) >= PORT_EPHEMERAL_MIN) #define MAC_ZERO ((uint8_t [ETH_ALEN]){ 0 }) +#define MAC_LAA ((uint8_t [ETH_ALEN]){ BIT(1), 0, 0, 0, 0, 0 }) #define MAC_IS_ZERO(addr) (!memcmp((addr), MAC_ZERO, ETH_ALEN)) #ifndef __bswap_constant_16 @@ -116,7 +121,8 @@ int do_clone(int (*fn)(void *), char *stack_area, size_t stack_size, int flags, void *arg); #define NS_CALL(fn, arg) \ do { \ - char ns_fn_stack[NS_FN_STACK_SIZE]; \ + char ns_fn_stack[NS_FN_STACK_SIZE] \ + __attribute__ ((aligned(__alignof__(max_align_t)))); \ \ do_clone((fn), ns_fn_stack, sizeof(ns_fn_stack), \ CLONE_VM | CLONE_VFORK | CLONE_FILES | SIGCHLD,\ @@ -157,6 +163,24 @@ int write_file(const char *path, const char *buf); int write_remainder(int fd, const struct iovec *iov, int iovcnt, size_t skip); /** + * af_name() - Return name of an address family + * @af: Address/protocol family (AF_INET or AF_INET6) + * + * Returns: Name of the protocol family as a string + */ +static inline const char *af_name(sa_family_t af) +{ + switch (af) { + case AF_INET: + return "IPv4"; + case AF_INET6: + return "IPv6"; + default: + return "<unknown address family>"; + } +} + +/** * mod_sub() - Modular arithmetic subtraction * @a: Minued, unsigned value < @m * @b: Subtrahend, unsigned value < @m |