diff options
Diffstat (limited to 'tap.c')
| -rw-r--r-- | tap.c | 26 |
1 files changed, 15 insertions, 11 deletions
@@ -66,7 +66,7 @@ static PACKET_POOL_NOINIT(pool_tap6, TAP_MSGS, pkt_buf); * * Return: return code from send() or write() */ -int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre) +int tap_send(const struct ctx *c, const void *data, size_t len, int vnet_pre) { if (vnet_pre) pcap((char *)data + 4, len); @@ -100,8 +100,8 @@ int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre) * @len: L4 payload length * @flow: Flow label for TCP over IPv6 */ -void tap_ip_send(struct ctx *c, struct in6_addr *src, uint8_t proto, - char *in, size_t len, uint32_t flow) +void tap_ip_send(const struct ctx *c, const struct in6_addr *src, uint8_t proto, + const char *in, size_t len, uint32_t flow) { char buf[USHRT_MAX]; char *pkt = buf + 4; @@ -258,9 +258,10 @@ static struct tap6_l4_t { * @seq6: Pointer to @struct tap_l4_seq6, can be NULL * @count: Count of packets in this sequence */ -static void tap_packet_debug(struct iphdr *iph, struct ipv6hdr *ip6h, - struct tap4_l4_t *seq4, uint8_t proto6, - struct tap6_l4_t *seq6, int count) +static void tap_packet_debug(const struct iphdr *iph, + const struct ipv6hdr *ip6h, + const struct tap4_l4_t *seq4, uint8_t proto6, + const struct tap6_l4_t *seq6, int count) { char buf6s[INET6_ADDRSTRLEN], buf6d[INET6_ADDRSTRLEN]; char buf4s[INET_ADDRSTRLEN], buf4d[INET_ADDRSTRLEN]; @@ -306,7 +307,8 @@ static void tap_packet_debug(struct iphdr *iph, struct ipv6hdr *ip6h, * * Return: count of packets consumed by handlers */ -static int tap4_handler(struct ctx *c, struct pool *in, struct timespec *now) +static int tap4_handler(struct ctx *c, const struct pool *in, + const struct timespec *now) { unsigned int i, j, seq_count; struct tap4_l4_t *seq; @@ -458,7 +460,8 @@ append: * * Return: count of packets consumed by handlers */ -static int tap6_handler(struct ctx *c, struct pool *in, struct timespec *now) +static int tap6_handler(struct ctx *c, const struct pool *in, + const struct timespec *now) { unsigned int i, j, seq_count = 0; struct tap6_l4_t *seq; @@ -618,7 +621,7 @@ append: * * Return: -ECONNRESET on receive error, 0 otherwise */ -static int tap_handler_passt(struct ctx *c, struct timespec *now) +static int tap_handler_passt(struct ctx *c, const struct timespec *now) { struct ethhdr *eh; ssize_t n, rem; @@ -706,7 +709,7 @@ next: * * Return: -ECONNRESET on receive error, 0 otherwise */ -static int tap_handler_pasta(struct ctx *c, struct timespec *now) +static int tap_handler_pasta(struct ctx *c, const struct timespec *now) { ssize_t n = 0, len; int ret; @@ -946,7 +949,8 @@ void tap_sock_init(struct ctx *c) * @events: epoll events * @now: Current timestamp, can be NULL on EPOLLERR */ -void tap_handler(struct ctx *c, int fd, uint32_t events, struct timespec *now) +void tap_handler(struct ctx *c, int fd, uint32_t events, + const struct timespec *now) { if (fd == c->fd_tap_listen && events == EPOLLIN) { tap_sock_unix_new(c); |