diff options
Diffstat (limited to 'tcp.c')
| -rw-r--r-- | tcp.c | 16 |
1 files changed, 9 insertions, 7 deletions
@@ -924,7 +924,6 @@ static void tcp_fill_header(struct tcphdr *th, * tcp_fill_headers() - Fill 802.3, IP, TCP headers * @c: Execution context * @conn: Connection pointer - * @taph: tap backend specific header * @eh: Pointer to Ethernet header * @ip4h: Pointer to IPv4 header, or NULL * @ip6h: Pointer to IPv6 header, or NULL @@ -933,12 +932,15 @@ static void tcp_fill_header(struct tcphdr *th, * @ip4_check: IPv4 checksum, if already known * @seq: Sequence number for this segment * @no_tcp_csum: Do not set TCP checksum + * + * Return: frame length (including L2 headers) */ -void tcp_fill_headers(const struct ctx *c, struct tcp_tap_conn *conn, - struct tap_hdr *taph, struct ethhdr *eh, - struct iphdr *ip4h, struct ipv6hdr *ip6h, - struct tcphdr *th, struct iov_tail *payload, - const uint16_t *ip4_check, uint32_t seq, bool no_tcp_csum) +size_t tcp_fill_headers(const struct ctx *c, struct tcp_tap_conn *conn, + struct ethhdr *eh, + struct iphdr *ip4h, struct ipv6hdr *ip6h, + struct tcphdr *th, struct iov_tail *payload, + const uint16_t *ip4_check, uint32_t seq, + bool no_tcp_csum) { const struct flowside *tapside = TAPFLOW(conn); size_t l4len = iov_tail_size(payload) + sizeof(*th); @@ -1004,7 +1006,7 @@ void tcp_fill_headers(const struct ctx *c, struct tcp_tap_conn *conn, else tcp_update_csum(psum, th, payload); - tap_hdr_update(taph, MAX(l3len + sizeof(struct ethhdr), ETH_ZLEN)); + return MAX(l3len + sizeof(struct ethhdr), ETH_ZLEN); } /** |