diff options
Diffstat (limited to 'udp_internal.h')
| -rw-r--r-- | udp_internal.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/udp_internal.h b/udp_internal.h new file mode 100644 index 0000000..cc80e30 --- /dev/null +++ b/udp_internal.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright (c) 2021 Red Hat GmbH + * Author: Stefano Brivio <sbrivio@redhat.com> + */ + +#ifndef UDP_INTERNAL_H +#define UDP_INTERNAL_H + +#include "tap.h" /* needed by udp_meta_t */ + +#define UDP_MAX_FRAMES 32 /* max # of frames to receive at once */ + +/** + * struct udp_payload_t - UDP header and data for inbound messages + * @uh: UDP header + * @data: UDP data + */ +struct udp_payload_t { + struct udphdr uh; + char data[USHRT_MAX - sizeof(struct udphdr)]; +#ifdef __AVX2__ +} __attribute__ ((packed, aligned(32))); +#else +} __attribute__ ((packed, aligned(__alignof__(unsigned int)))); +#endif + +size_t udp_update_hdr4(struct iphdr *ip4h, struct udp_payload_t *bp, + const struct flowside *toside, size_t dlen, + bool no_udp_csum); +size_t udp_update_hdr6(struct ipv6hdr *ip6h, struct udp_payload_t *bp, + const struct flowside *toside, size_t dlen, + bool no_udp_csum); +int udp_sock_errs(const struct ctx *c, int s, uint32_t events); +#endif /* UDP_INTERNAL_H */ |