/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2012 Markus Amend <markus@netsniff-ng.org>, Deutsche Flugsicherung GmbH
 * Subject to the GPL, version 2.
 *
 * Encapsulating Security Payload described in RFC4303
 */

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>    /* for ntohs() */

#include "proto.h"
#include "protos.h"
#include "built_in.h"
#include "pkt_buff.h"

struct esp_hdr {
	uint32_t h_spi;
	uint32_t h_sn;
} __packed;

static void esp(struct pkt_buff *pkt)
{
	struct esp_hdr *esp_ops;

	esp_ops = (struct esp_hdr *) pkt_pull(pkt, sizeof(*esp_ops));
	if (esp_ops == NULL)
		return;

	tprintf(" [ ESP ");
	tprintf("SPI (0x%x), ", ntohl(esp_ops->h_spi));
	tprintf("SN (0x%x)", ntohl(esp_ops->h_sn));
	tprintf(" ]\n");
}

static void esp_less(struct pkt_buff *pkt)
{
	struct esp_hdr *esp_ops;

	esp_ops = (struct esp_hdr *) pkt_pull(pkt, sizeof(*esp_ops));
	if (esp_ops == NULL)
		return;

	tprintf(" ESP");
}

struct protocol ip_esp_ops = {
	.key = 0x32,
	.print_full = esp,
	.print_less = esp_less,
};
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:16:23 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 14:16:23 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/lib/symbol?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>396bf4cd835e62d70fad4a03a8963e61f19021f2</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/lib/symbol?id=396bf4cd835e62d70fad4a03a8963e61f19021f2'>patch</a>)</td></tr>
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<div class='commit-subject'>Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6</div><div class='commit-msg'>Pull crypto fixes from Herbert Xu:

 - use-after-free in algif_aead

 - modular aesni regression when pcbc is modular but absent

 - bug causing IO page faults in ccp

 - double list add in ccp

 - NULL pointer dereference in qat (two patches)

 - panic in chcr

 - NULL pointer dereference in chcr

 - out-of-bound access in chcr

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: chcr - Fix key length for RFC4106
  crypto: algif_aead - Fix kernel panic on list_del
  crypto: aesni - Fix failure when pcbc module is absent
  crypto: ccp - Fix double add when creating new DMA command
  crypto: ccp - Fix DMA operations when IOMMU is enabled
  crypto: chcr - Check device is allocated before use
  crypto: chcr - Fix panic on dma_unmap_sg
  crypto: qat - zero esram only for DH85x devices
  crypto: qat - fix bar discovery for c62x
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