/* * netsniff-ng - the packet sniffing beast * Copyright 2012 Markus Amend , Deutsche Flugsicherung GmbH * Subject to the GPL, version 2. * * IPv6 Fragmentation Header described in RFC2460 */ #include #include #include /* for ntohs() */ #include "proto.h" #include "dissector_eth.h" #include "built_in.h" #include "pkt_buff.h" struct fragmhdr { uint8_t h_fragm_next_header; uint8_t h_fragm_reserved; uint16_t h_fragm_off_res_M; uint32_t h_fragm_identification; } __packed; static void fragm(struct pkt_buff *pkt) { uint16_t off_res_M; struct fragmhdr *fragm_ops; fragm_ops = (struct fragmhdr *) pkt_pull(pkt, sizeof(*fragm_ops)); if (fragm_ops == NULL) return; off_res_M = ntohs(fragm_ops->h_fragm_off_res_M); tprintf("\t [ Fragment "); tprintf("NextHdr (%u), ", fragm_ops->h_fragm_next_header); tprintf("Reserved (%u), ", fragm_ops->h_fragm_reserved); tprintf("Offset (%u), ", off_res_M >> 3); tprintf("Res (%u), ", (off_res_M >> 1) & 0x3); tprintf("M flag (%u), ", off_res_M & 0x1); tprintf("Identification (%u)", ntohl(fragm_ops->h_fragm_identification)); tprintf(" ]\n"); pkt_set_proto(pkt, ð_lay3, fragm_ops->h_fragm_next_header); } static void fragm_less(struct pkt_buff *pkt) { uint16_t off_res_M; struct fragmhdr *fragm_ops; fragm_ops = (struct fragmhdr *) pkt_pull(pkt, sizeof(*fragm_ops)); if (fragm_ops == NULL) return; off_res_M = ntohs(fragm_ops->h_fragm_off_res_M); tprintf(" FragmOffs %u", off_res_M >> 3); pkt_set_proto(pkt, ð_lay3, fragm_ops->h_fragm_next_header); } struct protocol ipv6_fragm_ops = { .key = 0x2C, .print_full = fragm, .print_less = fragm_less, }; ove&id=dfd74a1edfaba5864276a2859190a8d242d18952'>refslogtreecommitdiff
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authorRoss Lagerwall <ross.lagerwall@citrix.com>2016-03-17 16:52:00 +0000
committerDavid Vrabel <david.vrabel@citrix.com>2016-04-06 11:29:18 +0100
commitdfd74a1edfaba5864276a2859190a8d242d18952 (patch)
treee5c6287363a3b7e75b34c0b84e1ffa422894a0e2 /Documentation/.gitignore
parent60901df3aed230d4565dca003f11b6a95fbf30d9 (diff)
xen/balloon: Fix crash when ballooning on x86 32 bit PAE
Commit 55b3da98a40dbb3776f7454daf0d95dde25c33d2 (xen/balloon: find non-conflicting regions to place hotplugged memory) caused a regression in 4.4. When ballooning on an x86 32 bit PAE system with close to 64 GiB of memory, the address returned by allocate_resource may be above 64 GiB. When using CONFIG_SPARSEMEM, this setup is limited to using physical addresses < 64 GiB. When adding memory at this address, it runs off the end of the mem_section array and causes a crash. Instead, fail the ballooning request. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Cc: <stable@vger.kernel.org> # 4.4+ Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'Documentation/.gitignore')