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Make tcp/udp/icmp compute checksum safer for buffer-chain case

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Change-Id: I046e481a67fbeffdaa8504c8d77d232b986a61ee
Signed-off-by: John Lo <loj@cisco.com>
This commit is contained in:
John Lo
2019-04-09 10:23:56 -04:00
committed by Florin Coras
parent 5763e47b7d
commit 1cf0007f39
2 changed files with 2 additions and 2 deletions
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2
src/vnet/ip/ip4_forward.c
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@@ -1174,7 +1174,7 @@ ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
ASSERT (p0->flags & VLIB_BUFFER_NEXT_PRESENT);
p0 = vlib_get_buffer (vm, p0->next_buffer);
data_this_buffer = vlib_buffer_get_current (p0);
n_this_buffer = p0->current_length;
n_this_buffer = clib_min (p0->current_length, n_bytes_left);
}
sum16 = ~ip_csum_fold (sum0);

2
src/vnet/ip/ip6_forward.c
View File

@@ -1011,7 +1011,7 @@ ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
}
p0 = vlib_get_buffer (vm, p0->next_buffer);
data_this_buffer = vlib_buffer_get_current (p0);
n_this_buffer = p0->current_length;
n_this_buffer = clib_min (p0->current_length, n_bytes_left);
}
sum16 = ~ip_csum_fold (sum0);