/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Subject to the GPL, version 2. */ #include #include #include #include "str.h" size_t strlcpy(char *dest, const char *src, size_t size) { size_t ret = strlen(src); if (size) { size_t len = (ret >= size) ? size - 1 : ret; memcpy(dest, src, len); dest[len] = '\0'; } return ret; } static inline int vslprintf(char *dst, size_t size, const char *fmt, va_list ap) { int ret; ret = vsnprintf(dst, size, fmt, ap); dst[size - 1] = '\0'; return ret; } int slprintf(char *dst, size_t size, const char *fmt, ...) { int ret; va_list ap; va_start(ap, fmt); ret = vslprintf(dst, size, fmt, ap); va_end(ap); return ret; } int slprintf_nocheck(char *dst, size_t size, const char *fmt, ...) { int ret; va_list ap; va_start(ap, fmt); ret = vslprintf(dst, size, fmt, ap); va_end(ap); return ret; } noinline void *xmemset(void *s, int c, size_t n) { size_t i; uint8_t *ptr = s; for (i = 0; i < n; ++i) ptr[i] = (uint8_t) c; return ptr; } char *strtrim_right(char *p, char c) { char *end; size_t len; len = strlen(p); while (*p && len) { end = p + len - 1; if (c == *end) *end = 0; else break; len = strlen(p); } return p; } ion value='packet-rx-pump-back'>packet-rx-pump-back net-next plumbingsTobias Klauser
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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2016-09-30 11:11:07 +0200
committerSteffen Klassert <steffen.klassert@secunet.com>2016-10-11 10:46:44 +0200
commit7f92083eb58f85ea114d97f65fcbe22be5b0468d (patch)
tree9d56de8bf06978b7a201ada8b26ac6af59c5e696
parentd24cd733bae8fc6c121c437b3197ab7f3930ca66 (diff)
vti6: flush x-netns xfrm cache when vti interface is removed
This is the same fix than commit a5d0dc810abf ("vti: flush x-netns xfrm cache when vti interface is removed") This patch fixes a refcnt problem when a x-netns vti6 interface is removed: unregister_netdevice: waiting for vti6_test to become free. Usage count = 1 Here is a script to reproduce the problem: ip link set dev ntfp2 up ip addr add dev ntfp2 2001::1/64 ip link add vti6_test type vti6 local 2001::1 remote 2001::2 key 1 ip netns add secure ip link set vti6_test netns secure ip netns exec secure ip link set vti6_test up ip netns exec secure ip link s lo up ip netns exec secure ip addr add dev vti6_test 2003::1/64 ip -6 xfrm policy add dir out tmpl src 2001::1 dst 2001::2 proto esp \ mode tunnel mark 1 ip -6 xfrm policy add dir in tmpl src 2001::2 dst 2001::1 proto esp \ mode tunnel mark 1 ip xfrm state add src 2001::1 dst 2001::2 proto esp spi 1 mode tunnel \ enc des3_ede 0x112233445566778811223344556677881122334455667788 mark 1 ip xfrm state add src 2001::2 dst 2001::1 proto esp spi 1 mode tunnel \ enc des3_ede 0x112233445566778811223344556677881122334455667788 mark 1 ip netns exec secure ping6 -c 4 2003::2 ip netns del secure CC: Lance Richardson <lrichard@redhat.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Lance Richardson <lrichard@redhat.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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