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author | Laurent Bercot <ska-skaware@skarnet.org> | 2020-01-27 15:46:06 +0000 |
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committer | Laurent Bercot <ska-skaware@skarnet.org> | 2020-01-27 15:46:06 +0000 |
commit | b5eba018a0a948d7757448d4cd70fe33cb6b71a0 (patch) | |
tree | 7a00533384303e4802df1e935d50397decb9395b /src/caches/shibari_whitelist_add6.c | |
parent | 7e3beac8435b957a583559d13f7666631719d15f (diff) | |
download | s6-dns-b5eba018a0a948d7757448d4cd70fe33cb6b71a0.tar.xz |
Add shibari, prepare for 2.3.2.0dcache
Diffstat (limited to 'src/caches/shibari_whitelist_add6.c')
-rw-r--r-- | src/caches/shibari_whitelist_add6.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/caches/shibari_whitelist_add6.c b/src/caches/shibari_whitelist_add6.c new file mode 100644 index 0000000..0c9e53a --- /dev/null +++ b/src/caches/shibari_whitelist_add6.c @@ -0,0 +1,28 @@ +/* ISC license. */ + +#include <stdint.h> + +#include <skalibs/uint64.h> +#include <skalibs/genalloc.h> + +#include "shibari-internal.h" + +int shibari_whitelist_add6 (genalloc *g, char const *ip6, uint16_t mask) +{ + shibari_ip6_t shix ; + if (mask >= 64) + { + shix.mask0 = ~(uint64_t)0 ; + shix.mask1 = ((uint64_t)1 << (mask - 64)) - 1 ; + } + else + { + shix.mask0 = ((uint64_t)1 << mask) - 1 ; + shix.mask1 = 0 ; + } + uint64_unpack_big(ip6, &shix.addr0) ; + shix.addr0 &= shix.mask0 ; + uint64_unpack_big(ip6 + 8, &shix.addr1) ; + shix.addr1 &= shix.mask1 ; + return genalloc_append(shibari_ip6_t, g, &shix) ; +} |