diff options
Diffstat (limited to 'lib/net.h')
| -rw-r--r-- | lib/net.h | 90 |
1 files changed, 81 insertions, 9 deletions
@@ -21,8 +21,9 @@ #define NET_ROA6 6 #define NET_FLOW4 7 #define NET_FLOW6 8 -#define NET_MPLS 9 -#define NET_MAX 10 +#define NET_IP6_SADR 9 +#define NET_MPLS 10 +#define NET_MAX 11 #define NB_IP4 (1 << NET_IP4) #define NB_IP6 (1 << NET_IP6) @@ -32,12 +33,13 @@ #define NB_ROA6 (1 << NET_ROA6) #define NB_FLOW4 (1 << NET_FLOW4) #define NB_FLOW6 (1 << NET_FLOW6) +#define NB_IP6_SADR (1 << NET_IP6_SADR) #define NB_MPLS (1 << NET_MPLS) #define NB_IP (NB_IP4 | NB_IP6) #define NB_VPN (NB_VPN4 | NB_VPN6) #define NB_FLOW (NB_FLOW4 | NB_FLOW6) -#define NB_DEST (NB_IP | NB_VPN | NB_MPLS) +#define NB_DEST (NB_IP | NB_IP6_SADR | NB_VPN | NB_MPLS) #define NB_ANY 0xffffffff @@ -121,6 +123,15 @@ typedef struct net_addr_mpls { u32 label; } net_addr_mpls; +typedef struct net_addr_ip6_sadr { + u8 type; + u8 dst_pxlen; + u16 length; + ip6_addr dst_prefix; + s32 src_pxlen; /* s32 to avoid padding */ + ip6_addr src_prefix; +} net_addr_ip6_sadr; + typedef union net_addr_union { net_addr n; net_addr_ip4 ip4; @@ -131,6 +142,7 @@ typedef union net_addr_union { net_addr_roa6 roa6; net_addr_flow4 flow4; net_addr_flow6 flow6; + net_addr_ip6_sadr ip6_sadr; net_addr_mpls mpls; } net_addr_union; @@ -167,6 +179,9 @@ extern const u16 net_max_text_length[]; #define NET_ADDR_FLOW6(prefix,pxlen,dlen) \ ((net_addr_flow6) { NET_FLOW6, pxlen, sizeof(net_addr_ip6) + dlen, prefix }) +#define NET_ADDR_IP6_SADR(dst_prefix,dst_pxlen,src_prefix,src_pxlen) \ + ((net_addr_ip6_sadr) { NET_IP6_SADR, dst_pxlen, sizeof(net_addr_ip6_sadr), dst_prefix, src_pxlen, src_prefix }) + #define NET_ADDR_MPLS(label) \ ((net_addr_mpls) { NET_MPLS, 20, sizeof(net_addr_mpls), label }) @@ -189,6 +204,9 @@ static inline void net_fill_roa4(net_addr *a, ip4_addr prefix, uint pxlen, uint static inline void net_fill_roa6(net_addr *a, ip6_addr prefix, uint pxlen, uint max_pxlen, u32 asn) { *(net_addr_roa6 *)a = NET_ADDR_ROA6(prefix, pxlen, max_pxlen, asn); } +static inline void net_fill_ip6_sadr(net_addr *a, ip6_addr dst_prefix, uint dst_pxlen, ip6_addr src_prefix, uint src_pxlen) +{ *(net_addr_ip6_sadr *)a = NET_ADDR_IP6_SADR(dst_prefix, dst_pxlen, src_prefix, src_pxlen); } + static inline void net_fill_mpls(net_addr *a, u32 label) { *(net_addr_mpls *)a = NET_ADDR_MPLS(label); } @@ -222,6 +240,16 @@ static inline void net_fill_flow6(net_addr *a, ip6_addr prefix, uint pxlen, byte memcpy(f->data, data, dlen); } +/* Make NET_IP6_SADR from NET_IP6, assuming there is enough space */ +static inline void net_make_ip6_sadr(net_addr *a) +{ + net_addr_ip6_sadr *n = (void *) a; + n->type = NET_IP6_SADR; + n->length = sizeof(net_addr_ip6_sadr); + n->src_pxlen = 0; + n->src_prefix = IP6_NONE; +} + static inline int net_val_match(u8 type, u32 mask) { return !!((1 << type) & mask); } @@ -261,6 +289,7 @@ static inline ip_addr net_prefix(const net_addr *a) case NET_VPN6: case NET_ROA6: case NET_FLOW6: + case NET_IP6_SADR: return ipa_from_ip6(net6_prefix(a)); case NET_MPLS: @@ -328,6 +357,9 @@ static inline int net_equal_flow4(const net_addr_flow4 *a, const net_addr_flow4 static inline int net_equal_flow6(const net_addr_flow6 *a, const net_addr_flow6 *b) { return net_equal((const net_addr *) a, (const net_addr *) b); } +static inline int net_equal_ip6_sadr(const net_addr_ip6_sadr *a, const net_addr_ip6_sadr *b) +{ return !memcmp(a, b, sizeof(net_addr_ip6_sadr)); } + static inline int net_equal_mpls(const net_addr_mpls *a, const net_addr_mpls *b) { return !memcmp(a, b, sizeof(net_addr_mpls)); } @@ -338,6 +370,12 @@ static inline int net_equal_prefix_roa4(const net_addr_roa4 *a, const net_addr_r static inline int net_equal_prefix_roa6(const net_addr_roa6 *a, const net_addr_roa6 *b) { return ip6_equal(a->prefix, b->prefix) && (a->pxlen == b->pxlen); } +static inline int net_equal_dst_ip6_sadr(const net_addr_ip6_sadr *a, const net_addr_ip6_sadr *b) +{ return ip6_equal(a->dst_prefix, b->dst_prefix) && (a->dst_pxlen == b->dst_pxlen); } + +static inline int net_equal_src_ip6_sadr(const net_addr_ip6_sadr *a, const net_addr_ip6_sadr *b) +{ return ip6_equal(a->src_prefix, b->src_prefix) && (a->src_pxlen == b->src_pxlen); } + static inline int net_zero_ip4(const net_addr_ip4 *a) { return !a->pxlen && ip4_zero(a->prefix); } @@ -391,6 +429,13 @@ static inline int net_compare_flow4(const net_addr_flow4 *a, const net_addr_flow static inline int net_compare_flow6(const net_addr_flow6 *a, const net_addr_flow6 *b) { return ip6_compare(a->prefix, b->prefix) ?: uint_cmp(a->pxlen, b->pxlen) ?: uint_cmp(a->length, b->length) ?: memcmp(a->data, b->data, a->length - sizeof(net_addr_flow6)); } +static inline int net_compare_ip6_sadr(const net_addr_ip6_sadr *a, const net_addr_ip6_sadr *b) +{ + return + ip6_compare(a->dst_prefix, b->dst_prefix) ?: uint_cmp(a->dst_pxlen, b->dst_pxlen) ?: + ip6_compare(a->src_prefix, b->src_prefix) ?: uint_cmp(a->src_pxlen, b->src_pxlen); +} + static inline int net_compare_mpls(const net_addr_mpls *a, const net_addr_mpls *b) { return uint_cmp(a->label, b->label); } @@ -424,6 +469,9 @@ static inline void net_copy_flow4(net_addr_flow4 *dst, const net_addr_flow4 *src static inline void net_copy_flow6(net_addr_flow6 *dst, const net_addr_flow6 *src) { memcpy(dst, src, src->length); } +static inline void net_copy_ip6_sadr(net_addr_ip6_sadr *dst, const net_addr_ip6_sadr *src) +{ memcpy(dst, src, sizeof(net_addr_ip6_sadr)); } + static inline void net_copy_mpls(net_addr_mpls *dst, const net_addr_mpls *src) { memcpy(dst, src, sizeof(net_addr_mpls)); } @@ -456,6 +504,9 @@ static inline u32 net_hash_flow4(const net_addr_flow4 *n) static inline u32 net_hash_flow6(const net_addr_flow6 *n) { return ip6_hash(n->prefix) ^ ((u32) n->pxlen << 26); } +static inline u32 net_hash_ip6_sadr(const net_addr_ip6_sadr *n) +{ return net_hash_ip6((net_addr_ip6 *) n); } + static inline u32 net_hash_mpls(const net_addr_mpls *n) { return n->label; } @@ -508,6 +559,9 @@ static inline int net_validate_flow6(const net_addr_flow6 *n) static inline int net_validate_mpls(const net_addr_mpls *n) { return n->label < (1 << 20); } +static inline int net_validate_ip6_sadr(const net_addr_ip6_sadr *n) +{ return net_validate_px6(n->dst_prefix, n->dst_pxlen) && net_validate_px6(n->src_prefix, n->src_pxlen); } + int net_validate(const net_addr *N); @@ -523,6 +577,12 @@ static inline void net_normalize_vpn4(net_addr_vpn4 *n) static inline void net_normalize_vpn6(net_addr_vpn6 *n) { net_normalize_ip6((net_addr_ip6 *) n); } +static inline void net_normalize_ip6_sadr(net_addr_ip6_sadr *n) +{ + n->dst_prefix = ip6_and(n->dst_prefix, ip6_mkmask(n->dst_pxlen)); + n->src_prefix = ip6_and(n->src_prefix, ip6_mkmask(n->src_pxlen)); +} + void net_normalize(net_addr *N); @@ -530,17 +590,29 @@ int net_classify(const net_addr *N); int net_format(const net_addr *N, char *buf, int buflen); int rd_format(const u64 rd, char *buf, int buflen); -static inline int ipa_in_net_ip4(ip4_addr a, const net_addr_ip4 *n) -{ return ip4_zero(ip4_and(ip4_xor(a, n->prefix), ip4_mkmask(n->pxlen))); } +static inline int ipa_in_px4(ip4_addr a, ip4_addr prefix, uint pxlen) +{ return ip4_zero(ip4_and(ip4_xor(a, prefix), ip4_mkmask(pxlen))); } -static inline int net_in_net_ip4(const net_addr_ip4 *a, const net_addr_ip4 *b) -{ return (a->pxlen >= b->pxlen) && ipa_in_net_ip4(a->prefix, b); } +static inline int ipa_in_px6(ip6_addr a, ip6_addr prefix, uint pxlen) +{ return ip6_zero(ip6_and(ip6_xor(a, prefix), ip6_mkmask(pxlen))); } + +static inline int ipa_in_net_ip4(ip4_addr a, const net_addr_ip4 *n) +{ return ipa_in_px4(a, n->prefix, n->pxlen); } static inline int ipa_in_net_ip6(ip6_addr a, const net_addr_ip6 *n) -{ return ip6_zero(ip6_and(ip6_xor(a, n->prefix), ip6_mkmask(n->pxlen))); } +{ return ipa_in_px6(a, n->prefix, n->pxlen); } + +static inline int net_in_net_ip4(const net_addr_ip4 *a, const net_addr_ip4 *b) +{ return (a->pxlen >= b->pxlen) && ipa_in_px4(a->prefix, b->prefix, b->pxlen); } static inline int net_in_net_ip6(const net_addr_ip6 *a, const net_addr_ip6 *b) -{ return (a->pxlen >= b->pxlen) && ipa_in_net_ip6(a->prefix, b); } +{ return (a->pxlen >= b->pxlen) && ipa_in_px6(a->prefix, b->prefix, b->pxlen); } + +static inline int net_in_net_dst_ip6_sadr(const net_addr_ip6_sadr *a, const net_addr_ip6_sadr *b) +{ return (a->dst_pxlen >= b->dst_pxlen) && ipa_in_px6(a->dst_prefix, b->dst_prefix, b->dst_pxlen); } + +static inline int net_in_net_src_ip6_sadr(const net_addr_ip6_sadr *a, const net_addr_ip6_sadr *b) +{ return (a->src_pxlen >= b->src_pxlen) && ipa_in_px6(a->src_prefix, b->src_prefix, b->src_pxlen); } int ipa_in_netX(const ip_addr A, const net_addr *N); int net_in_netX(const net_addr *A, const net_addr *N); |