diff options
Diffstat (limited to 'lib/net.h')
| -rw-r--r-- | lib/net.h | 70 |
1 files changed, 64 insertions, 6 deletions
@@ -21,7 +21,8 @@ #define NET_ROA6 6 #define NET_FLOW4 7 #define NET_FLOW6 8 -#define NET_MAX 9 +#define NET_MPLS 9 +#define NET_MAX 10 #define NB_IP4 (1 << NET_IP4) #define NB_IP6 (1 << NET_IP6) @@ -31,6 +32,7 @@ #define NB_ROA6 (1 << NET_ROA6) #define NB_FLOW4 (1 << NET_FLOW4) #define NB_FLOW6 (1 << NET_FLOW6) +#define NB_MPLS (1 << NET_MPLS) #define NB_IP (NB_IP4 | NB_IP6) #define NB_ANY 0xffffffff @@ -108,6 +110,13 @@ typedef struct net_addr_flow6 { byte data[0]; } net_addr_flow6; +typedef struct net_addr_mpls { + u8 type; + u8 pxlen; + u16 length; + u32 label; +} net_addr_mpls; + typedef union net_addr_union { net_addr n; net_addr_ip4 ip4; @@ -118,6 +127,7 @@ typedef union net_addr_union { net_addr_roa6 roa6; net_addr_flow4 flow4; net_addr_flow6 flow6; + net_addr_mpls mpls; } net_addr_union; @@ -153,6 +163,8 @@ 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_MPLS(label) \ + ((net_addr_mpls) { NET_MPLS, 20, sizeof(net_addr_mpls), label }) static inline void net_fill_ip4(net_addr *a, ip4_addr prefix, uint pxlen) @@ -173,6 +185,9 @@ 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_mpls(net_addr *a, u32 label) +{ *(net_addr_mpls *)a = NET_ADDR_MPLS(label); } + static inline void net_fill_ipa(net_addr *a, ip_addr prefix, uint pxlen) { if (ipa_is_ip4(prefix)) @@ -215,6 +230,9 @@ static inline int net_is_ip(const net_addr *a) static inline int net_is_roa(const net_addr *a) { return (a->type == NET_ROA4) || (a->type == NET_ROA6); } +static inline int net_is_vpn(const net_addr *a) +{ return (a->type == NET_VPN4) || (a->type == NET_VPN6); } + static inline ip4_addr net4_prefix(const net_addr *a) { return ((net_addr_ip4 *) a)->prefix; } @@ -238,11 +256,20 @@ static inline ip_addr net_prefix(const net_addr *a) case NET_FLOW6: return ipa_from_ip6(net6_prefix(a)); + case NET_MPLS: default: return IPA_NONE; } } +static inline u32 net_mpls(const net_addr *a) +{ + if (a->type == NET_MPLS) + return ((net_addr_mpls *) a)->label; + + bug("Can't call net_mpls on non-mpls net_addr"); +} + static inline uint net4_pxlen(const net_addr *a) { return a->pxlen; } @@ -254,6 +281,18 @@ static inline uint net_pxlen(const net_addr *a) ip_addr net_pxmask(const net_addr *a); +static inline u64 net_rd(const net_addr *a) +{ + switch (a->type) + { + case NET_VPN4: + return ((net_addr_vpn4 *)a)->rd; + case NET_VPN6: + return ((net_addr_vpn6 *)a)->rd; + } + return 0; +} + static inline int net_equal(const net_addr *a, const net_addr *b) { return (a->length == b->length) && !memcmp(a, b, a->length); } @@ -282,6 +321,9 @@ 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_mpls(const net_addr_mpls *a, const net_addr_mpls *b) +{ return !memcmp(a, b, sizeof(net_addr_mpls)); } + static inline int net_equal_prefix_roa4(const net_addr_roa4 *a, const net_addr_roa4 *b) { return ip4_equal(a->prefix, b->prefix) && (a->pxlen == b->pxlen); } @@ -314,6 +356,8 @@ static inline int net_zero_flow4(const net_addr_flow4 *a) static inline int net_zero_flow6(const net_addr_flow6 *a) { return !a->pxlen && ip6_zero(a->prefix) && !a->data; } +static inline int net_zero_mpls(const net_addr_mpls *a) +{ return !a->label; } static inline int net_compare_ip4(const net_addr_ip4 *a, const net_addr_ip4 *b) @@ -340,6 +384,9 @@ 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_mpls(const net_addr_mpls *a, const net_addr_mpls *b) +{ return uint_cmp(a->label, b->label); } + int net_compare(const net_addr *a, const net_addr *b); @@ -370,6 +417,13 @@ 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_mpls(net_addr_mpls *dst, const net_addr_mpls *src) +{ memcpy(dst, src, sizeof(net_addr_mpls)); } + + +/* XXXX */ +static inline u32 u64_hash(u64 a) +{ return u32_hash(a); } static inline u32 net_hash_ip4(const net_addr_ip4 *n) { return ip4_hash(n->prefix) ^ ((u32) n->pxlen << 26); } @@ -377,10 +431,6 @@ static inline u32 net_hash_ip4(const net_addr_ip4 *n) static inline u32 net_hash_ip6(const net_addr_ip6 *n) { return ip6_hash(n->prefix) ^ ((u32) n->pxlen << 26); } -/* XXXX */ -static inline u32 u64_hash(u64 a) -{ return u32_hash(a); } - static inline u32 net_hash_vpn4(const net_addr_vpn4 *n) { return ip4_hash(n->prefix) ^ ((u32) n->pxlen << 26) ^ u64_hash(n->rd); } @@ -399,6 +449,9 @@ 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_mpls(const net_addr_mpls *n) +{ return n->label; } + u32 net_hash(const net_addr *a); @@ -414,6 +467,11 @@ static inline int net_validate_ip6(const net_addr_ip6 *n) ip6_zero(ip6_and(n->prefix, ip6_not(ip6_mkmask(n->pxlen)))); } +static inline int net_validate_mpls(const net_addr_mpls *n) +{ + return n->label < (1 << 20); +} + int net_validate(const net_addr *N); @@ -428,7 +486,7 @@ void net_normalize(net_addr *N); 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); int ipa_in_netX(const ip_addr A, const net_addr *N); int net_in_netX(const net_addr *A, const net_addr *N); |