101 lines
2.1 KiB
C
101 lines
2.1 KiB
C
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#include "nest/bird.h"
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#include "lib/ip.h"
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#include "lib/net.h"
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const u16 net_addr_length[] = {
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[NET_IP4] = sizeof(net_addr_ip4),
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[NET_IP6] = sizeof(net_addr_ip6),
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[NET_VPN4] = sizeof(net_addr_vpn4),
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[NET_VPN6] = sizeof(net_addr_vpn6)
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};
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int
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net_format(const net_addr *N, char *buf, int buflen)
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{
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net_addr_union *n = (void *) N;
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/* FIXME: quick hack */
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switch (n->n.type)
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{
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case NET_IP4:
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return bsnprintf(buf, buflen, "%I/%d", n->ip4.prefix, n->ip4.pxlen);
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case NET_IP6:
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return bsnprintf(buf, buflen, "%I/%d", n->ip6.prefix, n->ip6.pxlen);
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case NET_VPN4:
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return bsnprintf(buf, buflen, "%u:%u %I/%d", (u32) (n->vpn4.rd >> 32), (u32) n->vpn4.rd, n->vpn4.prefix, n->vpn4.pxlen);
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case NET_VPN6:
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return bsnprintf(buf, buflen, "%u:%u %I/%d", (u32) (n->vpn6.rd >> 32), (u32) n->vpn6.rd, n->vpn6.prefix, n->vpn6.pxlen);
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}
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return 0;
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}
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ip_addr
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net_pxmask(const net_addr *a)
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{
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switch (a->type)
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{
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case NET_IP4:
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case NET_VPN4:
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return ipa_from_ip4(ip4_mkmask(net4_pxlen(a)));
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case NET_IP6:
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case NET_VPN6:
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return ipa_from_ip6(ip6_mkmask(net6_pxlen(a)));
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default:
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return IPA_NONE;
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}
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}
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static inline int net_validate_ip4(const net_addr_ip4 *n)
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{
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return (n->pxlen <= IP4_MAX_PREFIX_LENGTH) &&
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ip4_zero(ip4_and(n->prefix, ip4_not(ip4_mkmask(n->pxlen))));
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}
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static inline int net_validate_ip6(const net_addr_ip6 *n)
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{
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return (n->pxlen <= IP6_MAX_PREFIX_LENGTH) &&
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ip6_zero(ip6_and(n->prefix, ip6_not(ip6_mkmask(n->pxlen))));
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}
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int
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net_validate(const net_addr *N)
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{
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switch (a->type)
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{
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case NET_IP4:
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case NET_VPN4:
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return net_validate_ip4((net_addr_ip4 *) N);
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case NET_IP6:
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case NET_VPN6:
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return net_validate_ip6((net_addr_ip6 *) N);
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default:
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return 0;
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}
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}
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int
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net_classify(const net_addr *N)
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{
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net_addr_union *n = (void *) N;
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switch (n->n.type)
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{
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case NET_IP4:
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case NET_VPN4:
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return ip4_zero(n->ip4.prefix) ? (IADDR_HOST | SCOPE_UNIVERSE) : ip4_classify(n->ip4.prefix);
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case NET_IP6:
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case NET_VPN6:
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return ip6_zero(n->ip6.prefix) ? (IADDR_HOST | SCOPE_UNIVERSE) : ip6_classify(&n->ip6.prefix);
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}
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return 0;
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}
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