summaryrefslogtreecommitdiff
path: root/lib/prefix.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/prefix.h')
-rw-r--r--lib/prefix.h309
1 files changed, 149 insertions, 160 deletions
diff --git a/lib/prefix.h b/lib/prefix.h
index 549798e92e..ce13dcfa0a 100644
--- a/lib/prefix.h
+++ b/lib/prefix.h
@@ -23,13 +23,13 @@
#define _ZEBRA_PREFIX_H
#ifdef SUNOS_5
-# include <sys/ethernet.h>
+#include <sys/ethernet.h>
#else
-# ifdef GNU_LINUX
-# include <net/ethernet.h>
-# else
-# include <netinet/if_ether.h>
-# endif
+#ifdef GNU_LINUX
+#include <net/ethernet.h>
+#else
+#include <netinet/if_ether.h>
+#endif
#endif
#include "sockunion.h"
#include "ipaddr.h"
@@ -48,11 +48,11 @@
* own to simplify internal handling
*/
struct ethaddr {
- u_char octet[ETHER_ADDR_LEN];
-} __attribute__ ((packed));
+ u_char octet[ETHER_ADDR_LEN];
+} __attribute__((packed));
-/* length is the number of valuable bits of prefix structure
+/* length is the number of valuable bits of prefix structure
* 18 bytes is current length in structure, if address is ipv4
* 30 bytes is in case of ipv6
*/
@@ -60,13 +60,12 @@ struct ethaddr {
#define PREFIX_LEN_ROUTE_TYPE_5_IPV6 (30*8)
/* EVPN address (RFC 7432) */
-struct evpn_addr
-{
- u_char route_type;
- u_char ip_prefix_length;
- struct ethaddr mac;
- uint32_t eth_tag;
- struct ipaddr ip;
+struct evpn_addr {
+ u_char route_type;
+ u_char ip_prefix_length;
+ struct ethaddr mac;
+ uint32_t eth_tag;
+ struct ipaddr ip;
#if 0
union
{
@@ -100,89 +99,78 @@ struct evpn_addr
#endif
/* IPv4 and IPv6 unified prefix structure. */
-struct prefix
-{
- u_char family;
- u_char prefixlen;
- union
- {
- u_char prefix;
- struct in_addr prefix4;
- struct in6_addr prefix6;
- struct
- {
- struct in_addr id;
- struct in_addr adv_router;
- } lp;
- struct ethaddr prefix_eth; /* AF_ETHERNET */
- u_char val[8];
- uintptr_t ptr;
- struct evpn_addr prefix_evpn;
- } u __attribute__ ((aligned (8)));
+struct prefix {
+ u_char family;
+ u_char prefixlen;
+ union {
+ u_char prefix;
+ struct in_addr prefix4;
+ struct in6_addr prefix6;
+ struct {
+ struct in_addr id;
+ struct in_addr adv_router;
+ } lp;
+ struct ethaddr prefix_eth; /* AF_ETHERNET */
+ u_char val[8];
+ uintptr_t ptr;
+ struct evpn_addr prefix_evpn;
+ } u __attribute__((aligned(8)));
};
/* IPv4 prefix structure. */
-struct prefix_ipv4
-{
- u_char family;
- u_char prefixlen;
- struct in_addr prefix __attribute__ ((aligned (8)));
+struct prefix_ipv4 {
+ u_char family;
+ u_char prefixlen;
+ struct in_addr prefix __attribute__((aligned(8)));
};
/* IPv6 prefix structure. */
-struct prefix_ipv6
-{
- u_char family;
- u_char prefixlen;
- struct in6_addr prefix __attribute__ ((aligned (8)));
+struct prefix_ipv6 {
+ u_char family;
+ u_char prefixlen;
+ struct in6_addr prefix __attribute__((aligned(8)));
};
-struct prefix_ls
-{
- u_char family;
- u_char prefixlen;
- struct in_addr id __attribute__ ((aligned (8)));
- struct in_addr adv_router;
+struct prefix_ls {
+ u_char family;
+ u_char prefixlen;
+ struct in_addr id __attribute__((aligned(8)));
+ struct in_addr adv_router;
};
/* Prefix for routing distinguisher. */
-struct prefix_rd
-{
- u_char family;
- u_char prefixlen;
- u_char val[8] __attribute__ ((aligned (8)));
+struct prefix_rd {
+ u_char family;
+ u_char prefixlen;
+ u_char val[8] __attribute__((aligned(8)));
};
/* Prefix for ethernet. */
-struct prefix_eth
-{
- u_char family;
- u_char prefixlen;
- struct ethaddr eth_addr __attribute__ ((aligned (8))); /* AF_ETHERNET */
+struct prefix_eth {
+ u_char family;
+ u_char prefixlen;
+ struct ethaddr eth_addr __attribute__((aligned(8))); /* AF_ETHERNET */
};
/* EVPN prefix structure. */
-struct prefix_evpn
-{
- u_char family;
- u_char prefixlen;
- struct evpn_addr prefix __attribute__ ((aligned (8)));
+struct prefix_evpn {
+ u_char family;
+ u_char prefixlen;
+ struct evpn_addr prefix __attribute__((aligned(8)));
};
/* Prefix for a generic pointer */
-struct prefix_ptr
-{
- u_char family;
- u_char prefixlen;
- uintptr_t prefix __attribute__ ((aligned (8)));
+struct prefix_ptr {
+ u_char family;
+ u_char prefixlen;
+ uintptr_t prefix __attribute__((aligned(8)));
};
-struct prefix_sg
-{
- u_char family;
- u_char prefixlen;
- struct in_addr src __attribute__ ((aligned (8)));
- struct in_addr grp;
+struct prefix_sg {
+ u_char family;
+ u_char prefixlen;
+ struct in_addr src __attribute__((aligned(8)));
+ struct in_addr grp;
};
/* helper to get type safety/avoid casts on calls
@@ -190,21 +178,19 @@ struct prefix_sg
* side, which strips type safety since the cast will accept any pointer
* type.)
*/
-union prefixptr
-{
- struct prefix *p;
- struct prefix_ipv4 *p4;
- struct prefix_ipv6 *p6;
- struct prefix_evpn *evp;
-} __attribute__ ((transparent_union));
-
-union prefixconstptr
-{
- const struct prefix *p;
- const struct prefix_ipv4 *p4;
- const struct prefix_ipv6 *p6;
- const struct prefix_evpn *evp;
-} __attribute__ ((transparent_union));
+union prefixptr {
+ struct prefix *p;
+ struct prefix_ipv4 *p4;
+ struct prefix_ipv6 *p6;
+ struct prefix_evpn *evp;
+} __attribute__((transparent_union));
+
+union prefixconstptr {
+ const struct prefix *p;
+ const struct prefix_ipv4 *p4;
+ const struct prefix_ipv6 *p6;
+ const struct prefix_evpn *evp;
+} __attribute__((transparent_union));
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN 16
@@ -262,115 +248,118 @@ union prefixconstptr
/* Prototypes. */
extern int str2family(const char *);
-extern int afi2family (afi_t);
-extern afi_t family2afi (int);
+extern int afi2family(afi_t);
+extern afi_t family2afi(int);
extern const char *safi2str(safi_t safi);
extern const char *afi2str(afi_t afi);
/* Check bit of the prefix. */
-extern unsigned int prefix_bit (const u_char *prefix, const u_char prefixlen);
-extern unsigned int prefix6_bit (const struct in6_addr *prefix, const u_char prefixlen);
+extern unsigned int prefix_bit(const u_char *prefix, const u_char prefixlen);
+extern unsigned int prefix6_bit(const struct in6_addr *prefix,
+ const u_char prefixlen);
-extern struct prefix *prefix_new (void);
-extern void prefix_free (struct prefix *);
-extern const char *prefix_family_str (const struct prefix *);
-extern int prefix_blen (const struct prefix *);
-extern int str2prefix (const char *, struct prefix *);
+extern struct prefix *prefix_new(void);
+extern void prefix_free(struct prefix *);
+extern const char *prefix_family_str(const struct prefix *);
+extern int prefix_blen(const struct prefix *);
+extern int str2prefix(const char *, struct prefix *);
#define PREFIX2STR_BUFFER PREFIX_STRLEN
-extern const char *prefix2str (union prefixconstptr, char *, int);
-extern int prefix_match (const struct prefix *, const struct prefix *);
-extern int prefix_match_network_statement (const struct prefix *, const struct prefix *);
-extern int prefix_same (const struct prefix *, const struct prefix *);
-extern int prefix_cmp (const struct prefix *, const struct prefix *);
-extern int prefix_common_bits (const struct prefix *, const struct prefix *);
-extern void prefix_copy (struct prefix *dest, const struct prefix *src);
-extern void apply_mask (struct prefix *);
-
-extern struct prefix *sockunion2prefix (const union sockunion *dest,
- const union sockunion *mask);
-extern struct prefix *sockunion2hostprefix (const union sockunion *, struct prefix *p);
-extern void prefix2sockunion (const struct prefix *, union sockunion *);
-
-extern int str2prefix_eth (const char *, struct prefix_eth *);
-
-extern struct prefix_ipv4 *prefix_ipv4_new (void);
-extern void prefix_ipv4_free (struct prefix_ipv4 *);
-extern int str2prefix_ipv4 (const char *, struct prefix_ipv4 *);
-extern void apply_mask_ipv4 (struct prefix_ipv4 *);
-
-#define PREFIX_COPY_IPV4(DST, SRC) \
+extern const char *prefix2str(union prefixconstptr, char *, int);
+extern int prefix_match(const struct prefix *, const struct prefix *);
+extern int prefix_match_network_statement(const struct prefix *,
+ const struct prefix *);
+extern int prefix_same(const struct prefix *, const struct prefix *);
+extern int prefix_cmp(const struct prefix *, const struct prefix *);
+extern int prefix_common_bits(const struct prefix *, const struct prefix *);
+extern void prefix_copy(struct prefix *dest, const struct prefix *src);
+extern void apply_mask(struct prefix *);
+
+extern struct prefix *sockunion2prefix(const union sockunion *dest,
+ const union sockunion *mask);
+extern struct prefix *sockunion2hostprefix(const union sockunion *,
+ struct prefix *p);
+extern void prefix2sockunion(const struct prefix *, union sockunion *);
+
+extern int str2prefix_eth(const char *, struct prefix_eth *);
+
+extern struct prefix_ipv4 *prefix_ipv4_new(void);
+extern void prefix_ipv4_free(struct prefix_ipv4 *);
+extern int str2prefix_ipv4(const char *, struct prefix_ipv4 *);
+extern void apply_mask_ipv4(struct prefix_ipv4 *);
+
+#define PREFIX_COPY_IPV4(DST, SRC) \
*((struct prefix_ipv4 *)(DST)) = *((const struct prefix_ipv4 *)(SRC));
-extern int prefix_ipv4_any (const struct prefix_ipv4 *);
-extern void apply_classful_mask_ipv4 (struct prefix_ipv4 *);
+extern int prefix_ipv4_any(const struct prefix_ipv4 *);
+extern void apply_classful_mask_ipv4(struct prefix_ipv4 *);
-extern u_char ip_masklen (struct in_addr);
-extern void masklen2ip (const int, struct in_addr *);
+extern u_char ip_masklen(struct in_addr);
+extern void masklen2ip(const int, struct in_addr *);
/* returns the network portion of the host address */
-extern in_addr_t ipv4_network_addr (in_addr_t hostaddr, int masklen);
+extern in_addr_t ipv4_network_addr(in_addr_t hostaddr, int masklen);
/* given the address of a host on a network and the network mask length,
* calculate the broadcast address for that network;
* special treatment for /31: returns the address of the other host
* on the network by flipping the host bit */
-extern in_addr_t ipv4_broadcast_addr (in_addr_t hostaddr, int masklen);
+extern in_addr_t ipv4_broadcast_addr(in_addr_t hostaddr, int masklen);
-extern int netmask_str2prefix_str (const char *, const char *, char *);
+extern int netmask_str2prefix_str(const char *, const char *, char *);
-extern struct prefix_ipv6 *prefix_ipv6_new (void);
-extern void prefix_ipv6_free (struct prefix_ipv6 *);
-extern int str2prefix_ipv6 (const char *, struct prefix_ipv6 *);
-extern void apply_mask_ipv6 (struct prefix_ipv6 *);
+extern struct prefix_ipv6 *prefix_ipv6_new(void);
+extern void prefix_ipv6_free(struct prefix_ipv6 *);
+extern int str2prefix_ipv6(const char *, struct prefix_ipv6 *);
+extern void apply_mask_ipv6(struct prefix_ipv6 *);
-#define PREFIX_COPY_IPV6(DST, SRC) \
+#define PREFIX_COPY_IPV6(DST, SRC) \
*((struct prefix_ipv6 *)(DST)) = *((const struct prefix_ipv6 *)(SRC));
-extern int ip6_masklen (struct in6_addr);
-extern void masklen2ip6 (const int, struct in6_addr *);
+extern int ip6_masklen(struct in6_addr);
+extern void masklen2ip6(const int, struct in6_addr *);
-extern const char *inet6_ntoa (struct in6_addr);
+extern const char *inet6_ntoa(struct in6_addr);
extern int prefix_str2mac(const char *str, struct ethaddr *mac);
extern char *prefix_mac2str(const struct ethaddr *mac, char *buf, int size);
-static inline int ipv6_martian (struct in6_addr *addr)
+static inline int ipv6_martian(struct in6_addr *addr)
{
- struct in6_addr localhost_addr;
+ struct in6_addr localhost_addr;
- inet_pton (AF_INET6, "::1", &localhost_addr);
+ inet_pton(AF_INET6, "::1", &localhost_addr);
- if (IPV6_ADDR_SAME(&localhost_addr, addr))
- return 1;
+ if (IPV6_ADDR_SAME(&localhost_addr, addr))
+ return 1;
- return 0;
+ return 0;
}
-extern int all_digit (const char *);
+extern int all_digit(const char *);
/* NOTE: This routine expects the address argument in network byte order. */
-static inline int ipv4_martian (struct in_addr *addr)
+static inline int ipv4_martian(struct in_addr *addr)
{
- in_addr_t ip = ntohl(addr->s_addr);
+ in_addr_t ip = ntohl(addr->s_addr);
- if (IPV4_NET0(ip) || IPV4_NET127(ip) || IPV4_CLASS_DE(ip)) {
- return 1;
- }
- return 0;
+ if (IPV4_NET0(ip) || IPV4_NET127(ip) || IPV4_CLASS_DE(ip)) {
+ return 1;
+ }
+ return 0;
}
-static inline int
-is_default_prefix (struct prefix *p)
+static inline int is_default_prefix(struct prefix *p)
{
- if (!p)
- return 0;
+ if (!p)
+ return 0;
- if (((p->family == AF_INET) && (p->u.prefix4.s_addr == INADDR_ANY))
- || ((p->family == AF_INET6) &&
- !memcmp(&p->u.prefix6, &in6addr_any, sizeof (struct in6_addr))))
- return 1;
+ if (((p->family == AF_INET) && (p->u.prefix4.s_addr == INADDR_ANY))
+ || ((p->family == AF_INET6)
+ && !memcmp(&p->u.prefix6, &in6addr_any,
+ sizeof(struct in6_addr))))
+ return 1;
- return 0;
+ return 0;
}
#endif /* _ZEBRA_PREFIX_H */