+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* PIM for Quagga
* Copyright (C) 2008 Everton da Silva Marques
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; see the file COPYING; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PIM_MSG_H
#define PIM_MSG_H
#include <netinet/in.h>
+#if PIM_IPV == 6
+#include <netinet/ip6.h>
+#endif
#include "pim_jp_agg.h"
struct in_addr addr;
} __attribute__((packed));
+struct pim_encoded_ipv6_unicast {
+ uint8_t family;
+ uint8_t reserved;
+ struct in6_addr addr;
+} __attribute__((packed));
+
/*
* Encoded Group format. RFC 4601 Sec 4.9.1
* 0 1 2 3
struct in_addr addr;
} __attribute__((packed));
+struct pim_encoded_group_ipv6 {
+ uint8_t family;
+ uint8_t ne;
+#if (BYTE_ORDER == LITTLE_ENDIAN)
+ uint8_t sz : 1; /* scope zone bit */
+ uint8_t reserved : 6; /* Reserved */
+ uint8_t bidir : 1; /* Bidir bit */
+#elif (BYTE_ORDER == BIG_ENDIAN)
+ uint8_t bidir : 1; /* Bidir bit */
+ uint8_t reserved : 6; /* Reserved */
+ uint8_t sz : 1; /* scope zone bit */
+#else
+#error "Please set byte order"
+#endif
+ uint8_t mask;
+ struct in6_addr addr;
+} __attribute__((packed));
/*
* Encoded Source format. RFC 4601 Sec 4.9.1
struct in_addr addr;
} __attribute__((packed));
+struct pim_encoded_source_ipv6 {
+ uint8_t family;
+ uint8_t ne;
+ uint8_t bits;
+ uint8_t mask;
+ struct in6_addr addr;
+} __attribute__((packed));
+
+/* clang-format off */
+#if PIM_IPV == 4
+typedef struct pim_encoded_ipv4_unicast pim_encoded_unicast;
+typedef struct pim_encoded_group_ipv4 pim_encoded_group;
+typedef struct pim_encoded_source_ipv4 pim_encoded_source;
+typedef struct ip ipv_hdr;
+#define IPV_SRC(ip_hdr) ((ip_hdr))->ip_src
+#define IPV_DST(ip_hdr) ((ip_hdr))->ip_dst
+#define IPV_LEN(ip_hdr) ((ip_hdr))->ip_len
+#else
+typedef struct pim_encoded_ipv6_unicast pim_encoded_unicast;
+typedef struct pim_encoded_group_ipv6 pim_encoded_group;
+typedef struct pim_encoded_source_ipv6 pim_encoded_source;
+typedef struct ip6_hdr ipv_hdr;
+#define IPV_SRC(ip_hdr) ((ip_hdr))->ip6_src
+#define IPV_DST(ip_hdr) ((ip_hdr))->ip6_dst
+#define IPV_LEN(ip_hdr) ((ip_hdr))->ip6_plen
+#endif
+/* clang-format on */
+
struct pim_jp_groups {
- struct pim_encoded_group_ipv4 g;
+ pim_encoded_group g;
uint16_t joins;
uint16_t prunes;
- struct pim_encoded_source_ipv4 s[1];
+ pim_encoded_source s[1];
} __attribute__((packed));
struct pim_jp {
struct pim_msg_header header;
- struct pim_encoded_ipv4_unicast addr;
+ pim_encoded_unicast addr;
uint8_t reserved;
uint8_t num_groups;
uint16_t holdtime;
struct pim_jp_groups groups[1];
} __attribute__((packed));
-void pim_msg_build_header(uint8_t *pim_msg, size_t pim_msg_size,
- uint8_t pim_msg_type, bool no_fwd);
+#if PIM_IPV == 4
+static inline pim_sgaddr pim_sgaddr_from_iphdr(const void *iphdr)
+{
+ const struct ip *ipv4_hdr = iphdr;
+ pim_sgaddr sg;
+
+ sg.src = ipv4_hdr->ip_src;
+ sg.grp = ipv4_hdr->ip_dst;
+
+ return sg;
+}
+#else
+static inline pim_sgaddr pim_sgaddr_from_iphdr(const void *iphdr)
+{
+ const struct ip6_hdr *ipv6_hdr = iphdr;
+ pim_sgaddr sg;
+
+ sg.src = ipv6_hdr->ip6_src;
+ sg.grp = ipv6_hdr->ip6_dst;
+
+ return sg;
+}
+#endif
+
+void pim_msg_build_header(pim_addr src, pim_addr dst, uint8_t *pim_msg,
+ size_t pim_msg_size, uint8_t pim_msg_type,
+ bool no_fwd);
uint8_t *pim_msg_addr_encode_ipv4_ucast(uint8_t *buf, struct in_addr addr);
uint8_t *pim_msg_addr_encode_ipv4_group(uint8_t *buf, struct in_addr addr);
uint8_t *pim_msg_addr_encode_ipv4_source(uint8_t *buf, struct in_addr addr,
uint8_t bits);
+uint8_t *pim_msg_addr_encode_ipv6_ucast(uint8_t *buf, struct in6_addr addr);
+uint8_t *pim_msg_addr_encode_ipv6_group(uint8_t *buf, struct in6_addr addr);
+uint8_t *pim_msg_addr_encode_ipv6_source(uint8_t *buf, struct in6_addr addr,
+ uint8_t bits);
+
+uint8_t *pim_msg_addr_encode_ucast(uint8_t *buf, pim_addr addr);
+uint8_t *pim_msg_addr_encode_group(uint8_t *buf, pim_addr addr);
+uint8_t *pim_msg_addr_encode_source(uint8_t *buf, pim_addr addr, uint8_t bits);
size_t pim_msg_get_jp_group_size(struct list *sources);
size_t pim_msg_build_jp_groups(struct pim_jp_groups *grp,