1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __LINUX_MROUTE_H 3 #define __LINUX_MROUTE_H 4 5 #include <linux/in.h> 6 #include <linux/pim.h> 7 #include <net/fib_rules.h> 8 #include <net/fib_notifier.h> 9 #include <uapi/linux/mroute.h> 10 #include <linux/mroute_base.h> 11 #include <linux/sockptr.h> 12 13 #ifdef CONFIG_IP_MROUTE 14 static inline int ip_mroute_opt(int opt) 15 { 16 return opt >= MRT_BASE && opt <= MRT_MAX; 17 } 18 19 int ip_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int); 20 int ip_mroute_getsockopt(struct sock *, int, sockptr_t, sockptr_t); 21 int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg); 22 int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg); 23 int ip_mr_init(void); 24 bool ipmr_rule_default(const struct fib_rule *rule); 25 #else 26 static inline int ip_mroute_setsockopt(struct sock *sock, int optname, 27 sockptr_t optval, unsigned int optlen) 28 { 29 return -ENOPROTOOPT; 30 } 31 32 static inline int ip_mroute_getsockopt(struct sock *sk, int optname, 33 sockptr_t optval, sockptr_t optlen) 34 { 35 return -ENOPROTOOPT; 36 } 37 38 static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg) 39 { 40 return -ENOIOCTLCMD; 41 } 42 43 static inline int ip_mr_init(void) 44 { 45 return 0; 46 } 47 48 static inline int ip_mroute_opt(int opt) 49 { 50 return 0; 51 } 52 53 static inline bool ipmr_rule_default(const struct fib_rule *rule) 54 { 55 return true; 56 } 57 #endif 58 59 #define VIFF_STATIC 0x8000 60 61 struct mfc_cache_cmp_arg { 62 __be32 mfc_mcastgrp; 63 __be32 mfc_origin; 64 }; 65 66 /** 67 * struct mfc_cache - multicast routing entries 68 * @_c: Common multicast routing information; has to be first [for casting] 69 * @mfc_mcastgrp: destination multicast group address 70 * @mfc_origin: source address 71 * @cmparg: used for rhashtable comparisons 72 */ 73 struct mfc_cache { 74 struct mr_mfc _c; 75 union { 76 struct { 77 __be32 mfc_mcastgrp; 78 __be32 mfc_origin; 79 }; 80 struct mfc_cache_cmp_arg cmparg; 81 }; 82 }; 83 84 struct rtmsg; 85 int ipmr_get_route(struct net *net, struct sk_buff *skb, 86 __be32 saddr, __be32 daddr, 87 struct rtmsg *rtm, u32 portid); 88 #endif 89