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728f064cd7
Similar to the earlier patch that changes sk_getsockopt() to take the sockptr_t argument. This patch also changes do_ip_getsockopt() to take the sockptr_t argument such that a latter patch can make bpf_getsockopt(SOL_IP) to reuse do_ip_getsockopt(). Note on the change in ip_mc_gsfget(). This function is to return an array of sockaddr_storage in optval. This function is shared between ip_get_mcast_msfilter() and compat_ip_get_mcast_msfilter(). However, the sockaddr_storage is stored at different offset of the optval because of the difference between group_filter and compat_group_filter. Thus, a new 'ss_offset' argument is added to ip_mc_gsfget(). Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20220902002828.2890585-1-kafai@fb.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
88 lines
2 KiB
C
88 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_MROUTE_H
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#define __LINUX_MROUTE_H
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#include <linux/in.h>
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#include <linux/pim.h>
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#include <net/fib_rules.h>
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#include <net/fib_notifier.h>
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#include <uapi/linux/mroute.h>
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#include <linux/mroute_base.h>
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#include <linux/sockptr.h>
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#ifdef CONFIG_IP_MROUTE
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static inline int ip_mroute_opt(int opt)
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{
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return opt >= MRT_BASE && opt <= MRT_MAX;
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}
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int ip_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
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int ip_mroute_getsockopt(struct sock *, int, sockptr_t, sockptr_t);
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int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
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int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
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int ip_mr_init(void);
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bool ipmr_rule_default(const struct fib_rule *rule);
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#else
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static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
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sockptr_t optval, unsigned int optlen)
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{
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return -ENOPROTOOPT;
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}
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static inline int ip_mroute_getsockopt(struct sock *sk, int optname,
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sockptr_t optval, sockptr_t optlen)
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{
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return -ENOPROTOOPT;
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}
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static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
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{
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return -ENOIOCTLCMD;
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}
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static inline int ip_mr_init(void)
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{
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return 0;
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}
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static inline int ip_mroute_opt(int opt)
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{
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return 0;
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}
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static inline bool ipmr_rule_default(const struct fib_rule *rule)
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{
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return true;
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}
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#endif
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#define VIFF_STATIC 0x8000
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struct mfc_cache_cmp_arg {
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__be32 mfc_mcastgrp;
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__be32 mfc_origin;
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};
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/**
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* struct mfc_cache - multicast routing entries
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* @_c: Common multicast routing information; has to be first [for casting]
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* @mfc_mcastgrp: destination multicast group address
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* @mfc_origin: source address
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* @cmparg: used for rhashtable comparisons
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*/
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struct mfc_cache {
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struct mr_mfc _c;
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union {
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struct {
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__be32 mfc_mcastgrp;
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__be32 mfc_origin;
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};
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struct mfc_cache_cmp_arg cmparg;
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};
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};
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struct rtmsg;
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int ipmr_get_route(struct net *net, struct sk_buff *skb,
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__be32 saddr, __be32 daddr,
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struct rtmsg *rtm, u32 portid);
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#endif
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