From fe1217c4f3f7d7cbf8efdd8dd5fdc7204a1d65a8 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Sun, 29 Dec 2013 18:27:10 +0100 Subject: net: net_cls: move cgroupfs classid handling into core Zefan Li requested [1] to perform the following cleanup/refactoring: - Split cgroupfs classid handling into net core to better express a possible more generic use. - Disable module support for cgroupfs bits as the majority of other cgroupfs subsystems do not have that, and seems to be not wished from cgroup side. Zefan probably might want to follow-up for netprio later on. - By this, code can be further reduced which previously took care of functionality built when compiled as module. cgroupfs bits are being placed under net/core/netclassid_cgroup.c, so that we are consistent with {netclassid,netprio}_cgroup naming that is under net/core/ as suggested by Zefan. No change in functionality, but only code refactoring that is being done here. [1] http://patchwork.ozlabs.org/patch/304825/ Suggested-by: Li Zefan Signed-off-by: Daniel Borkmann Cc: Zefan Li Cc: Thomas Graf Cc: cgroups@vger.kernel.org Acked-by: Li Zefan Signed-off-by: Pablo Neira Ayuso --- net/core/sock.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index ab20ed9b0f3..3f150729fb1 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1308,18 +1308,6 @@ static void sk_prot_free(struct proto *prot, struct sock *sk) module_put(owner); } -#if IS_ENABLED(CONFIG_NET_CLS_CGROUP) -void sock_update_classid(struct sock *sk) -{ - u32 classid; - - classid = task_cls_classid(current); - if (classid != sk->sk_classid) - sk->sk_classid = classid; -} -EXPORT_SYMBOL(sock_update_classid); -#endif - #if IS_ENABLED(CONFIG_NETPRIO_CGROUP) void sock_update_netprioidx(struct sock *sk) { -- cgit v1.2.3-70-g09d2 From 86f8515f9721fa171483f0fe0391968fbb949cc9 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Sun, 29 Dec 2013 17:27:11 +0100 Subject: net: netprio: rename config to be more consistent with cgroup configs While we're at it and introduced CGROUP_NET_CLASSID, lets also make NETPRIO_CGROUP more consistent with the rest of cgroups and rename it into CONFIG_CGROUP_NET_PRIO so that for networking, we now have CONFIG_CGROUP_NET_{PRIO,CLASSID}. This not only makes the CONFIG option consistent among networking cgroups, but also among cgroups CONFIG conventions in general as the vast majority has a prefix of CONFIG_CGROUP_. Signed-off-by: Daniel Borkmann Cc: Zefan Li Cc: cgroups@vger.kernel.org Acked-by: Li Zefan Signed-off-by: Pablo Neira Ayuso --- include/linux/cgroup_subsys.h | 2 +- include/linux/netdevice.h | 2 +- include/net/netprio_cgroup.h | 18 ++++++------------ include/net/sock.h | 2 +- net/Kconfig | 4 ++-- net/core/Makefile | 2 +- net/core/dev.c | 2 +- net/core/sock.c | 2 +- 8 files changed, 14 insertions(+), 20 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index 58bf94de4b8..7b99d717411 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -43,7 +43,7 @@ SUBSYS(blkio) SUBSYS(perf) #endif -#if IS_SUBSYS_ENABLED(CONFIG_NETPRIO_CGROUP) +#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_NET_PRIO) SUBSYS(net_prio) #endif diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 5260d2eae2e..45cf68194aa 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1444,7 +1444,7 @@ struct net_device { /* max exchange id for FCoE LRO by ddp */ unsigned int fcoe_ddp_xid; #endif -#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) +#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) struct netprio_map __rcu *priomap; #endif /* phy device may attach itself for hardware timestamping */ diff --git a/include/net/netprio_cgroup.h b/include/net/netprio_cgroup.h index 099d02782e2..dafc09f0fdb 100644 --- a/include/net/netprio_cgroup.h +++ b/include/net/netprio_cgroup.h @@ -13,12 +13,12 @@ #ifndef _NETPRIO_CGROUP_H #define _NETPRIO_CGROUP_H + #include #include #include - -#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) +#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) struct netprio_map { struct rcu_head rcu; u32 priomap_len; @@ -27,8 +27,7 @@ struct netprio_map { void sock_update_netprioidx(struct sock *sk); -#if IS_BUILTIN(CONFIG_NETPRIO_CGROUP) - +#if IS_BUILTIN(CONFIG_CGROUP_NET_PRIO) static inline u32 task_netprioidx(struct task_struct *p) { struct cgroup_subsys_state *css; @@ -40,9 +39,7 @@ static inline u32 task_netprioidx(struct task_struct *p) rcu_read_unlock(); return idx; } - -#elif IS_MODULE(CONFIG_NETPRIO_CGROUP) - +#elif IS_MODULE(CONFIG_CGROUP_NET_PRIO) static inline u32 task_netprioidx(struct task_struct *p) { struct cgroup_subsys_state *css; @@ -56,9 +53,7 @@ static inline u32 task_netprioidx(struct task_struct *p) return idx; } #endif - -#else /* !CONFIG_NETPRIO_CGROUP */ - +#else /* !CONFIG_CGROUP_NET_PRIO */ static inline u32 task_netprioidx(struct task_struct *p) { return 0; @@ -66,6 +61,5 @@ static inline u32 task_netprioidx(struct task_struct *p) #define sock_update_netprioidx(sk) -#endif /* CONFIG_NETPRIO_CGROUP */ - +#endif /* CONFIG_CGROUP_NET_PRIO */ #endif /* _NET_CLS_CGROUP_H */ diff --git a/include/net/sock.h b/include/net/sock.h index 2ef3c3eca47..ef5e2be6eaf 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -395,7 +395,7 @@ struct sock { unsigned short sk_ack_backlog; unsigned short sk_max_ack_backlog; __u32 sk_priority; -#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) +#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) __u32 sk_cgrp_prioidx; #endif struct pid *sk_peer_pid; diff --git a/net/Kconfig b/net/Kconfig index 7da10b830d7..e411046a62e 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -238,12 +238,12 @@ config XPS depends on SMP default y -config NETPRIO_CGROUP +config CGROUP_NET_PRIO tristate "Network priority cgroup" depends on CGROUPS ---help--- Cgroup subsystem for use in assigning processes to network priorities on - a per-interface basis + a per-interface basis. config CGROUP_NET_CLASSID boolean "Network classid cgroup" diff --git a/net/core/Makefile b/net/core/Makefile index 4839a279696..9628c20acff 100644 --- a/net/core/Makefile +++ b/net/core/Makefile @@ -21,5 +21,5 @@ obj-$(CONFIG_FIB_RULES) += fib_rules.o obj-$(CONFIG_TRACEPOINTS) += net-traces.o obj-$(CONFIG_NET_DROP_MONITOR) += drop_monitor.o obj-$(CONFIG_NETWORK_PHY_TIMESTAMPING) += timestamping.o -obj-$(CONFIG_NETPRIO_CGROUP) += netprio_cgroup.o +obj-$(CONFIG_CGROUP_NET_PRIO) += netprio_cgroup.o obj-$(CONFIG_CGROUP_NET_CLASSID) += netclassid_cgroup.o diff --git a/net/core/dev.c b/net/core/dev.c index c95d664b2b4..888a79b2b8b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2747,7 +2747,7 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, return rc; } -#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) +#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) static void skb_update_prio(struct sk_buff *skb) { struct netprio_map *map = rcu_dereference_bh(skb->dev->priomap); diff --git a/net/core/sock.c b/net/core/sock.c index 3f150729fb1..a29735c9a05 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1308,7 +1308,7 @@ static void sk_prot_free(struct proto *prot, struct sock *sk) module_put(owner); } -#if IS_ENABLED(CONFIG_NETPRIO_CGROUP) +#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO) void sock_update_netprioidx(struct sock *sk) { if (in_interrupt()) -- cgit v1.2.3-70-g09d2 From 8f09898bf02fc24b7a525e9cfc78f38dcdf3a4eb Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Fri, 3 Jan 2014 09:17:14 -0800 Subject: socket: cleanups Namespace related cleaning * make cred_to_ucred static * remove unused sock_rmalloc function Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/linux/socket.h | 2 -- include/net/sock.h | 2 -- net/core/sock.c | 21 ++------------------- 3 files changed, 2 insertions(+), 23 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/linux/socket.h b/include/linux/socket.h index 445ef7519dc..5d488a65ad2 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -305,8 +305,6 @@ struct ucred { /* IPX options */ #define IPX_TYPE 1 -extern void cred_to_ucred(struct pid *pid, const struct cred *cred, struct ucred *ucred); - extern int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, int offset, int len); extern int csum_partial_copy_fromiovecend(unsigned char *kdata, diff --git a/include/net/sock.h b/include/net/sock.h index bd716b6996f..8d9af66ccf2 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1549,8 +1549,6 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority); struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, gfp_t priority); -struct sk_buff *sock_rmalloc(struct sock *sk, unsigned long size, int force, - gfp_t priority); void sock_wfree(struct sk_buff *skb); void skb_orphan_partial(struct sk_buff *skb); void sock_rfree(struct sk_buff *skb); diff --git a/net/core/sock.c b/net/core/sock.c index 5393b4b719d..0358855576a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -925,8 +925,8 @@ set_rcvbuf: EXPORT_SYMBOL(sock_setsockopt); -void cred_to_ucred(struct pid *pid, const struct cred *cred, - struct ucred *ucred) +static void cred_to_ucred(struct pid *pid, const struct cred *cred, + struct ucred *ucred) { ucred->pid = pid_vnr(pid); ucred->uid = ucred->gid = -1; @@ -937,7 +937,6 @@ void cred_to_ucred(struct pid *pid, const struct cred *cred, ucred->gid = from_kgid_munged(current_ns, cred->egid); } } -EXPORT_SYMBOL_GPL(cred_to_ucred); int sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) @@ -1665,22 +1664,6 @@ struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, } EXPORT_SYMBOL(sock_wmalloc); -/* - * Allocate a skb from the socket's receive buffer. - */ -struct sk_buff *sock_rmalloc(struct sock *sk, unsigned long size, int force, - gfp_t priority) -{ - if (force || atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf) { - struct sk_buff *skb = alloc_skb(size, priority); - if (skb) { - skb_set_owner_r(skb, sk); - return skb; - } - } - return NULL; -} - /* * Allocate a memory block from the socket's option memory buffer. */ -- cgit v1.2.3-70-g09d2 From 097b4f19e508015ca65a28ea4876740d35a19eea Mon Sep 17 00:00:00 2001 From: Michael Dalton Date: Thu, 16 Jan 2014 22:23:25 -0800 Subject: net: allow > 0 order atomic page alloc in skb_page_frag_refill skb_page_frag_refill currently permits only order-0 page allocs unless GFP_WAIT is used. Change skb_page_frag_refill to attempt higher-order page allocations whether or not GFP_WAIT is used. If memory cannot be allocated, the allocator will fall back to successively smaller page allocs (down to order-0 page allocs). This change brings skb_page_frag_refill in line with the existing page allocation strategy employed by netdev_alloc_frag, which attempts higher-order page allocations whether or not GFP_WAIT is set, falling back to successively lower-order page allocations on failure. Part of migration of virtio-net to per-receive queue page frag allocators. Acked-by: Michael S. Tsirkin Acked-by: Eric Dumazet Signed-off-by: Michael Dalton Signed-off-by: David S. Miller --- net/core/sock.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index 85ad6f0d389..b3f7ee3008a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1836,9 +1836,7 @@ bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio) put_page(pfrag->page); } - /* We restrict high order allocations to users that can afford to wait */ - order = (prio & __GFP_WAIT) ? SKB_FRAG_PAGE_ORDER : 0; - + order = SKB_FRAG_PAGE_ORDER; do { gfp_t gfp = prio; -- cgit v1.2.3-70-g09d2 From ea02f9411d9faa3553ed09ce0ec9f00ceae9885e Mon Sep 17 00:00:00 2001 From: Michal Sekletar Date: Fri, 17 Jan 2014 17:09:45 +0100 Subject: net: introduce SO_BPF_EXTENSIONS For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9f85d ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by: Michal Sekletar Cc: David Miller Reviewed-by: Daniel Borkmann Signed-off-by: David S. Miller --- arch/alpha/include/uapi/asm/socket.h | 2 ++ arch/avr32/include/uapi/asm/socket.h | 2 ++ arch/cris/include/uapi/asm/socket.h | 2 ++ arch/frv/include/uapi/asm/socket.h | 2 ++ arch/ia64/include/uapi/asm/socket.h | 2 ++ arch/m32r/include/uapi/asm/socket.h | 2 ++ arch/mips/include/uapi/asm/socket.h | 2 ++ arch/mn10300/include/uapi/asm/socket.h | 2 ++ arch/parisc/include/uapi/asm/socket.h | 2 ++ arch/powerpc/include/uapi/asm/socket.h | 2 ++ arch/s390/include/uapi/asm/socket.h | 2 ++ arch/sparc/include/uapi/asm/socket.h | 2 ++ arch/xtensa/include/uapi/asm/socket.h | 2 ++ include/linux/filter.h | 11 +++++++++++ include/uapi/asm-generic/socket.h | 2 ++ net/core/sock.c | 4 ++++ 16 files changed, 43 insertions(+) (limited to 'net/core/sock.c') diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index e3a1491d507..3de1394bcab 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -85,4 +85,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h index cbf902e4cd9..6e6cd159924 100644 --- a/arch/avr32/include/uapi/asm/socket.h +++ b/arch/avr32/include/uapi/asm/socket.h @@ -78,4 +78,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _UAPI__ASM_AVR32_SOCKET_H */ diff --git a/arch/cris/include/uapi/asm/socket.h b/arch/cris/include/uapi/asm/socket.h index 13829aaaeec..ed94e5ed0a2 100644 --- a/arch/cris/include/uapi/asm/socket.h +++ b/arch/cris/include/uapi/asm/socket.h @@ -80,6 +80,8 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h index 5d429976242..ca2c6e6f31c 100644 --- a/arch/frv/include/uapi/asm/socket.h +++ b/arch/frv/include/uapi/asm/socket.h @@ -78,5 +78,7 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h index c25302fb48d..a1b49bac795 100644 --- a/arch/ia64/include/uapi/asm/socket.h +++ b/arch/ia64/include/uapi/asm/socket.h @@ -87,4 +87,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h index 52966650114..6c9a24b3aef 100644 --- a/arch/m32r/include/uapi/asm/socket.h +++ b/arch/m32r/include/uapi/asm/socket.h @@ -78,4 +78,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index 0df9787cd84..a14baa218c7 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -96,4 +96,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h index 71dedcae55a..6aa3ce1854a 100644 --- a/arch/mn10300/include/uapi/asm/socket.h +++ b/arch/mn10300/include/uapi/asm/socket.h @@ -78,4 +78,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index 70b3674dac4..fe35ceacf0e 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -77,4 +77,6 @@ #define SO_MAX_PACING_RATE 0x4028 +#define SO_BPF_EXTENSIONS 0x4029 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h index fa698324a1f..a9c3e2e18c0 100644 --- a/arch/powerpc/include/uapi/asm/socket.h +++ b/arch/powerpc/include/uapi/asm/socket.h @@ -85,4 +85,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h index c286c2e868f..e031332096d 100644 --- a/arch/s390/include/uapi/asm/socket.h +++ b/arch/s390/include/uapi/asm/socket.h @@ -84,4 +84,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index 0f21e9a5ca1..54d9608681b 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -74,6 +74,8 @@ #define SO_MAX_PACING_RATE 0x0031 +#define SO_BPF_EXTENSIONS 0x0032 + /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 0x5001 #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h index 7db5c22faa6..39acec0cf0b 100644 --- a/arch/xtensa/include/uapi/asm/socket.h +++ b/arch/xtensa/include/uapi/asm/socket.h @@ -89,4 +89,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _XTENSA_SOCKET_H */ diff --git a/include/linux/filter.h b/include/linux/filter.h index ff4e40cd45b..1a95a2dcf11 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -83,6 +83,17 @@ static inline void bpf_jit_free(struct sk_filter *fp) #define SK_RUN_FILTER(FILTER, SKB) sk_run_filter(SKB, FILTER->insns) #endif +static inline int bpf_tell_extensions(void) +{ + /* When adding new BPF extension it is necessary to enumerate + * it here, so userspace software which wants to know what is + * supported can do so by inspecting return value of this + * function + */ + + return 0; +} + enum { BPF_S_RET_K = 1, BPF_S_RET_A, diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 38f14d0264c..ea0796bdcf8 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -80,4 +80,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/core/sock.c b/net/core/sock.c index b3f7ee3008a..0c127dcdf6a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1167,6 +1167,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sock_flag(sk, SOCK_FILTER_LOCKED); break; + case SO_BPF_EXTENSIONS: + v.val = bpf_tell_extensions(); + break; + case SO_SELECT_ERR_QUEUE: v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE); break; -- cgit v1.2.3-70-g09d2