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/linux/tools/testing/selftests/bpf/prog_tests/
H A Dtc_bpf.c26 static int test_tc_bpf_basic(const struct bpf_tc_hook *hook, int fd) in test_tc_bpf_basic() argument
37 ret = bpf_tc_attach(hook, &opts); in test_tc_bpf_basic()
48 ret = bpf_tc_attach(hook, &opts); in test_tc_bpf_basic()
53 ret = bpf_tc_query(hook, &opts); in test_tc_bpf_basic()
64 ret = bpf_tc_detach(hook, &opts); in test_tc_bpf_basic()
69 static int test_tc_bpf_api(struct bpf_tc_hook *hook, int fd) in test_tc_bpf_api() argument
77 if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook = NULL")) in test_tc_bpf_api()
80 /* hook ifindex = 0 */ in test_tc_bpf_api()
82 if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook ifindex == 0")) in test_tc_bpf_api()
86 if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook ifindex == 0")) in test_tc_bpf_api()
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/linux/net/netfilter/
H A Dnf_bpf_link.c38 const struct nf_defrag_hook *hook; in get_proto_defrag_hook() local
43 hook = rcu_dereference(*ptr_global_hook); in get_proto_defrag_hook()
44 if (!hook) { in get_proto_defrag_hook()
51 hook = rcu_dereference(*ptr_global_hook); in get_proto_defrag_hook()
54 if (hook && try_module_get(hook->owner)) { in get_proto_defrag_hook()
56 hook = rcu_pointer_handoff(hook); in get_proto_defrag_hook()
58 WARN_ONCE(!hook, "%s has bad registration", mod); in get_proto_defrag_hook()
59 hook = ERR_PTR(-ENOENT); in get_proto_defrag_hook()
63 if (!IS_ERR(hook)) { in get_proto_defrag_hook()
64 err = hook->enable(link->net); in get_proto_defrag_hook()
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H A Dutils.c10 __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook, in nf_ip_checksum() argument
18 if (hook != NF_INET_PRE_ROUTING && hook != NF_INET_LOCAL_IN) in nf_ip_checksum()
43 static __sum16 nf_ip_checksum_partial(struct sk_buff *skb, unsigned int hook, in nf_ip_checksum_partial() argument
53 return nf_ip_checksum(skb, hook, dataoff, protocol); in nf_ip_checksum_partial()
64 __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, in nf_ip6_checksum() argument
72 if (hook != NF_INET_PRE_ROUTING && hook != NF_INET_LOCAL_IN) in nf_ip6_checksum()
97 static __sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook, in nf_ip6_checksum_partial() argument
108 return nf_ip6_checksum(skb, hook, dataoff, protocol); in nf_ip6_checksum_partial()
123 __sum16 nf_checksum(struct sk_buff *skb, unsigned int hook, in nf_checksum() argument
131 csum = nf_ip_checksum(skb, hook, dataoff, protocol); in nf_checksum()
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H A Dnfnetlink_hook.c58 u8 hook; member
211 ret = snprintf(sym, sizeof(sym), "%ps", ops->hook); in nfnl_hook_dump_one()
279 nfnl_hook_entries_head(u8 pf, unsigned int hook, struct net *net, const char *dev) in nfnl_hook_entries_head() argument
288 if (hook >= ARRAY_SIZE(net->nf.hooks_ipv4)) in nfnl_hook_entries_head()
290 hook_head = rcu_dereference(net->nf.hooks_ipv4[hook]); in nfnl_hook_entries_head()
293 if (hook >= ARRAY_SIZE(net->nf.hooks_ipv6)) in nfnl_hook_entries_head()
295 hook_head = rcu_dereference(net->nf.hooks_ipv6[hook]); in nfnl_hook_entries_head()
299 if (hook >= ARRAY_SIZE(net->nf.hooks_arp)) in nfnl_hook_entries_head()
301 hook_head = rcu_dereference(net->nf.hooks_arp[hook]); in nfnl_hook_entries_head()
306 if (hook >= ARRAY_SIZE(net->nf.hooks_bridge)) in nfnl_hook_entries_head()
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H A Dcore.c92 return NF_ACCEPT; /* ACCEPT makes nf_hook_slow call next hook */ in accept_all()
96 .hook = accept_all, in accept_all()
120 /* Restrict BPF hook type to force a unique priority, not in nf_hook_entries_grow()
125 * hook at same priority as a bpf one (we don't want to in nf_hook_entries_grow()
157 new->hooks[nhooks].hook = reg->hook; in nf_hook_entries_grow()
166 new->hooks[nhooks].hook = reg->hook; in nf_hook_entries_grow()
216 * __nf_hook_entries_try_shrink - try to shrink hook array
218 * @old -- current hook blo
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H A Dnft_reject_netdev.c30 int hook) in nft_reject_netdev_send_v4_tcp_reset() argument
34 nskb = nf_reject_skb_v4_tcp_reset(net, oldskb, dev, hook); in nft_reject_netdev_send_v4_tcp_reset()
44 int hook, u8 code) in nft_reject_netdev_send_v4_unreach() argument
48 nskb = nf_reject_skb_v4_unreach(net, oldskb, dev, hook, code); in nft_reject_netdev_send_v4_unreach()
58 int hook) in nft_reject_netdev_send_v6_tcp_reset() argument
62 nskb = nf_reject_skb_v6_tcp_reset(net, oldskb, dev, hook); in nft_reject_netdev_send_v6_tcp_reset()
73 int hook, u8 code) in nft_reject_netdev_send_v6_unreach() argument
77 nskb = nf_reject_skb_v6_unreach(net, oldskb, dev, hook, code); in nft_reject_netdev_send_v6_unreach()
H A Dnf_conntrack_pptp.c92 const struct nf_nat_pptp_hook *hook; in pptp_expectfn() local
103 hook = rcu_dereference(nf_nat_pptp_hook); in pptp_expectfn()
104 if (hook && ct->master->status & IPS_NAT_MASK) in pptp_expectfn()
105 hook->expectfn(ct, exp); in pptp_expectfn()
190 const struct nf_nat_pptp_hook *hook; in exp_gre() local
220 hook = rcu_dereference(nf_nat_pptp_hook); in exp_gre()
221 if (hook && ct->status & IPS_NAT_MASK) in exp_gre()
222 hook->exp_gre(exp_orig, exp_reply); in exp_gre()
260 const struct nf_nat_pptp_hook *hook; in pptp_inbound_pkt() local
364 hook = rcu_dereference(nf_nat_pptp_hook); in pptp_inbound_pkt()
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/linux/include/linux/
H A Dnetfilter.h79 u8 hook; member
103 nf_hookfn *hook; member
114 nf_hookfn *hook; member
128 /* trailer: pointers to original orig_ops of each hook,
133 * needed in slow path (hook register/unregister):
137 * only needed when a hook is deleted, not during
158 return entry->hook(entry->priv, skb, state); in nf_hook_entry_hookfn()
162 unsigned int hook, in nf_hook_state_init() argument
170 p->hook = hook; in nf_hook_state_init()
198 /* Function to register/unregister hook points. */
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H A Dlsm_hooks.h49 * @active: Enabled when the static call has an LSM hook associated.
60 * Table of the static calls for each LSM hook.
87 * Security module hook list structure.
91 * @scalls: The beginning of the array of static calls assigned to this hook.
92 * @hook: The callback for the hook.
93 * @lsm: The name of the lsm that owns this hook.
97 union security_list_options hook; member
136 #define LSM_HOOK_INIT(NAME, HOOK) \ argument
139 .hook = { .NAME = HOOK } \
/linux/tools/lib/bpf/
H A Dnetlink.c532 typedef int (*qdisc_config_t)(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook);
534 static int clsact_config(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook) in clsact_config()
542 static int qdisc_config(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook) in attach_point_to_config() argument
544 const char *qdisc = OPTS_GET(hook, qdisc, NULL); in attach_point_to_config()
546 req->tc.tcm_parent = OPTS_GET(hook, parent, TC_H_ROOT); in attach_point_to_config()
547 req->tc.tcm_handle = OPTS_GET(hook, handle, 0); in attach_point_to_config()
552 static int attach_point_to_config(struct bpf_tc_hook *hook, in attach_point_to_config()
555 switch (OPTS_GET(hook, attach_point, 0)) { in attach_point_to_config()
559 if (OPTS_GET(hook, parent, 0))
595 static int tc_qdisc_modify(struct bpf_tc_hook *hook, in in tc_qdisc_modify()
582 tc_qdisc_modify(struct bpf_tc_hook * hook,int cmd,int flags) tc_qdisc_modify() argument
606 tc_qdisc_create_excl(struct bpf_tc_hook * hook) tc_qdisc_create_excl() argument
611 tc_qdisc_delete(struct bpf_tc_hook * hook) tc_qdisc_delete() argument
616 bpf_tc_hook_create(struct bpf_tc_hook * hook) bpf_tc_hook_create() argument
632 bpf_tc_hook_destroy(struct bpf_tc_hook * hook) bpf_tc_hook_destroy() argument
718 bpf_tc_attach(const struct bpf_tc_hook * hook,struct bpf_tc_opts * opts) bpf_tc_attach() argument
792 __bpf_tc_detach(const struct bpf_tc_hook * hook,const struct bpf_tc_opts * opts,const bool flush) __bpf_tc_detach() argument
853 bpf_tc_detach(const struct bpf_tc_hook * hook,const struct bpf_tc_opts * opts) bpf_tc_detach() argument
865 bpf_tc_query(const struct bpf_tc_hook * hook,struct bpf_tc_opts * opts) bpf_tc_query() argument
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/linux/include/drm/
H A Ddrm_simple_kms_helper.h34 * This hook is used by the probe helpers to filter the mode list in
60 * This hook is optional.
70 * This hook is optional.
82 * This hook is optional.
98 * This hook is optional.
116 * the documentation for the &drm_plane_helper_funcs.prepare_fb hook for
119 * For GEM drivers who neither have a @prepare_fb nor @cleanup_fb hook
123 * their @prepare_fb hook.
132 * the documentation for the &drm_plane_helper_funcs.cleanup_fb hook for
142 * the documentation for the &drm_plane_helper_funcs.begin_fb_access hook for
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/linux/fs/xfs/
H A Dxfs_hooks.c23 /* Make it so a function gets called whenever we hit a certain hook point. */
27 struct xfs_hook *hook) in xfs_hooks_add() argument
29 ASSERT(hook->nb.notifier_call != NULL); in xfs_hooks_add()
32 return blocking_notifier_chain_register(&chain->head, &hook->nb); in xfs_hooks_add()
35 /* Remove a previously installed hook. */
39 struct xfs_hook *hook) in xfs_hooks_del() argument
41 blocking_notifier_chain_unregister(&chain->head, &hook->nb); in xfs_hooks_del()
44 /* Call a hook. Returns the NOTIFY_* value returned by the last hook. */
H A Dxfs_hooks.h37 typedef int (*xfs_hook_fn_t)(struct xfs_hook *hook, unsigned long action,
41 int xfs_hooks_add(struct xfs_hooks *chain, struct xfs_hook *hook);
42 void xfs_hooks_del(struct xfs_hooks *chain, struct xfs_hook *hook);
46 static inline void xfs_hook_setup(struct xfs_hook *hook, notifier_fn_t fn) in xfs_hook_setup() argument
48 hook->nb.notifier_call = fn; in xfs_hook_setup()
49 hook->nb.priority = 0; in xfs_hook_setup()
/linux/rust/proc-macro2/
H A Ddetection.rs34 // Swap in a null panic hook to avoid printing "thread panicked" to stderr,
41 // thread 1 calls take_hook, gets the user's original hook
42 // thread 1 calls set_hook with the null hook
43 // thread 2 calls take_hook, thinks null hook is the original hook
44 // thread 2 calls set_hook with the null hook
45 // thread 1 calls set_hook with the actual original hook
46 // thread 2 calls set_hook with what it thinks is the original hook
48 // in which the user's hook has been lost.
51 // happen during the interval that the user's original panic hook is
52 // unregistered such that their hook is incorrectly not called. This is
/linux/net/ipv4/netfilter/
H A Dipt_REJECT.c34 int hook = xt_hooknum(par); in reject_tg() local
38 nf_send_unreach(skb, ICMP_NET_UNREACH, hook); in reject_tg()
41 nf_send_unreach(skb, ICMP_HOST_UNREACH, hook); in reject_tg()
44 nf_send_unreach(skb, ICMP_PROT_UNREACH, hook); in reject_tg()
47 nf_send_unreach(skb, ICMP_PORT_UNREACH, hook); in reject_tg()
50 nf_send_unreach(skb, ICMP_NET_ANO, hook); in reject_tg()
53 nf_send_unreach(skb, ICMP_HOST_ANO, hook); in reject_tg()
56 nf_send_unreach(skb, ICMP_PKT_FILTERED, hook); in reject_tg()
59 nf_send_reset(xt_net(par), par->state->sk, skb, hook); in reject_tg()
/linux/security/ipe/
H A Dhooks.c19 * ipe_bprm_check_security() - ipe security hook function for bprm check.
23 * This LSM hook is called when a binary is loaded through the exec
39 * ipe_bprm_creds_for_exec() - ipe security hook function for bprm creds check.
43 * This LSM hook is called when userspace signals the kernel to check a file
45 * The hook triggers IPE policy evaluation on the script file and returns
66 * ipe_mmap_file() - ipe security hook function for mmap check.
73 * This hook is called when a file is loaded through the mmap
94 * ipe_file_mprotect() - ipe security hook function for mprotect check.
100 * This LSM hook is called when a mmap'd region of memory is changing
126 * ipe_kernel_read_file() - ipe security hook function for kernel read.
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/linux/security/integrity/ima/
H A Dima.h49 /* bitset of digests algorithms allowed in the setxattr hook */
313 #define __ima_hooks(hook) \
314 hook(NONE, none) \
315 hook(FILE_CHECK, file) \
316 hook(MMAP_CHECK, mmap) \
317 hook(MMAP_CHECK_REQPROT, mmap_reqprot) \
318 hook(BPRM_CHECK, bprm) \
319 hook(CREDS_CHECK, creds) \
320 hook(POST_SETATTR, post_setattr) \
321 hook(MODULE_CHEC
307 __ima_hooks(hook) global() argument
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/linux/security/selinux/
H A Dxfrm.c5 * This file contains the SELinux XFRM hook function implementations.
145 * LSM hook implementation that authorizes that a flow can use a xfrm policy
167 * LSM hook implementation that authorizes that a state matches
253 * LSM hook implementation that checks and/or returns the xfrm sid for the
277 * LSM hook implementation that allocs and transfers uctx spec to xfrm_policy.
287 * LSM hook implementation that copies security data structure from old to new
309 * LSM hook implementation that frees xfrm_sec_ctx security information.
317 * LSM hook implementation that authorizes deletion of labeled policies.
325 * LSM hook implementation that allocates a xfrm_sec_state, populates it using
335 * LSM hook implementation that allocates a xfrm_sec_state and populates based
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/linux/include/uapi/linux/netfilter/
H A Dnfnetlink_hook.h11 * enum nfnl_hook_attributes - netfilter hook netlink attributes
13 * @NFNLA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
14 * @NFNLA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
16 * @NFNLA_HOOK_FUNCTION_NAME: hook function name (NLA_STRING)
17 * @NFNLA_HOOK_MODULE_NAME: kernel module that registered this hook (NLA_STRING)
18 * @NFNLA_HOOK_CHAIN_INFO: basechain hook metadata (NLA_NESTED)
/linux/tools/testing/selftests/net/netfilter/
H A Dnft_queue.sh97 type filter hook prerouting priority $prio; policy accept;
101 type filter hook input priority $prio; policy accept;
105 type filter hook forward priority $prio; policy accept;
110 type filter hook output priority $prio; policy accept;
116 type filter hook postrouting priority $prio; policy accept;
129 type filter hook prerouting priority $prio; policy accept;
133 type filter hook input priority $prio; policy accept;
137 type filter hook forward priority $prio; policy accept;
141 type filter hook output priority $prio; policy accept;
145 type filter hook postroutin
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/linux/include/acpi/
H A Dbattery.h16 int (*add_battery)(struct power_supply *battery, struct acpi_battery_hook *hook);
17 int (*remove_battery)(struct power_supply *battery, struct acpi_battery_hook *hook);
21 void battery_hook_register(struct acpi_battery_hook *hook);
22 void battery_hook_unregister(struct acpi_battery_hook *hook);
23 int devm_battery_hook_register(struct device *dev, struct acpi_battery_hook *hook);
/linux/drivers/gpu/drm/
H A Ddrm_atomic_state_helper.c89 * hook.
108 * drm_atomic_helper_crtc_reset - default &drm_crtc_funcs.reset hook for CRTCs
164 * drm_atomic_helper_crtc_duplicate_state - default state duplicate hook
167 * Default CRTC state duplicate hook for drivers which don't have their own
223 * drm_atomic_helper_crtc_destroy_state - default state destroy hook
227 * Default CRTC state destroy hook for drivers which don't have their own
309 * hook.
324 * drm_atomic_helper_plane_reset - default &drm_plane_funcs.reset hook for planes
366 * drm_atomic_helper_plane_duplicate_state - default state duplicate hook
369 * Default plane state duplicate hook for drivers which don't have their own
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/linux/sound/core/
H A Dvmaster.c36 void (*hook)(void *private_data, int); member
124 if (master->hook) in master_init()
125 master->hook(master->hook_private_data, master->val); in master_init()
380 if (master->hook && !first_init) in master_put()
381 master->hook(master->hook_private_data, master->val); in master_put()
466 * snd_ctl_add_vmaster_hook - Add a hook to a vmaster control
468 * @hook: the hook function
471 * Adds the given hook to the vmaster control element so that it's called
477 void (*hook)(void *private_data, int), in snd_ctl_add_vmaster_hook()
481 master->hook = hook; in snd_ctl_add_vmaster_hook()
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/linux/net/bridge/netfilter/
H A Dnft_reject_bridge.c48 int hook) in nft_reject_br_send_v4_tcp_reset() argument
52 nskb = nf_reject_skb_v4_tcp_reset(net, oldskb, NULL, hook); in nft_reject_br_send_v4_tcp_reset()
64 int hook, u8 code) in nft_reject_br_send_v4_unreach() argument
68 nskb = nf_reject_skb_v4_unreach(net, oldskb, NULL, hook, code); in nft_reject_br_send_v4_unreach()
80 int hook) in nft_reject_br_send_v6_tcp_reset() argument
84 nskb = nf_reject_skb_v6_tcp_reset(net, oldskb, NULL, hook); in nft_reject_br_send_v6_tcp_reset()
97 int hook, u8 code) in nft_reject_br_send_v6_unreach() argument
101 nskb = nf_reject_skb_v6_unreach(net, oldskb, NULL, hook, code); in nft_reject_br_send_v6_unreach()
/linux/security/
H A Dsecurity.c39 * security_locked_down() LSM hook. Placing this array here allows
86 #define SECURITY_HOOK_ACTIVE_KEY(HOOK, IDX) security_hook_active_##HOOK##_##IDX argument
90 * HOOK is an LSM hook as defined in linux/lsm_hookdefs.h
93 #define LSM_STATIC_CALL(HOOK, IDX) lsm_static_call_##HOOK##_##IDX argument
96 * Call the macro M for each LSM hook MAX_LSM_COUNT times.
113 * Define static calls and static keys for each LSM hook.
127 * Initialise a table of static calls for each LSM hook.
413 * The default value of the LSM hook is defined in linux/lsm_hook_defs.h and
419 * LSM hook.
432 * Hook list operation macros.
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