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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
176 ret = snprintf(sym, sizeof(sym), "%ps", ops->hook); in nfnl_hook_dump_one()
241 nfnl_hook_entries_head(u8 pf, unsigned int hook, struct net *net, const char *dev) in nfnl_hook_entries_head() argument
250 if (hook >= ARRAY_SIZE(net->nf.hooks_ipv4)) in nfnl_hook_entries_head()
252 hook_head = rcu_dereference(net->nf.hooks_ipv4[hook]); in nfnl_hook_entries_head()
255 if (hook >= ARRAY_SIZE(net->nf.hooks_ipv6)) in nfnl_hook_entries_head()
257 hook_head = rcu_dereference(net->nf.hooks_ipv6[hook]); in nfnl_hook_entries_head()
261 if (hook >= ARRAY_SIZE(net->nf.hooks_arp)) in nfnl_hook_entries_head()
263 hook_head = rcu_dereference(net->nf.hooks_arp[hook]); in nfnl_hook_entries_head()
268 if (hook >= ARRAY_SIZE(net->nf.hooks_bridge)) in nfnl_hook_entries_head()
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H A Dcore.c95 return NF_ACCEPT; /* ACCEPT makes nf_hook_slow call next hook */ in accept_all()
99 .hook = accept_all,
123 /* Restrict BPF hook type to force a unique priority, not in nf_hook_entries_grow()
128 * hook at same priority as a bpf one (we don't want to in nf_hook_entries_grow()
160 new->hooks[nhooks].hook = reg->hook; in nf_hook_entries_grow()
169 new->hooks[nhooks].hook = reg->hook; in nf_hook_entries_grow()
219 * __nf_hook_entries_try_shrink - try to shrink hook array
221 * @old -- current hook blob at @pp
222 * @pp -- location of hook blob
224 * Hook unregistration must always succeed, so to-be-removed hooks
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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()
/linux/include/linux/
H A Dnetfilter.h79 u8 hook; member
99 nf_hookfn *hook; member
110 nf_hookfn *hook; member
124 /* trailer: pointers to original orig_ops of each hook,
129 * needed in slow path (hook register/unregister):
133 * only needed when a hook is deleted, not during
154 return entry->hook(entry->priv, skb, state); in nf_hook_entry_hookfn()
158 unsigned int hook, in nf_hook_state_init() argument
166 p->hook = hook; in nf_hook_state_init()
194 /* 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
133 #define LSM_HOOK_INIT(NAME, HOOK) \ argument
136 .hook = { .NAME = HOOK } \
/linux/tools/lib/bpf/
H A Dnetlink.c542 static int attach_point_to_config(struct bpf_tc_hook *hook, in attach_point_to_config() argument
545 switch (OPTS_GET(hook, attach_point, 0)) { in attach_point_to_config()
549 if (OPTS_GET(hook, parent, 0)) in attach_point_to_config()
582 static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags) in tc_qdisc_modify() argument
588 ret = attach_point_to_config(hook, &config); in tc_qdisc_modify()
597 req.tc.tcm_ifindex = OPTS_GET(hook, ifindex, 0); in tc_qdisc_modify()
606 static int tc_qdisc_create_excl(struct bpf_tc_hook *hook) in tc_qdisc_create_excl() argument
608 return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL); in tc_qdisc_create_excl()
611 static int tc_qdisc_delete(struct bpf_tc_hook *hook) in tc_qdisc_delete() argument
613 return tc_qdisc_modify(hook, RTM_DELQDISC, 0); in tc_qdisc_delete()
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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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H A Ddrm_modeset_helper_vtables.h76 * DRM_MODE_DPMS_OFF if the @disable hook isn't used.
79 * also support using this hook for enabling and disabling a CRTC to
91 * @dpms hook with DRM_MODE_DPMS_OFF.
94 * also support using this hook for disabling a CRTC to facilitate
105 * drivers ended up implementing this by calling their @dpms hook with
109 * also support using this hook for enabling a CRTC to facilitate
126 * This hook is used by the probe helpers to filter the mode list in
225 * should not use this hook. This is because the helper library calls
226 * this hook only once per mode change and not every time the display
280 * &drm_encoder_helper_funcs.disable hook. If that sequence is too
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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/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()
H A Dnf_reject_ipv4.c42 int hook) in nf_reject_skb_v4_tcp_reset() argument
52 oth = nf_reject_ip_tcphdr_get(oldskb, &_oth, hook); in nf_reject_skb_v4_tcp_reset()
77 int hook, u8 code) in nf_reject_skb_v4_unreach() argument
108 nf_ip_checksum(oldskb, hook, ip_hdrlen(oldskb), proto)) in nf_reject_skb_v4_unreach()
140 struct tcphdr *_oth, int hook) in nf_reject_ip_tcphdr_get() argument
161 if (nf_ip_checksum(oldskb, hook, ip_hdrlen(oldskb), IPPROTO_TCP)) in nf_reject_ip_tcphdr_get()
240 int hook) in nf_send_reset() argument
246 oth = nf_reject_ip_tcphdr_get(oldskb, &_oth, hook); in nf_send_reset()
250 if ((hook == NF_INET_PRE_ROUTING || hook == NF_INET_INGRESS) && in nf_send_reset()
315 void nf_send_unreach(struct sk_buff *skb_in, int code, int hook) in nf_send_unreach() argument
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/linux/security/integrity/ima/
H A Dima.h49 /* bitset of digests algorithms allowed in the setxattr hook */
306 #define __ima_hooks(hook) \ argument
307 hook(NONE, none) \
308 hook(FILE_CHECK, file) \
309 hook(MMAP_CHECK, mmap) \
310 hook(MMAP_CHECK_REQPROT, mmap_reqprot) \
311 hook(BPRM_CHECK, bprm) \
312 hook(CREDS_CHECK, creds) \
313 hook(POST_SETATTR, post_setattr) \
314 hook(MODULE_CHECK, module) \
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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/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_mmap_file() - ipe security hook function for mmap check.
46 * This hook is called when a file is loaded through the mmap
67 * ipe_file_mprotect() - ipe security hook function for mprotect check.
73 * This LSM hook is called when a mmap'd region of memory is changing
99 * ipe_kernel_read_file() - ipe security hook function for kernel read.
104 * This LSM hook is called when a file is read from disk in the kernel.
145 * ipe_kernel_load_data() - ipe security hook function for kernel load data.
149 * This LSM hook is called when a data buffer provided by userspace is loading
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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.sh95 type filter hook prerouting priority $prio; policy accept;
99 type filter hook input priority $prio; policy accept;
103 type filter hook forward priority $prio; policy accept;
108 type filter hook output priority $prio; policy accept;
114 type filter hook postrouting priority $prio; policy accept;
127 type filter hook prerouting priority $prio; policy accept;
131 type filter hook input priority $prio; policy accept;
135 type filter hook forward priority $prio; policy accept;
139 type filter hook output priority $prio; policy accept;
143 type filter hook postrouting priority $prio; policy accept;
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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/net/ipv6/netfilter/
H A Dnf_reject_ipv6.c15 static bool nf_reject_v6_csum_ok(struct sk_buff *skb, int hook) in nf_reject_v6_csum_ok() argument
37 return nf_ip6_checksum(skb, hook, thoff, proto) == 0; in nf_reject_v6_csum_ok()
62 int hook) in nf_reject_skb_v6_tcp_reset() argument
73 oth = nf_reject_ip6_tcphdr_get(oldskb, &_oth, &otcplen, hook); in nf_reject_skb_v6_tcp_reset()
97 int hook, u8 code) in nf_reject_skb_v6_unreach() argument
115 if (!nf_reject_v6_csum_ok(oldskb, hook)) in nf_reject_skb_v6_unreach()
151 unsigned int *otcplen, int hook) in nf_reject_ip6_tcphdr_get() argument
188 if (nf_ip6_checksum(oldskb, hook, tcphoff, IPPROTO_TCP)) { in nf_reject_ip6_tcphdr_get()
269 int hook) in nf_send_reset6() argument
285 otcph = nf_reject_ip6_tcphdr_get(oldskb, &_otcph, &otcplen, hook); in nf_send_reset6()
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/linux/include/net/netfilter/ipv4/
H A Dnf_reject.h10 void nf_send_unreach(struct sk_buff *skb_in, int code, int hook);
12 int hook);
14 struct tcphdr *_oth, int hook);
24 int hook, u8 code);
28 int hook);
/linux/drivers/gpu/drm/
H A Ddrm_atomic_state_helper.c88 * hook.
107 * drm_atomic_helper_crtc_reset - default &drm_crtc_funcs.reset hook for CRTCs
163 * drm_atomic_helper_crtc_duplicate_state - default state duplicate hook
166 * Default CRTC state duplicate hook for drivers which don't have their own
222 * drm_atomic_helper_crtc_destroy_state - default state destroy hook
226 * Default CRTC state destroy hook for drivers which don't have their own
303 * hook.
318 * drm_atomic_helper_plane_reset - default &drm_plane_funcs.reset hook for planes
360 * drm_atomic_helper_plane_duplicate_state - default state duplicate hook
363 * 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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