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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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H A Dbpf_qdisc.c18 DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = LO_IFINDEX, in do_test()
26 err = bpf_tc_hook_create(&hook); in do_test()
47 bpf_tc_hook_destroy(&hook); in do_test()
84 DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, in test_qdisc_attach_to_mq()
100 hook.ifindex = if_nametoindex("veth0"); in test_qdisc_attach_to_mq()
103 err = bpf_tc_hook_create(&hook); in test_qdisc_attach_to_mq()
106 bpf_tc_hook_destroy(&hook); in test_qdisc_attach_to_mq()
115 DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = LO_IFINDEX, in test_qdisc_attach_to_non_root()
133 err = bpf_tc_hook_create(&hook); in test_qdisc_attach_to_non_root()
135 bpf_tc_hook_destroy(&hook); in test_qdisc_attach_to_non_root()
/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
133 #define LSM_HOOK_INIT(NAME, HOOK) \ argument
136 .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() argument
542 static int qdisc_config(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook) in qdisc_config() argument
544 const char *qdisc = OPTS_GET(hook, qdisc, NULL); in qdisc_config()
546 req->tc.tcm_parent = OPTS_GET(hook, parent, TC_H_ROOT); in qdisc_config()
547 req->tc.tcm_handle = OPTS_GET(hook, handle, 0); in qdisc_config()
552 static int attach_point_to_config(struct bpf_tc_hook *hook, in attach_point_to_config() argument
555 switch (OPTS_GET(hook, attach_point, 0)) { in attach_point_to_config()
559 if (OPTS_GET(hook, parent, 0)) in attach_point_to_config()
595 static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags) in tc_qdisc_modify() argument
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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/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/net/netfilter/
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 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 Dcore.c92 return NF_ACCEPT; /* ACCEPT makes nf_hook_slow call next hook */ in accept_all()
96 .hook = 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 blob at @pp
219 * @pp -- location of hook blob
221 * Hook unregistration must always succeed, so to-be-removed hooks
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/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/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/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/acpi/
H A Dbattery.c706 static void battery_hook_unregister_unlocked(struct acpi_battery_hook *hook) in battery_hook_unregister_unlocked() argument
711 * In order to remove a hook, we first need to in battery_hook_unregister_unlocked()
715 if (!hook->remove_battery(battery->bat, hook)) in battery_hook_unregister_unlocked()
718 list_del_init(&hook->list); in battery_hook_unregister_unlocked()
720 pr_info("hook unregistered: %s\n", hook->name); in battery_hook_unregister_unlocked()
723 void battery_hook_unregister(struct acpi_battery_hook *hook) in battery_hook_unregister() argument
728 * if a battery hook was previously unloaded due to an error when in battery_hook_unregister()
731 if (!list_empty(&hook->list)) in battery_hook_unregister()
732 battery_hook_unregister_unlocked(hook); in battery_hook_unregister()
738 void battery_hook_register(struct acpi_battery_hook *hook) in battery_hook_register() argument
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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) \ argument
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_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/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/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 postrouting priority $prio; policy accept;
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/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/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
304 * hook.
319 * drm_atomic_helper_plane_reset - default &drm_plane_funcs.reset hook for planes
361 * drm_atomic_helper_plane_duplicate_state - default state duplicate hook
364 * Default plane state duplicate hook for drivers which don't have their own
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