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/linux/net/netfilter/
H A Dnfnetlink_cthelper.c35 struct nf_conntrack_helper helper; member
45 struct nf_conntrack_helper *helper; in nfnl_userspace_cthelper() local
52 helper = rcu_dereference(help->helper); in nfnl_userspace_cthelper()
53 if (helper == NULL) in nfnl_userspace_cthelper()
56 /* This is a user-space helper not yet configured, skip. */ in nfnl_userspace_cthelper()
57 if ((helper->flags & in nfnl_userspace_cthelper()
62 /* If the user-space helper is not available, don't block traffic. */ in nfnl_userspace_cthelper()
63 return NF_QUEUE_NR(helper->queue_num) | NF_VERDICT_FLAG_QUEUE_BYPASS; in nfnl_userspace_cthelper()
99 const struct nf_conntrack_helper *helper; in nfnl_cthelper_from_nlattr() local
104 helper = rcu_dereference(help->helper); in nfnl_cthelper_from_nlattr()
[all …]
H A Dnf_conntrack_helper.c2 /* Helper handling for netfilter. */
85 if (request_module("nfct-helper-%s", name) == 0) { in nf_conntrack_helper_try_module_get()
106 void nf_conntrack_helper_put(struct nf_conntrack_helper *helper) in nf_conntrack_helper_put() argument
108 refcount_dec(&helper->refcnt); in nf_conntrack_helper_put()
109 module_put(helper->me); in nf_conntrack_helper_put()
165 void nf_nat_helper_put(struct nf_conntrack_helper *helper) in nf_nat_helper_put() argument
169 nat = nf_conntrack_nat_helper_find(helper->nat_mod_name); in nf_nat_helper_put()
186 pr_debug("failed to add helper extension area"); in nf_ct_helper_ext_add()
194 struct nf_conntrack_helper *helper = NULL; in __nf_ct_try_assign_helper() local
197 /* We already got a helper explicitly attached (e.g. nft_ct) */ in __nf_ct_try_assign_helper()
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H A Dnf_conntrack_ovs.c15 const struct nf_conntrack_helper *helper; in nf_ct_helper() local
27 helper = rcu_dereference(help->helper); in nf_ct_helper()
28 if (!helper) in nf_ct_helper()
31 if (helper->tuple.src.l3num != NFPROTO_UNSPEC && in nf_ct_helper()
32 helper->tuple.src.l3num != proto) in nf_ct_helper()
56 WARN_ONCE(1, "helper invoked on non-IP family!"); in nf_ct_helper()
60 if (helper->tuple.dst.protonum != proto) in nf_ct_helper()
63 err = helper->help(skb, protoff, ct, ctinfo); in nf_ct_helper()
67 /* Adjust seqs after helper. This is needed due to some helpers (e.g., in nf_ct_helper()
81 struct nf_conntrack_helper *helper; in nf_ct_add_helper() local
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H A Dxt_CT.c76 struct nf_conntrack_helper *helper; in xt_ct_set_helper() local
86 helper = nf_conntrack_helper_try_module_get(helper_name, par->family, in xt_ct_set_helper()
88 if (helper == NULL) { in xt_ct_set_helper()
89 pr_info_ratelimited("No such helper \"%s\"\n", helper_name); in xt_ct_set_helper()
95 nf_conntrack_helper_put(helper); in xt_ct_set_helper()
99 rcu_assign_pointer(help->helper, helper); in xt_ct_set_helper()
141 struct nf_conntrack_helper *helper; in xt_ct_put_helper() local
149 helper = rcu_dereference_raw(help->helper); in xt_ct_put_helper()
150 if (helper) in xt_ct_put_helper()
151 nf_conntrack_helper_put(helper); in xt_ct_put_helper()
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H A Dnf_conntrack_broadcast.c3 * broadcast connection tracking helper
23 const struct nf_conntrack_helper *helper; in nf_conntrack_broadcast_help() local
63 helper = rcu_dereference(help->helper); in nf_conntrack_broadcast_help()
64 if (helper) in nf_conntrack_broadcast_help()
65 exp->tuple.src.u.udp.port = helper->tuple.src.u.udp.port; in nf_conntrack_broadcast_help()
73 exp->helper = NULL; in nf_conntrack_broadcast_help()
85 MODULE_DESCRIPTION("Broadcast connection tracking helper");
H A Dxt_helper.c29 const struct nf_conntrack_helper *helper; in helper_mt() local
42 helper = rcu_dereference(master_help->helper); in helper_mt()
43 if (!helper) in helper_mt()
49 ret ^= !strncmp(helper->name, info->name, in helper_mt()
50 strlen(helper->name)); in helper_mt()
75 .name = "helper",
H A Dnf_conntrack_netbios_ns.c3 * NetBIOS name service broadcast connection tracking helper
8 * This helper tracks locally originating NetBIOS name service
27 MODULE_DESCRIPTION("NetBIOS name service broadcast connection tracking helper");
47 static struct nf_conntrack_helper helper __read_mostly = {
62 return nf_conntrack_helper_register(&helper); in nf_conntrack_netbios_ns_init()
67 nf_conntrack_helper_unregister(&helper); in nf_conntrack_netbios_ns_fini()
H A Dnf_conntrack_expect.c46 /* nf_conntrack_expect helper functions */
328 exp->helper = NULL; in nf_ct_expect_init()
389 struct nf_conntrack_helper *helper; in nf_ct_expect_insert() local
397 helper = rcu_dereference_protected(master_help->helper, in nf_ct_expect_insert()
399 if (helper) { in nf_ct_expect_insert()
401 helper->expect_policy[exp->class].timeout * HZ; in nf_ct_expect_insert()
439 struct nf_conntrack_helper *helper; in __nf_ct_expect_check() local
465 helper = rcu_dereference_protected(master_help->helper, in __nf_ct_expect_check()
467 if (helper) { in __nf_ct_expect_check()
468 p = &helper->expect_policy[expect->class]; in __nf_ct_expect_check()
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/linux/drivers/net/wireless/marvell/libertas/
H A Dfirmware.c16 const struct firmware *helper, const struct firmware *mainfw) in lbs_fw_loaded() argument
22 /* User must free helper/mainfw */ in lbs_fw_loaded()
23 priv->fw_callback(priv, ret, helper, mainfw); in lbs_fw_loaded()
79 /* No main firmware needed for this helper --> success! */ in helper_firmware_cb()
99 if (!iter->helper) { in load_next_firmware_from_table()
111 do_load_firmware(priv, iter->helper, helper_firmware_cb); in load_next_firmware_from_table()
121 * either a helper firmware and a main firmware (2-stage), or just the helper.
128 * terminated by an entry with a NULL helper name
164 * terminated by an entry with a NULL helper name
165 * @helper: On success, the helper firmware; caller must free
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/linux/arch/mips/cavium-octeon/executive/
H A DMakefile14 cvmx-helper-board.o cvmx-helper.o cvmx-helper-xaui.o \
15 cvmx-helper-rgmii.o cvmx-helper-sgmii.o cvmx-helper-npi.o \
16 cvmx-helper-loop.o cvmx-helper-spi.o cvmx-helper-util.o \
19 obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o cvmx-boot-vector.o
/linux/include/drm/
H A Ddrm_fb_helper.h6 * DRM framebuffer helper functions
69 * Driver callbacks used by the fbdev emulation helper library.
86 int (*fb_probe)(struct drm_fb_helper *helper,
101 int (*fb_dirty)(struct drm_fb_helper *helper, struct drm_clip_rect *clip);
108 * @funcs: driver callbacks for fb helper
150 * Top-level FBDEV helper lock. This protects all internal data
154 * protect all helper internal state with this lock as well as reduce
178 * If no outputs are connected (disconnected or unknown) the FB helper
191 * FB helper initialization. This needs to be tracked so that deferred
192 * FB helper setup can pass this on.
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/linux/tools/testing/selftests/bpf/progs/
H A Dverifier_helper_packet_access.c16 __description("helper access to packet: test1, valid packet_ptr range")
41 __description("helper access to packet: test2, unchecked packet_ptr")
59 __description("helper access to packet: test3, variable add")
89 __description("helper access to packet: test4, packet_ptr with bad range")
114 __description("helper access to packet: test5, packet_ptr with too short range")
138 __description("helper access to packet: test6, cls valid packet_ptr range")
163 __description("helper access to packet: test7, cls unchecked packet_ptr")
181 __description("helper access to packet: test8, cls variable add")
211 __description("helper access to packet: test9, cls packet_ptr with bad range")
236 __description("helper access to packet: test10, cls packet_ptr with too short range")
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H A Dverifier_helper_value_access.c42 __description("helper access to map: full range")
68 __description("helper access to map: partial range")
98 __description("helper access to map: empty range")
125 __description("helper access to map: possibly-empty ange")
154 __description("helper access to map: out-of-bound range")
180 __description("helper access to map: negative range")
205 __description("helper access to adjusted map (via const imm): full range")
233 __description("helper access to adjusted map (via const imm): partial range")
260 __description("helper access to adjusted map (via const imm): empty range")
286 __description("helper access to adjusted map (via const imm): out-of-bound range")
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H A Dverifier_helper_access_var_len.c35 __description("helper access to variable memory: stack, bitwise AND + JMP, correct bounds")
67 __description("helper access to variable memory: stack, bitwise AND, zero included")
87 /* Call bpf_ringbuf_output(), it is one of a few helper functions with\ in stack_bitwise_and_zero_included()
102 __description("helper access to variable memory: stack, bitwise AND + JMP, wrong max")
125 __description("helper access to variable memory: stack, JMP, correct bounds")
157 __description("helper access to variable memory: stack, JMP (signed), correct bounds")
189 __description("helper access to variable memory: stack, JMP, bounds + offset")
213 __description("helper access to variable memory: stack, JMP, wrong max")
236 __description("helper access to variable memory: stack, JMP, no max check")
260 __description("helper access to variable memory: stack, JMP, no min check")
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/linux/drivers/gpu/drm/
H A Ddrm_fb_helper.c6 * DRM framebuffer helper functions
86 * The fb helper functions are useful to provide an fbdev on top of a drm kernel
88 * helper functions used by many drivers to implement the kernel mode setting
95 * All other functions exported by the fb helper library can be used to
100 * helper must be called first to initialize the minimum required to make
105 * encoders and connectors. To finish up the fbdev helper initialization, the
137 * @info: fbdev registered by the helper
141 struct drm_fb_helper *helper = info->par; in drm_fb_helper_debug_enter() local
145 list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) { in drm_fb_helper_debug_enter()
146 mutex_lock(&helper->client.modeset_mutex); in drm_fb_helper_debug_enter()
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/linux/tools/testing/selftests/net/netfilter/
H A Dnft_conntrack_helper.sh3 # This tests connection tracking helper assignment:
4 # 1. can attach ftp helper to a connection from nft ruleset.
51 ct helper ftp {
56 tcp dport 2121 ct helper set "ftp"
60 tcp dport 2121 ct helper set "ftp"
79 …xec "$netns" conntrack -L -f $family -p tcp --dport "$port" 2> /dev/null |grep -q 'helper=ftp';then
81 echo "FAIL: ${netns} did not show attached helper $message" 1>&2
84 echo "PASS: ${netns} did not show attached helper $message" 1>&2
88 echo "PASS: ${netns} connection on port $port has ftp helper attached" 1>&2
90 echo "FAIL: ${netns} connection on port $port has ftp helper attached" 1>&2
/linux/Documentation/filesystems/
H A Dnetfs_library.rst4 Network Filesystem Helper Library
11 - Inode context helper functions.
13 - Read helper functions.
14 - Read helper structures.
15 - Read helper operations.
16 - Read helper procedure.
17 - Read helper cache API.
23 The network filesystem helper library is a set of functions designed to aid a
26 from the server. The helper library, however, can also interpose other
36 The network filesystem helper library needs a place to store a bit of state for
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/linux/include/linux/
H A Dmii.h93 * A small helper function for a common case. Returns one
111 * A small helper function that translates ethtool advertisement
139 * A small helper function that translates linkmode advertisement
167 * A small helper function that translates MII_ADVERTISE bits
194 * A small helper function that translates ethtool advertisement
214 * A small helper function that translates linkmode advertisement
237 * A small helper function that translates MII_CTRL1000
257 * A small helper function that translates MII_LPA
275 * A small helper function that translates MII_STAT1000
296 * A small helper function that translates MII_STAT1000 bits, when in
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/linux/drivers/net/ethernet/mellanox/mlx5/core/en/
H A Dtc_priv.h48 /* Helper struct for accessing a struct containing list_head array.
50 * |- Helper array
51 * [0] Helper item 0
54 * [1] Helper item 1
58 * 1. Get the helper item from the list_head item using
59 * helper item =
60 * container_of(list_head item, helper struct type, list_head field)
61 * 2. Get the contining struct from the helper item and its index in the array:
63 * container_of(helper item, containing struct type, helper field[index])
/linux/arch/mips/include/asm/octeon/
H A Dcvmx-helper.h30 * Helper functions for common, but complicated tasks.
64 #include <asm/octeon/cvmx-helper-errata.h>
65 #include <asm/octeon/cvmx-helper-loop.h>
66 #include <asm/octeon/cvmx-helper-npi.h>
67 #include <asm/octeon/cvmx-helper-rgmii.h>
68 #include <asm/octeon/cvmx-helper-sgmii.h>
69 #include <asm/octeon/cvmx-helper-spi.h>
70 #include <asm/octeon/cvmx-helper-util.h>
71 #include <asm/octeon/cvmx-helper-xaui.h>
/linux/drivers/media/v4l2-core/
H A Dv4l2-ctrls-api.c21 /* Internal temporary helper struct, one for each v4l2_ext_control */
35 * Helper functions to copy control payload data from kernel space to
39 /* Helper function: copy the given control value back to the caller */
69 /* Helper function: copy the current control value back to the caller */
75 /* Helper function: copy the new control value back to the caller */
82 /* Helper function: copy the request value back to the caller */
89 /* Helper function: copy the initial control value back to the caller */
97 /* Helper function: copy the caller-provider value as the new control value */
313 * control in this helper array belonging to the same in prepare_ext_ctrls()
334 /* First zero the helper field in the master control references */ in prepare_ext_ctrls()
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/linux/arch/um/os-Linux/
H A Dirq.c25 /* Helper to return an Epoll data pointer from an epoll event structure.
34 /* Helper to compare events versus the events in the epoll structure.
43 /* Helper to set the event mask.
67 * Helper to run the actual epoll_wait
90 * Helper to add a fd to epoll
108 * Helper to mod the fd event mask and/or data backreference
125 * Helper to delete the epoll fd
/linux/include/net/netfilter/
H A Dnf_conntrack_helper.h62 /* name of NAT helper module */
69 /* nf_conn feature for connections that have a helper */
71 /* Helper. if any */
72 struct nf_conntrack_helper __rcu *helper; member
79 /* private helper information. */
92 void nf_conntrack_helper_put(struct nf_conntrack_helper *helper);
94 void nf_ct_helper_init(struct nf_conntrack_helper *helper,
182 void nf_nat_helper_put(struct nf_conntrack_helper *helper);
/linux/include/uapi/linux/
H A Dbpf.h1255 * restrict map and helper usage for such programs. Sleepable BPF programs can
1733 * accessible through bpf_get_attach_cookie() BPF helper
1749 * accessible through bpf_get_attach_cookie() BPF helper
1833 * developers about the multiple available eBPF helper functions. It can be
1847 * Start of BPF helper function descriptions:
1870 * elements always exist), the helper would return an error.
1900 * This helper is a "printk()-like" facility for debugging. It
1907 * Each time the helper is called, it appends a line to the trace.
1943 * helper will return **-EINVAL** (but print nothing) if it
1949 * states that the helper should not be used "for production use"
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/linux/tools/include/uapi/linux/
H A Dbpf.h1255 * restrict map and helper usage for such programs. Sleepable BPF programs can
1733 * accessible through bpf_get_attach_cookie() BPF helper
1749 * accessible through bpf_get_attach_cookie() BPF helper
1833 * developers about the multiple available eBPF helper functions. It can be
1847 * Start of BPF helper function descriptions:
1870 * elements always exist), the helper would return an error.
1900 * This helper is a "printk()-like" facility for debugging. It
1907 * Each time the helper is called, it appends a line to the trace.
1943 * helper will return **-EINVAL** (but print nothing) if it
1949 * states that the helper should not be used "for production use"
[all …]

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