Lines Matching full:family
3 * NETLINK Generic Netlink Family
55 static void genl_op_lock(const struct genl_family *family) in genl_op_lock() argument
57 if (!family->parallel_ops) in genl_op_lock()
61 static void genl_op_unlock(const struct genl_family *family) in genl_op_unlock() argument
63 if (!family->parallel_ops) in genl_op_unlock()
82 * also abused this API and relied on family == group ID, we
83 * cater to that by giving it a static family and group ID.
99 static int genl_ctrl_event(int event, const struct genl_family *family,
104 genl_op_fill_in_reject_policy(const struct genl_family *family, in genl_op_fill_in_reject_policy() argument
109 if (op->policy || op->cmd < family->resv_start_op) in genl_op_fill_in_reject_policy()
117 genl_op_fill_in_reject_policy_split(const struct genl_family *family, in genl_op_fill_in_reject_policy_split() argument
134 const struct genl_family *family; in genl_family_find_byname() local
137 idr_for_each_entry(&genl_fam_idr, family, id) in genl_family_find_byname()
138 if (strcmp(family->name, name) == 0) in genl_family_find_byname()
139 return family; in genl_family_find_byname()
145 const struct genl_family *family; member
154 static void genl_op_from_full(const struct genl_family *family, in genl_op_from_full() argument
157 *op = family->ops[i]; in genl_op_from_full()
160 op->maxattr = family->maxattr; in genl_op_from_full()
162 op->policy = family->policy; in genl_op_from_full()
164 genl_op_fill_in_reject_policy(family, op); in genl_op_from_full()
167 static int genl_get_cmd_full(u32 cmd, const struct genl_family *family, in genl_get_cmd_full() argument
172 for (i = 0; i < family->n_ops; i++) in genl_get_cmd_full()
173 if (family->ops[i].cmd == cmd) { in genl_get_cmd_full()
174 genl_op_from_full(family, i, op); in genl_get_cmd_full()
181 static void genl_op_from_small(const struct genl_family *family, in genl_op_from_small() argument
185 op->doit = family->small_ops[i].doit; in genl_op_from_small()
186 op->dumpit = family->small_ops[i].dumpit; in genl_op_from_small()
187 op->cmd = family->small_ops[i].cmd; in genl_op_from_small()
188 op->internal_flags = family->small_ops[i].internal_flags; in genl_op_from_small()
189 op->flags = family->small_ops[i].flags; in genl_op_from_small()
190 op->validate = family->small_ops[i].validate; in genl_op_from_small()
192 op->maxattr = family->maxattr; in genl_op_from_small()
193 op->policy = family->policy; in genl_op_from_small()
195 genl_op_fill_in_reject_policy(family, op); in genl_op_from_small()
198 static int genl_get_cmd_small(u32 cmd, const struct genl_family *family, in genl_get_cmd_small() argument
203 for (i = 0; i < family->n_small_ops; i++) in genl_get_cmd_small()
204 if (family->small_ops[i].cmd == cmd) { in genl_get_cmd_small()
205 genl_op_from_small(family, i, op); in genl_get_cmd_small()
214 const struct genl_family *family = iter->family; in genl_op_from_split() local
217 i = iter->entry_idx - family->n_ops - family->n_small_ops; in genl_op_from_split()
219 if (family->split_ops[i + cnt].flags & GENL_CMD_CAP_DO) { in genl_op_from_split()
220 iter->doit = family->split_ops[i + cnt]; in genl_op_from_split()
221 genl_op_fill_in_reject_policy_split(family, &iter->doit); in genl_op_from_split()
227 if (i + cnt < family->n_split_ops && in genl_op_from_split()
228 family->split_ops[i + cnt].flags & GENL_CMD_CAP_DUMP && in genl_op_from_split()
229 (!cnt || family->split_ops[i + cnt].cmd == iter->doit.cmd)) { in genl_op_from_split()
230 iter->dumpit = family->split_ops[i + cnt]; in genl_op_from_split()
231 genl_op_fill_in_reject_policy_split(family, &iter->dumpit); in genl_op_from_split()
242 genl_get_cmd_split(u32 cmd, u8 flag, const struct genl_family *family, in genl_get_cmd_split() argument
247 for (i = 0; i < family->n_split_ops; i++) in genl_get_cmd_split()
248 if (family->split_ops[i].cmd == cmd && in genl_get_cmd_split()
249 family->split_ops[i].flags & flag) { in genl_get_cmd_split()
250 *op = family->split_ops[i]; in genl_get_cmd_split()
259 const struct genl_family *family, in genl_cmd_full_to_split() argument
273 op->pre_doit = family->pre_doit; in genl_cmd_full_to_split()
275 op->post_doit = family->post_doit; in genl_cmd_full_to_split()
300 genl_get_cmd(u32 cmd, u8 flags, const struct genl_family *family, in genl_get_cmd() argument
306 err = genl_get_cmd_full(cmd, family, &full); in genl_get_cmd()
308 err = genl_get_cmd_small(cmd, family, &full); in genl_get_cmd()
311 return genl_cmd_full_to_split(op, family, &full, flags); in genl_get_cmd()
313 err = genl_get_cmd_split(cmd, flags, family, op); in genl_get_cmd()
323 genl_get_cmd_both(u32 cmd, const struct genl_family *family, in genl_get_cmd_both() argument
328 err1 = genl_get_cmd(cmd, GENL_CMD_CAP_DO, family, doit); in genl_get_cmd_both()
329 err2 = genl_get_cmd(cmd, GENL_CMD_CAP_DUMP, family, dumpit); in genl_get_cmd_both()
335 genl_op_iter_init(const struct genl_family *family, struct genl_op_iter *iter) in genl_op_iter_init() argument
337 iter->family = family; in genl_op_iter_init()
343 return iter->family->n_ops + in genl_op_iter_init()
344 iter->family->n_small_ops + in genl_op_iter_init()
345 iter->family->n_split_ops; in genl_op_iter_init()
350 const struct genl_family *family = iter->family; in genl_op_iter_next() local
354 if (iter->entry_idx < family->n_ops) { in genl_op_iter_next()
355 genl_op_from_full(family, iter->entry_idx, &op); in genl_op_iter_next()
356 } else if (iter->entry_idx < family->n_ops + family->n_small_ops) { in genl_op_iter_next()
357 genl_op_from_small(family, iter->entry_idx - family->n_ops, in genl_op_iter_next()
360 family->n_ops + family->n_small_ops + family->n_split_ops) { in genl_op_iter_next()
373 genl_cmd_full_to_split(&iter->doit, family, in genl_op_iter_next()
375 genl_cmd_full_to_split(&iter->dumpit, family, in genl_op_iter_next()
458 static int genl_validate_assign_mc_groups(struct genl_family *family) in genl_validate_assign_mc_groups() argument
461 int n_groups = family->n_mcgrps; in genl_validate_assign_mc_groups()
469 const struct genl_multicast_group *grp = &family->mcgrps[i]; in genl_validate_assign_mc_groups()
478 if (family == &genl_ctrl) { in genl_validate_assign_mc_groups()
481 } else if (strcmp(family->name, "NET_DM") == 0) { in genl_validate_assign_mc_groups()
484 } else if (family->id == GENL_ID_VFS_DQUOT) { in genl_validate_assign_mc_groups()
487 } else if (family->id == GENL_ID_PMCRAID) { in genl_validate_assign_mc_groups()
497 family->mcgrp_offset = first_id; in genl_validate_assign_mc_groups()
503 if (family->netnsok) { in genl_validate_assign_mc_groups()
529 for (i = 0; i < family->n_mcgrps; i++) in genl_validate_assign_mc_groups()
530 clear_bit(family->mcgrp_offset + i, mc_groups); in genl_validate_assign_mc_groups()
536 static void genl_unregister_mc_groups(const struct genl_family *family) in genl_unregister_mc_groups() argument
544 for (i = 0; i < family->n_mcgrps; i++) in genl_unregister_mc_groups()
546 net->genl_sock, family->mcgrp_offset + i); in genl_unregister_mc_groups()
551 for (i = 0; i < family->n_mcgrps; i++) { in genl_unregister_mc_groups()
552 int grp_id = family->mcgrp_offset + i; in genl_unregister_mc_groups()
556 genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, family, in genl_unregister_mc_groups()
557 &family->mcgrps[i], grp_id); in genl_unregister_mc_groups()
569 static int genl_validate_ops(const struct genl_family *family) in genl_validate_ops() argument
574 if (WARN_ON(family->n_ops && !family->ops) || in genl_validate_ops()
575 WARN_ON(family->n_small_ops && !family->small_ops) || in genl_validate_ops()
576 WARN_ON(family->n_split_ops && !family->split_ops)) in genl_validate_ops()
579 for (genl_op_iter_init(family, &i); genl_op_iter_next(&i); ) { in genl_validate_ops()
583 if (WARN_ON(i.cmd >= family->resv_start_op && in genl_validate_ops()
594 if (family->n_split_ops) { in genl_validate_ops()
595 if (genl_split_op_check(&family->split_ops[0])) in genl_validate_ops()
599 for (s = 1; s < family->n_split_ops; s++) { in genl_validate_ops()
602 a = &family->split_ops[s - 1]; in genl_validate_ops()
603 b = &family->split_ops[s]; in genl_validate_ops()
634 static void *genl_sk_priv_alloc(struct genl_family *family) in genl_sk_priv_alloc() argument
638 priv = kzalloc(family->sock_priv_size, GFP_KERNEL); in genl_sk_priv_alloc()
642 if (family->sock_priv_init) in genl_sk_priv_alloc()
643 family->sock_priv_init(priv); in genl_sk_priv_alloc()
648 static void genl_sk_priv_free(const struct genl_family *family, void *priv) in genl_sk_priv_free() argument
650 if (family->sock_priv_destroy) in genl_sk_priv_free()
651 family->sock_priv_destroy(priv); in genl_sk_priv_free()
655 static int genl_sk_privs_alloc(struct genl_family *family) in genl_sk_privs_alloc() argument
657 if (!family->sock_priv_size) in genl_sk_privs_alloc()
660 family->sock_privs = kzalloc(sizeof(*family->sock_privs), GFP_KERNEL); in genl_sk_privs_alloc()
661 if (!family->sock_privs) in genl_sk_privs_alloc()
663 xa_init(family->sock_privs); in genl_sk_privs_alloc()
667 static void genl_sk_privs_free(const struct genl_family *family) in genl_sk_privs_free() argument
672 if (!family->sock_priv_size) in genl_sk_privs_free()
675 xa_for_each(family->sock_privs, id, priv) in genl_sk_privs_free()
676 genl_sk_priv_free(family, priv); in genl_sk_privs_free()
678 xa_destroy(family->sock_privs); in genl_sk_privs_free()
679 kfree(family->sock_privs); in genl_sk_privs_free()
682 static void genl_sk_priv_free_by_sock(struct genl_family *family, in genl_sk_priv_free_by_sock() argument
687 if (!family->sock_priv_size) in genl_sk_priv_free_by_sock()
689 priv = xa_erase(family->sock_privs, (unsigned long) sk); in genl_sk_priv_free_by_sock()
692 genl_sk_priv_free(family, priv); in genl_sk_priv_free_by_sock()
697 struct genl_family *family; in genl_release() local
702 idr_for_each_entry(&genl_fam_idr, family, id) in genl_release()
703 genl_sk_priv_free_by_sock(family, sk); in genl_release()
709 * __genl_sk_priv_get - Get family private pointer for socket, if exists
711 * @family: family
714 * Lookup a private memory for a Generic netlink family and specified socket.
721 void *__genl_sk_priv_get(struct genl_family *family, struct sock *sk) in __genl_sk_priv_get() argument
723 if (WARN_ON_ONCE(!family->sock_privs)) in __genl_sk_priv_get()
725 return xa_load(family->sock_privs, (unsigned long) sk); in __genl_sk_priv_get()
729 * genl_sk_priv_get - Get family private pointer for socket
731 * @family: family
734 * Lookup a private memory for a Generic netlink family and specified socket.
740 void *genl_sk_priv_get(struct genl_family *family, struct sock *sk) in genl_sk_priv_get() argument
744 priv = __genl_sk_priv_get(family, sk); in genl_sk_priv_get()
748 /* priv for the family does not exist so far, create it. */ in genl_sk_priv_get()
750 priv = genl_sk_priv_alloc(family); in genl_sk_priv_get()
754 old_priv = xa_cmpxchg(family->sock_privs, (unsigned long) sk, NULL, in genl_sk_priv_get()
757 genl_sk_priv_free(family, priv); in genl_sk_priv_get()
767 * genl_register_family - register a generic netlink family
768 * @family: generic netlink family
770 * Registers the specified family after validating it first. Only one
771 * family may be registered with the same family name or identifier.
773 * The family's ops, multicast groups and module pointer must already
778 int genl_register_family(struct genl_family *family) in genl_register_family() argument
783 err = genl_validate_ops(family); in genl_register_family()
789 if (genl_family_find_byname(family->name)) { in genl_register_family()
794 err = genl_sk_privs_alloc(family); in genl_register_family()
801 * and having used their family ID also as their in genl_register_family()
805 if (family == &genl_ctrl) { in genl_register_family()
806 /* and this needs to be special for initial family lookups */ in genl_register_family()
808 } else if (strcmp(family->name, "pmcraid") == 0) { in genl_register_family()
810 } else if (strcmp(family->name, "VFS_DQUOT") == 0) { in genl_register_family()
814 family->id = idr_alloc_cyclic(&genl_fam_idr, family, in genl_register_family()
816 if (family->id < 0) { in genl_register_family()
817 err = family->id; in genl_register_family()
821 err = genl_validate_assign_mc_groups(family); in genl_register_family()
828 genl_ctrl_event(CTRL_CMD_NEWFAMILY, family, NULL, 0); in genl_register_family()
829 for (i = 0; i < family->n_mcgrps; i++) in genl_register_family()
830 genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, family, in genl_register_family()
831 &family->mcgrps[i], family->mcgrp_offset + i); in genl_register_family()
836 idr_remove(&genl_fam_idr, family->id); in genl_register_family()
838 genl_sk_privs_free(family); in genl_register_family()
846 * genl_unregister_family - unregister generic netlink family
847 * @family: generic netlink family
849 * Unregisters the specified family.
853 int genl_unregister_family(const struct genl_family *family) in genl_unregister_family() argument
857 if (!genl_family_find_byid(family->id)) { in genl_unregister_family()
862 genl_unregister_mc_groups(family); in genl_unregister_family()
864 idr_remove(&genl_fam_idr, family->id); in genl_unregister_family()
870 genl_sk_privs_free(family); in genl_unregister_family()
874 genl_ctrl_event(CTRL_CMD_DELFAMILY, family, NULL, 0); in genl_unregister_family()
885 * @family: generic netlink family
892 const struct genl_family *family, int flags, u8 cmd) in genlmsg_put() argument
897 nlh = nlmsg_put(skb, portid, seq, family->id, GENL_HDRLEN + in genlmsg_put()
898 family->hdrsize, flags); in genlmsg_put()
904 hdr->version = family->version; in genlmsg_put()
922 genl_family_rcv_msg_attrs_parse(const struct genl_family *family, in genl_family_rcv_msg_attrs_parse() argument
958 const struct genl_family *family; member
978 attrs = genl_family_rcv_msg_attrs_parse(ctx->family, ctx->nlh, ctx->extack, in genl_start()
990 info->info.family = ctx->family; in genl_start()
1002 genl_op_lock(ctx->family); in genl_start()
1004 genl_op_unlock(ctx->family); in genl_start()
1024 genl_op_lock(info->family); in genl_dumpit()
1026 genl_op_unlock(info->family); in genl_dumpit()
1040 genl_op_lock(info->family); in genl_done()
1042 genl_op_unlock(info->family); in genl_done()
1049 static int genl_family_rcv_msg_dumpit(const struct genl_family *family, in genl_family_rcv_msg_dumpit() argument
1058 .module = family->module, in genl_family_rcv_msg_dumpit()
1067 ctx.family = family; in genl_family_rcv_msg_dumpit()
1073 genl_op_unlock(family); in genl_family_rcv_msg_dumpit()
1075 genl_op_lock(family); in genl_family_rcv_msg_dumpit()
1080 static int genl_family_rcv_msg_doit(const struct genl_family *family, in genl_family_rcv_msg_doit() argument
1091 attrbuf = genl_family_rcv_msg_attrs_parse(family, nlh, extack, in genl_family_rcv_msg_doit()
1099 info.family = family; in genl_family_rcv_msg_doit()
1124 static int genl_header_check(const struct genl_family *family, in genl_header_check() argument
1131 if (hdr->cmd < family->resv_start_op) in genl_header_check()
1154 static int genl_family_rcv_msg(const struct genl_family *family, in genl_family_rcv_msg() argument
1165 /* this family doesn't exist in this netns */ in genl_family_rcv_msg()
1166 if (!family->netnsok && !net_eq(net, &init_net)) in genl_family_rcv_msg()
1169 hdrlen = GENL_HDRLEN + family->hdrsize; in genl_family_rcv_msg()
1173 if (genl_header_check(family, nlh, hdr, extack)) in genl_family_rcv_msg()
1178 if (genl_get_cmd(hdr->cmd, flags, family, &op)) in genl_family_rcv_msg()
1190 return genl_family_rcv_msg_dumpit(family, skb, nlh, extack, in genl_family_rcv_msg()
1193 return genl_family_rcv_msg_doit(family, skb, nlh, extack, in genl_family_rcv_msg()
1200 const struct genl_family *family; in genl_rcv_msg() local
1203 family = genl_family_find_byid(nlh->nlmsg_type); in genl_rcv_msg()
1204 if (family == NULL) in genl_rcv_msg()
1207 genl_op_lock(family); in genl_rcv_msg()
1208 err = genl_family_rcv_msg(family, skb, nlh, extack); in genl_rcv_msg()
1209 genl_op_unlock(family); in genl_rcv_msg()
1227 static int ctrl_fill_info(const struct genl_family *family, u32 portid, u32 seq, in ctrl_fill_info() argument
1237 if (nla_put_string(skb, CTRL_ATTR_FAMILY_NAME, family->name) || in ctrl_fill_info()
1238 nla_put_u16(skb, CTRL_ATTR_FAMILY_ID, family->id) || in ctrl_fill_info()
1239 nla_put_u32(skb, CTRL_ATTR_VERSION, family->version) || in ctrl_fill_info()
1240 nla_put_u32(skb, CTRL_ATTR_HDRSIZE, family->hdrsize) || in ctrl_fill_info()
1241 nla_put_u32(skb, CTRL_ATTR_MAXATTR, family->maxattr)) in ctrl_fill_info()
1244 if (genl_op_iter_init(family, &i)) { in ctrl_fill_info()
1273 if (family->n_mcgrps) { in ctrl_fill_info()
1281 for (i = 0; i < family->n_mcgrps; i++) { in ctrl_fill_info()
1285 grp = &family->mcgrps[i]; in ctrl_fill_info()
1292 family->mcgrp_offset + i) || in ctrl_fill_info()
1310 static int ctrl_fill_mcgrp_info(const struct genl_family *family, in ctrl_fill_mcgrp_info() argument
1323 if (nla_put_string(skb, CTRL_ATTR_FAMILY_NAME, family->name) || in ctrl_fill_mcgrp_info()
1324 nla_put_u16(skb, CTRL_ATTR_FAMILY_ID, family->id)) in ctrl_fill_mcgrp_info()
1378 static struct sk_buff *ctrl_build_family_msg(const struct genl_family *family, in ctrl_build_family_msg() argument
1388 err = ctrl_fill_info(family, portid, seq, 0, skb, cmd); in ctrl_build_family_msg()
1398 ctrl_build_mcgrp_msg(const struct genl_family *family, in ctrl_build_mcgrp_msg() argument
1409 err = ctrl_fill_mcgrp_info(family, grp, grp_id, portid, in ctrl_build_mcgrp_msg()
1446 request_module("net-pf-%d-proto-%d-family-%s", in ctrl_getfamily()
1460 /* family doesn't exist here */ in ctrl_getfamily()
1472 static int genl_ctrl_event(int event, const struct genl_family *family, in genl_ctrl_event() argument
1486 msg = ctrl_build_family_msg(family, 0, 0, event); in genl_ctrl_event()
1491 msg = ctrl_build_mcgrp_msg(family, grp, grp_id, 0, 0, event); in genl_ctrl_event()
1500 if (!family->netnsok) { in genl_ctrl_event()
1814 const struct genl_family *family; in genl_bind() local
1820 idr_for_each_entry(&genl_fam_idr, family, id) { in genl_bind()
1824 if (family->n_mcgrps == 0) in genl_bind()
1827 i = group - family->mcgrp_offset; in genl_bind()
1828 if (i < 0 || i >= family->n_mcgrps) in genl_bind()
1831 grp = &family->mcgrps[i]; in genl_bind()
1935 int genlmsg_multicast_allns(const struct genl_family *family, in genlmsg_multicast_allns() argument
1939 if (WARN_ON_ONCE(group >= family->n_mcgrps)) in genlmsg_multicast_allns()
1942 group = family->mcgrp_offset + group; in genlmsg_multicast_allns()
1947 void genl_notify(const struct genl_family *family, struct sk_buff *skb, in genl_notify() argument
1953 if (WARN_ON_ONCE(group >= family->n_mcgrps)) in genl_notify()
1956 group = family->mcgrp_offset + group; in genl_notify()