90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Netlink routines for CIFS
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*
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* Copyright (c) 2020 Samuel Cabrero <scabrero@suse.de>
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*/
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#include <net/genetlink.h>
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#include <uapi/linux/cifs/cifs_netlink.h>
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#include "netlink.h"
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#include "cifsglob.h"
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#include "cifs_debug.h"
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#include "cifs_swn.h"
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static const struct nla_policy cifs_genl_policy[CIFS_GENL_ATTR_MAX + 1] = {
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[CIFS_GENL_ATTR_SWN_REGISTRATION_ID] = { .type = NLA_U32 },
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[CIFS_GENL_ATTR_SWN_NET_NAME] = { .type = NLA_STRING },
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[CIFS_GENL_ATTR_SWN_SHARE_NAME] = { .type = NLA_STRING },
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[CIFS_GENL_ATTR_SWN_IP] = { .len = sizeof(struct sockaddr_storage) },
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[CIFS_GENL_ATTR_SWN_NET_NAME_NOTIFY] = { .type = NLA_FLAG },
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[CIFS_GENL_ATTR_SWN_SHARE_NAME_NOTIFY] = { .type = NLA_FLAG },
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[CIFS_GENL_ATTR_SWN_IP_NOTIFY] = { .type = NLA_FLAG },
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[CIFS_GENL_ATTR_SWN_KRB_AUTH] = { .type = NLA_FLAG },
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[CIFS_GENL_ATTR_SWN_USER_NAME] = { .type = NLA_STRING },
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[CIFS_GENL_ATTR_SWN_PASSWORD] = { .type = NLA_STRING },
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[CIFS_GENL_ATTR_SWN_DOMAIN_NAME] = { .type = NLA_STRING },
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[CIFS_GENL_ATTR_SWN_NOTIFICATION_TYPE] = { .type = NLA_U32 },
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[CIFS_GENL_ATTR_SWN_RESOURCE_STATE] = { .type = NLA_U32 },
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[CIFS_GENL_ATTR_SWN_RESOURCE_NAME] = { .type = NLA_STRING},
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};
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static const struct genl_ops cifs_genl_ops[] = {
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{
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.cmd = CIFS_GENL_CMD_SWN_NOTIFY,
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.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
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.doit = cifs_swn_notify,
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},
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};
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static const struct genl_multicast_group cifs_genl_mcgrps[] = {
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[CIFS_GENL_MCGRP_SWN] = { .name = CIFS_GENL_MCGRP_SWN_NAME },
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};
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struct genl_family cifs_genl_family = {
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.name = CIFS_GENL_NAME,
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.version = CIFS_GENL_VERSION,
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.hdrsize = 0,
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.maxattr = CIFS_GENL_ATTR_MAX,
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.module = THIS_MODULE,
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.policy = cifs_genl_policy,
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.ops = cifs_genl_ops,
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.n_ops = ARRAY_SIZE(cifs_genl_ops),
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.mcgrps = cifs_genl_mcgrps,
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.n_mcgrps = ARRAY_SIZE(cifs_genl_mcgrps),
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};
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/**
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* cifs_genl_init - Register generic netlink family
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*
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* Return zero if initialized successfully, otherwise non-zero.
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*/
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int cifs_genl_init(void)
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{
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int ret;
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ret = genl_register_family(&cifs_genl_family);
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if (ret < 0) {
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cifs_dbg(VFS, "%s: failed to register netlink family\n",
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__func__);
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return ret;
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}
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return 0;
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}
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/**
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* cifs_genl_exit - Unregister generic netlink family
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*/
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void cifs_genl_exit(void)
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{
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int ret;
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ret = genl_unregister_family(&cifs_genl_family);
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if (ret < 0) {
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cifs_dbg(VFS, "%s: failed to unregister netlink family\n",
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__func__);
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}
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}
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