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