From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- fs/smb/client/netlink.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 fs/smb/client/netlink.c (limited to 'fs/smb/client/netlink.c') diff --git a/fs/smb/client/netlink.c b/fs/smb/client/netlink.c new file mode 100644 index 0000000000..147d940925 --- /dev/null +++ b/fs/smb/client/netlink.c @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Netlink routines for CIFS + * + * Copyright (c) 2020 Samuel Cabrero + */ + +#include +#include + +#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__); + } +} -- cgit v1.2.3