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linux/net/ncsi/ncsi-netlink.c
Johannes Berg 3b0f31f2b8 genetlink: make policy common to family 
Since maxattr is common, the policy can't really differ sanely,
so make it common as well.

The only user that did in fact manage to make a non-common policy
is taskstats, which has to be really careful about it (since it's
still using a common maxattr!). This is no longer supported, but
we can fake it using pre_doit.

This reduces the size of e.g. nl80211.o (which has lots of commands):

   text	   data	    bss	    dec	    hex	filename
 398745	  14323	   2240	 415308	  6564c	net/wireless/nl80211.o (before)
 397913	  14331	   2240	 414484	  65314	net/wireless/nl80211.o (after)
--------------------------------
   -832      +8       0    -824

Which is obviously just 8 bytes for each command, and an added 8
bytes for the new policy pointer. I'm not sure why the ops list is
counted as .text though.

Most of the code transformations were done using the following spatch:
    @ops@
    identifier OPS;
    expression POLICY;
    @@
    struct genl_ops OPS[] = {
    ...,
     {
    -	.policy = POLICY,
     },
    ...
    };

    @@
    identifier ops.OPS;
    expression ops.POLICY;
    identifier fam;
    expression M;
    @@
    struct genl_family fam = {
            .ops = OPS,
            .maxattr = M,
    +       .policy = POLICY,
            ...
    };

This also gets rid of devlink_nl_cmd_region_read_dumpit() accessing
the cb->data as ops, which we want to change in a later genl patch.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-22 10:38:23 -04:00

788 lines
18 KiB
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/*
* Copyright Samuel Mendoza-Jonas, IBM Corporation 2018.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/if_arp.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
#include <net/genetlink.h>
#include <net/ncsi.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <uapi/linux/ncsi.h>
#include "internal.h"
#include "ncsi-pkt.h"
#include "ncsi-netlink.h"
static struct genl_family ncsi_genl_family;
static const struct nla_policy ncsi_genl_policy[NCSI_ATTR_MAX + 1] = {
[NCSI_ATTR_IFINDEX] = { .type = NLA_U32 },
[NCSI_ATTR_PACKAGE_LIST] = { .type = NLA_NESTED },
[NCSI_ATTR_PACKAGE_ID] = { .type = NLA_U32 },
[NCSI_ATTR_CHANNEL_ID] = { .type = NLA_U32 },
[NCSI_ATTR_DATA] = { .type = NLA_BINARY, .len = 2048 },
[NCSI_ATTR_MULTI_FLAG] = { .type = NLA_FLAG },
[NCSI_ATTR_PACKAGE_MASK] = { .type = NLA_U32 },
[NCSI_ATTR_CHANNEL_MASK] = { .type = NLA_U32 },
};
static struct ncsi_dev_priv *ndp_from_ifindex(struct net *net, u32 ifindex)
{
struct ncsi_dev_priv *ndp;
struct net_device *dev;
struct ncsi_dev *nd;
struct ncsi_dev;
if (!net)
return NULL;
dev = dev_get_by_index(net, ifindex);
if (!dev) {
pr_err("NCSI netlink: No device for ifindex %u\n", ifindex);
return NULL;
}
nd = ncsi_find_dev(dev);
ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL;
dev_put(dev);
return ndp;
}
static int ncsi_write_channel_info(struct sk_buff *skb,
struct ncsi_dev_priv *ndp,
struct ncsi_channel *nc)
{
struct ncsi_channel_vlan_filter *ncf;
struct ncsi_channel_mode *m;
struct nlattr *vid_nest;
int i;
nla_put_u32(skb, NCSI_CHANNEL_ATTR_ID, nc->id);
m = &nc->modes[NCSI_MODE_LINK];
nla_put_u32(skb, NCSI_CHANNEL_ATTR_LINK_STATE, m->data[2]);
if (nc->state == NCSI_CHANNEL_ACTIVE)
nla_put_flag(skb, NCSI_CHANNEL_ATTR_ACTIVE);
if (nc == nc->package->preferred_channel)
nla_put_flag(skb, NCSI_CHANNEL_ATTR_FORCED);
nla_put_u32(skb, NCSI_CHANNEL_ATTR_VERSION_MAJOR, nc->version.version);
nla_put_u32(skb, NCSI_CHANNEL_ATTR_VERSION_MINOR, nc->version.alpha2);
nla_put_string(skb, NCSI_CHANNEL_ATTR_VERSION_STR, nc->version.fw_name);
vid_nest = nla_nest_start(skb, NCSI_CHANNEL_ATTR_VLAN_LIST);
if (!vid_nest)
return -ENOMEM;
ncf = &nc->vlan_filter;
i = -1;
while ((i = find_next_bit((void *)&ncf->bitmap, ncf->n_vids,
i + 1)) < ncf->n_vids) {
if (ncf->vids[i])
nla_put_u16(skb, NCSI_CHANNEL_ATTR_VLAN_ID,
ncf->vids[i]);
}
nla_nest_end(skb, vid_nest);
return 0;
}
static int ncsi_write_package_info(struct sk_buff *skb,
struct ncsi_dev_priv *ndp, unsigned int id)
{
struct nlattr *pnest, *cnest, *nest;
struct ncsi_package *np;
struct ncsi_channel *nc;
bool found;
int rc;
if (id > ndp->package_num - 1) {
netdev_info(ndp->ndev.dev, "NCSI: No package with id %u\n", id);
return -ENODEV;
}
found = false;
NCSI_FOR_EACH_PACKAGE(ndp, np) {
if (np->id != id)
continue;
pnest = nla_nest_start(skb, NCSI_PKG_ATTR);
if (!pnest)
return -ENOMEM;
nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
if ((0x1 << np->id) == ndp->package_whitelist)
nla_put_flag(skb, NCSI_PKG_ATTR_FORCED);
cnest = nla_nest_start(skb, NCSI_PKG_ATTR_CHANNEL_LIST);
if (!cnest) {
nla_nest_cancel(skb, pnest);
return -ENOMEM;
}
NCSI_FOR_EACH_CHANNEL(np, nc) {
nest = nla_nest_start(skb, NCSI_CHANNEL_ATTR);
if (!nest) {
nla_nest_cancel(skb, cnest);
nla_nest_cancel(skb, pnest);
return -ENOMEM;
}
rc = ncsi_write_channel_info(skb, ndp, nc);
if (rc) {
nla_nest_cancel(skb, nest);
nla_nest_cancel(skb, cnest);
nla_nest_cancel(skb, pnest);
return rc;
}
nla_nest_end(skb, nest);
}
nla_nest_end(skb, cnest);
nla_nest_end(skb, pnest);
found = true;
}
if (!found)
return -ENODEV;
return 0;
}
static int ncsi_pkg_info_nl(struct sk_buff *msg, struct genl_info *info)
{
struct ncsi_dev_priv *ndp;
unsigned int package_id;
struct sk_buff *skb;
struct nlattr *attr;
void *hdr;
int rc;
if (!info || !info->attrs)
return -EINVAL;
if (!info->attrs[NCSI_ATTR_IFINDEX])
return -EINVAL;
if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
return -EINVAL;
ndp = ndp_from_ifindex(genl_info_net(info),
nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
if (!ndp)
return -ENODEV;
skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!skb)
return -ENOMEM;
hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
&ncsi_genl_family, 0, NCSI_CMD_PKG_INFO);
if (!hdr) {
kfree_skb(skb);
return -EMSGSIZE;
}
package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
attr = nla_nest_start(skb, NCSI_ATTR_PACKAGE_LIST);
if (!attr) {
kfree_skb(skb);
return -EMSGSIZE;
}
rc = ncsi_write_package_info(skb, ndp, package_id);
if (rc) {
nla_nest_cancel(skb, attr);
goto err;
}
nla_nest_end(skb, attr);
genlmsg_end(skb, hdr);
return genlmsg_reply(skb, info);
err:
kfree_skb(skb);
return rc;
}
static int ncsi_pkg_info_all_nl(struct sk_buff *skb,
struct netlink_callback *cb)
{
struct nlattr *attrs[NCSI_ATTR_MAX + 1];
struct ncsi_package *np, *package;
struct ncsi_dev_priv *ndp;
unsigned int package_id;
struct nlattr *attr;
void *hdr;
int rc;
rc = genlmsg_parse(cb->nlh, &ncsi_genl_family, attrs, NCSI_ATTR_MAX,
ncsi_genl_policy, NULL);
if (rc)
return rc;
if (!attrs[NCSI_ATTR_IFINDEX])
return -EINVAL;
ndp = ndp_from_ifindex(get_net(sock_net(skb->sk)),
nla_get_u32(attrs[NCSI_ATTR_IFINDEX]));
if (!ndp)
return -ENODEV;
package_id = cb->args[0];
package = NULL;
NCSI_FOR_EACH_PACKAGE(ndp, np)
if (np->id == package_id)
package = np;
if (!package)
return 0; /* done */
hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
&ncsi_genl_family, NLM_F_MULTI, NCSI_CMD_PKG_INFO);
if (!hdr) {
rc = -EMSGSIZE;
goto err;
}
attr = nla_nest_start(skb, NCSI_ATTR_PACKAGE_LIST);
if (!attr) {
rc = -EMSGSIZE;
goto err;
}
rc = ncsi_write_package_info(skb, ndp, package->id);
if (rc) {
nla_nest_cancel(skb, attr);
goto err;
}
nla_nest_end(skb, attr);
genlmsg_end(skb, hdr);
cb->args[0] = package_id + 1;
return skb->len;
err:
genlmsg_cancel(skb, hdr);
return rc;
}
static int ncsi_set_interface_nl(struct sk_buff *msg, struct genl_info *info)
{
struct ncsi_package *np, *package;
struct ncsi_channel *nc, *channel;
u32 package_id, channel_id;
struct ncsi_dev_priv *ndp;
unsigned long flags;
if (!info || !info->attrs)
return -EINVAL;
if (!info->attrs[NCSI_ATTR_IFINDEX])
return -EINVAL;
if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
return -EINVAL;
ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
if (!ndp)
return -ENODEV;
package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
package = NULL;
NCSI_FOR_EACH_PACKAGE(ndp, np)
if (np->id == package_id)
package = np;
if (!package) {
/* The user has set a package that does not exist */
return -ERANGE;
}
channel = NULL;
if (info->attrs[NCSI_ATTR_CHANNEL_ID]) {
channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
NCSI_FOR_EACH_CHANNEL(package, nc)
if (nc->id == channel_id) {
channel = nc;
break;
}
if (!channel) {
netdev_info(ndp->ndev.dev,
"NCSI: Channel %u does not exist!\n",
channel_id);
return -ERANGE;
}
}
spin_lock_irqsave(&ndp->lock, flags);
ndp->package_whitelist = 0x1 << package->id;
ndp->multi_package = false;
spin_unlock_irqrestore(&ndp->lock, flags);
spin_lock_irqsave(&package->lock, flags);
package->multi_channel = false;
if (channel) {
package->channel_whitelist = 0x1 << channel->id;
package->preferred_channel = channel;
} else {
/* Allow any channel */
package->channel_whitelist = UINT_MAX;
package->preferred_channel = NULL;
}
spin_unlock_irqrestore(&package->lock, flags);
if (channel)
netdev_info(ndp->ndev.dev,
"Set package 0x%x, channel 0x%x as preferred\n",
package_id, channel_id);
else
netdev_info(ndp->ndev.dev, "Set package 0x%x as preferred\n",
package_id);
/* Update channel configuration */
if (!(ndp->flags & NCSI_DEV_RESET))
ncsi_reset_dev(&ndp->ndev);
return 0;
}
static int ncsi_clear_interface_nl(struct sk_buff *msg, struct genl_info *info)
{
struct ncsi_dev_priv *ndp;
struct ncsi_package *np;
unsigned long flags;
if (!info || !info->attrs)
return -EINVAL;
if (!info->attrs[NCSI_ATTR_IFINDEX])
return -EINVAL;
ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
if (!ndp)
return -ENODEV;
/* Reset any whitelists and disable multi mode */
spin_lock_irqsave(&ndp->lock, flags);
ndp->package_whitelist = UINT_MAX;
ndp->multi_package = false;
spin_unlock_irqrestore(&ndp->lock, flags);
NCSI_FOR_EACH_PACKAGE(ndp, np) {
spin_lock_irqsave(&np->lock, flags);
np->multi_channel = false;
np->channel_whitelist = UINT_MAX;
np->preferred_channel = NULL;
spin_unlock_irqrestore(&np->lock, flags);
}
netdev_info(ndp->ndev.dev, "NCSI: Cleared preferred package/channel\n");
/* Update channel configuration */
if (!(ndp->flags & NCSI_DEV_RESET))
ncsi_reset_dev(&ndp->ndev);
return 0;
}
static int ncsi_send_cmd_nl(struct sk_buff *msg, struct genl_info *info)
{
struct ncsi_dev_priv *ndp;
struct ncsi_pkt_hdr *hdr;
struct ncsi_cmd_arg nca;
unsigned char *data;
u32 package_id;
u32 channel_id;
int len, ret;
if (!info || !info->attrs) {
ret = -EINVAL;
goto out;
}
if (!info->attrs[NCSI_ATTR_IFINDEX]) {
ret = -EINVAL;
goto out;
}
if (!info->attrs[NCSI_ATTR_PACKAGE_ID]) {
ret = -EINVAL;
goto out;
}
if (!info->attrs[NCSI_ATTR_CHANNEL_ID]) {
ret = -EINVAL;
goto out;
}
if (!info->attrs[NCSI_ATTR_DATA]) {
ret = -EINVAL;
goto out;
}
ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
if (!ndp) {
ret = -ENODEV;
goto out;
}
package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
if (package_id >= NCSI_MAX_PACKAGE || channel_id >= NCSI_MAX_CHANNEL) {
ret = -ERANGE;
goto out_netlink;
}
len = nla_len(info->attrs[NCSI_ATTR_DATA]);
if (len < sizeof(struct ncsi_pkt_hdr)) {
netdev_info(ndp->ndev.dev, "NCSI: no command to send %u\n",
package_id);
ret = -EINVAL;
goto out_netlink;
} else {
data = (unsigned char *)nla_data(info->attrs[NCSI_ATTR_DATA]);
}
hdr = (struct ncsi_pkt_hdr *)data;
nca.ndp = ndp;
nca.package = (unsigned char)package_id;
nca.channel = (unsigned char)channel_id;
nca.type = hdr->type;
nca.req_flags = NCSI_REQ_FLAG_NETLINK_DRIVEN;
nca.info = info;
nca.payload = ntohs(hdr->length);
nca.data = data + sizeof(*hdr);
ret = ncsi_xmit_cmd(&nca);
out_netlink:
if (ret != 0) {
netdev_err(ndp->ndev.dev,
"NCSI: Error %d sending command\n",
ret);
ncsi_send_netlink_err(ndp->ndev.dev,
info->snd_seq,
info->snd_portid,
info->nlhdr,
ret);
}
out:
return ret;
}
int ncsi_send_netlink_rsp(struct ncsi_request *nr,
struct ncsi_package *np,
struct ncsi_channel *nc)
{
struct sk_buff *skb;
struct net *net;
void *hdr;
int rc;
net = dev_net(nr->rsp->dev);
skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
hdr = genlmsg_put(skb, nr->snd_portid, nr->snd_seq,
&ncsi_genl_family, 0, NCSI_CMD_SEND_CMD);
if (!hdr) {
kfree_skb(skb);
return -EMSGSIZE;
}
nla_put_u32(skb, NCSI_ATTR_IFINDEX, nr->rsp->dev->ifindex);
if (np)
nla_put_u32(skb, NCSI_ATTR_PACKAGE_ID, np->id);
if (nc)
nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, nc->id);
else
nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, NCSI_RESERVED_CHANNEL);
rc = nla_put(skb, NCSI_ATTR_DATA, nr->rsp->len, (void *)nr->rsp->data);
if (rc)
goto err;
genlmsg_end(skb, hdr);
return genlmsg_unicast(net, skb, nr->snd_portid);
err:
kfree_skb(skb);
return rc;
}
int ncsi_send_netlink_timeout(struct ncsi_request *nr,
struct ncsi_package *np,
struct ncsi_channel *nc)
{
struct sk_buff *skb;
struct net *net;
void *hdr;
skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
hdr = genlmsg_put(skb, nr->snd_portid, nr->snd_seq,
&ncsi_genl_family, 0, NCSI_CMD_SEND_CMD);
if (!hdr) {
kfree_skb(skb);
return -EMSGSIZE;
}
net = dev_net(nr->cmd->dev);
nla_put_u32(skb, NCSI_ATTR_IFINDEX, nr->cmd->dev->ifindex);
if (np)
nla_put_u32(skb, NCSI_ATTR_PACKAGE_ID, np->id);
else
nla_put_u32(skb, NCSI_ATTR_PACKAGE_ID,
NCSI_PACKAGE_INDEX((((struct ncsi_pkt_hdr *)
nr->cmd->data)->channel)));
if (nc)
nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, nc->id);
else
nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, NCSI_RESERVED_CHANNEL);
genlmsg_end(skb, hdr);
return genlmsg_unicast(net, skb, nr->snd_portid);
}
int ncsi_send_netlink_err(struct net_device *dev,
u32 snd_seq,
u32 snd_portid,
struct nlmsghdr *nlhdr,
int err)
{
struct nlmsghdr *nlh;
struct nlmsgerr *nle;
struct sk_buff *skb;
struct net *net;
skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
net = dev_net(dev);
nlh = nlmsg_put(skb, snd_portid, snd_seq,
NLMSG_ERROR, sizeof(*nle), 0);
nle = (struct nlmsgerr *)nlmsg_data(nlh);
nle->error = err;
memcpy(&nle->msg, nlhdr, sizeof(*nlh));
nlmsg_end(skb, nlh);
return nlmsg_unicast(net->genl_sock, skb, snd_portid);
}
static int ncsi_set_package_mask_nl(struct sk_buff *msg,
struct genl_info *info)
{
struct ncsi_dev_priv *ndp;
unsigned long flags;
int rc;
if (!info || !info->attrs)
return -EINVAL;
if (!info->attrs[NCSI_ATTR_IFINDEX])
return -EINVAL;
if (!info->attrs[NCSI_ATTR_PACKAGE_MASK])
return -EINVAL;
ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
if (!ndp)
return -ENODEV;
spin_lock_irqsave(&ndp->lock, flags);
if (nla_get_flag(info->attrs[NCSI_ATTR_MULTI_FLAG])) {
if (ndp->flags & NCSI_DEV_HWA) {
ndp->multi_package = true;
rc = 0;
} else {
netdev_err(ndp->ndev.dev,
"NCSI: Can't use multiple packages without HWA\n");
rc = -EPERM;
}
} else {
ndp->multi_package = false;
rc = 0;
}
if (!rc)
ndp->package_whitelist =
nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_MASK]);
spin_unlock_irqrestore(&ndp->lock, flags);
if (!rc) {
/* Update channel configuration */
if (!(ndp->flags & NCSI_DEV_RESET))
ncsi_reset_dev(&ndp->ndev);
}
return rc;
}
static int ncsi_set_channel_mask_nl(struct sk_buff *msg,
struct genl_info *info)
{
struct ncsi_package *np, *package;
struct ncsi_channel *nc, *channel;
u32 package_id, channel_id;
struct ncsi_dev_priv *ndp;
unsigned long flags;
if (!info || !info->attrs)
return -EINVAL;
if (!info->attrs[NCSI_ATTR_IFINDEX])
return -EINVAL;
if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
return -EINVAL;
if (!info->attrs[NCSI_ATTR_CHANNEL_MASK])
return -EINVAL;
ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
if (!ndp)
return -ENODEV;
package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
package = NULL;
NCSI_FOR_EACH_PACKAGE(ndp, np)
if (np->id == package_id) {
package = np;
break;
}
if (!package)
return -ERANGE;
spin_lock_irqsave(&package->lock, flags);
channel = NULL;
if (info->attrs[NCSI_ATTR_CHANNEL_ID]) {
channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
NCSI_FOR_EACH_CHANNEL(np, nc)
if (nc->id == channel_id) {
channel = nc;
break;
}
if (!channel) {
spin_unlock_irqrestore(&package->lock, flags);
return -ERANGE;
}
netdev_dbg(ndp->ndev.dev,
"NCSI: Channel %u set as preferred channel\n",
channel->id);
}
package->channel_whitelist =
nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_MASK]);
if (package->channel_whitelist == 0)
netdev_dbg(ndp->ndev.dev,
"NCSI: Package %u set to all channels disabled\n",
package->id);
package->preferred_channel = channel;
if (nla_get_flag(info->attrs[NCSI_ATTR_MULTI_FLAG])) {
package->multi_channel = true;
netdev_info(ndp->ndev.dev,
"NCSI: Multi-channel enabled on package %u\n",
package_id);
} else {
package->multi_channel = false;
}
spin_unlock_irqrestore(&package->lock, flags);
/* Update channel configuration */
if (!(ndp->flags & NCSI_DEV_RESET))
ncsi_reset_dev(&ndp->ndev);
return 0;
}
static const struct genl_ops ncsi_ops[] = {
{
.cmd = NCSI_CMD_PKG_INFO,
.doit = ncsi_pkg_info_nl,
.dumpit = ncsi_pkg_info_all_nl,
.flags = 0,
},
{
.cmd = NCSI_CMD_SET_INTERFACE,
.doit = ncsi_set_interface_nl,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NCSI_CMD_CLEAR_INTERFACE,
.doit = ncsi_clear_interface_nl,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NCSI_CMD_SEND_CMD,
.doit = ncsi_send_cmd_nl,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NCSI_CMD_SET_PACKAGE_MASK,
.doit = ncsi_set_package_mask_nl,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = NCSI_CMD_SET_CHANNEL_MASK,
.doit = ncsi_set_channel_mask_nl,
.flags = GENL_ADMIN_PERM,
},
};
static struct genl_family ncsi_genl_family __ro_after_init = {
.name = "NCSI",
.version = 0,
.maxattr = NCSI_ATTR_MAX,
.policy = ncsi_genl_policy,
.module = THIS_MODULE,
.ops = ncsi_ops,
.n_ops = ARRAY_SIZE(ncsi_ops),
};
int ncsi_init_netlink(struct net_device *dev)
{
int rc;
rc = genl_register_family(&ncsi_genl_family);
if (rc)
netdev_err(dev, "ncsi: failed to register netlink family\n");
return rc;
}
int ncsi_unregister_netlink(struct net_device *dev)
{
int rc;
rc = genl_unregister_family(&ncsi_genl_family);
if (rc)
netdev_err(dev, "ncsi: failed to unregister netlink family\n");
return rc;
}
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