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generic: 6.6: revert genetlink: remove userhdr from struct genl_info

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coolsnowwolf 2024-03-15 14:24:06 +08:00
parent 5fea82cd1e
commit 3b5f54d82f
1 changed files with 279 additions and 0 deletions
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279
target/linux/generic/hack-6.6/998-revert-genetlink-remove-userhdr-from-struct-genl_inf.patch Normal file
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@ -0,0 +1,279 @@
From ca31fb1ed58c293b3f02b1aa46aa672866aff540 Mon Sep 17 00:00:00 2001
From: Marty Jones <mj8263788@gmail.com>
Date: Thu, 17 Aug 2023 17:06:55 -0400
Subject: [PATCH 7/8] Revert "genetlink: remove userhdr from struct genl_info"
This reverts commit bffcc6882a1bb2be8c9420184966f4c2c822078e.
---
drivers/block/drbd/drbd_nl.c | 9 ++++-----
include/net/genetlink.h | 7 ++-----
net/netlink/genetlink.c | 1 +
net/openvswitch/conntrack.c | 2 +-
net/openvswitch/datapath.c | 29 +++++++++++++----------------
net/openvswitch/meter.c | 10 +++++-----
net/tipc/netlink_compat.c | 2 +-
7 files changed, 27 insertions(+), 33 deletions(-)
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -159,7 +159,7 @@ static int drbd_msg_sprintf_info(struct
static int drbd_adm_prepare(struct drbd_config_context *adm_ctx,
struct sk_buff *skb, struct genl_info *info, unsigned flags)
{
- struct drbd_genlmsghdr *d_in = genl_info_userhdr(info);
+ struct drbd_genlmsghdr *d_in = info->userhdr;
const u8 cmd = info->genlhdr->cmd;
int err;
@@ -1396,9 +1396,8 @@ static void drbd_suspend_al(struct drbd_
static bool should_set_defaults(struct genl_info *info)
{
- struct drbd_genlmsghdr *dh = genl_info_userhdr(info);
-
- return 0 != (dh->flags & DRBD_GENL_F_SET_DEFAULTS);
+ unsigned flags = ((struct drbd_genlmsghdr*)info->userhdr)->flags;
+ return 0 != (flags & DRBD_GENL_F_SET_DEFAULTS);
}
static unsigned int drbd_al_extents_max(struct drbd_backing_dev *bdev)
@@ -4277,7 +4276,7 @@ static void device_to_info(struct device
int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_config_context adm_ctx;
- struct drbd_genlmsghdr *dh = genl_info_userhdr(info);
+ struct drbd_genlmsghdr *dh = info->userhdr;
enum drbd_ret_code retcode;
retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_RESOURCE);
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -96,6 +96,7 @@ struct genl_family {
* @family: generic netlink family
* @nlhdr: netlink message header
* @genlhdr: generic netlink message header
+ * @userhdr: user specific header
* @attrs: netlink attributes
* @_net: network namespace
* @user_ptr: user pointers
@@ -107,6 +108,7 @@ struct genl_info {
const struct genl_family *family;
const struct nlmsghdr * nlhdr;
struct genlmsghdr * genlhdr;
+ void * userhdr;
struct nlattr ** attrs;
possible_net_t _net;
void * user_ptr[2];
@@ -123,11 +125,6 @@ static inline void genl_info_net_set(str
write_pnet(&info->_net, net);
}
-static inline void *genl_info_userhdr(const struct genl_info *info)
-{
- return (u8 *)info->genlhdr + GENL_HDRLEN;
-}
-
#define GENL_SET_ERR_MSG(info, msg) NL_SET_ERR_MSG((info)->extack, msg)
#define GENL_SET_ERR_MSG_FMT(info, msg, args...) \
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -957,6 +957,7 @@ static int genl_family_rcv_msg_doit(cons
info.family = family;
info.nlhdr = nlh;
info.genlhdr = nlmsg_data(nlh);
+ info.userhdr = nlmsg_data(nlh) + GENL_HDRLEN;
info.attrs = attrbuf;
info.extack = extack;
genl_info_net_set(&info, net);
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -1605,7 +1605,7 @@ static struct sk_buff *
ovs_ct_limit_cmd_reply_start(struct genl_info *info, u8 cmd,
struct ovs_header **ovs_reply_header)
{
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct sk_buff *skb;
skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -590,7 +590,7 @@ out:
static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
{
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct net *net = sock_net(skb->sk);
struct nlattr **a = info->attrs;
struct sw_flow_actions *acts;
@@ -967,7 +967,7 @@ static int ovs_flow_cmd_new(struct sk_bu
{
struct net *net = sock_net(skb->sk);
struct nlattr **a = info->attrs;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct sw_flow *flow = NULL, *new_flow;
struct sw_flow_mask mask;
struct sk_buff *reply;
@@ -1214,7 +1214,7 @@ static int ovs_flow_cmd_set(struct sk_bu
{
struct net *net = sock_net(skb->sk);
struct nlattr **a = info->attrs;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct sw_flow_key key;
struct sw_flow *flow;
struct sk_buff *reply = NULL;
@@ -1315,7 +1315,7 @@ error:
static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct net *net = sock_net(skb->sk);
struct sw_flow_key key;
struct sk_buff *reply;
@@ -1374,7 +1374,7 @@ unlock:
static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct net *net = sock_net(skb->sk);
struct sw_flow_key key;
struct sk_buff *reply;
@@ -1642,7 +1642,7 @@ static void ovs_dp_reset_user_features(s
{
struct datapath *dp;
- dp = lookup_datapath(sock_net(skb->sk), genl_info_userhdr(info),
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr,
info->attrs);
if (IS_ERR(dp))
return;
@@ -1935,8 +1935,7 @@ static int ovs_dp_cmd_del(struct sk_buff
return -ENOMEM;
ovs_lock();
- dp = lookup_datapath(sock_net(skb->sk), genl_info_userhdr(info),
- info->attrs);
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
err = PTR_ERR(dp);
if (IS_ERR(dp))
goto err_unlock_free;
@@ -1969,8 +1968,7 @@ static int ovs_dp_cmd_set(struct sk_buff
return -ENOMEM;
ovs_lock();
- dp = lookup_datapath(sock_net(skb->sk), genl_info_userhdr(info),
- info->attrs);
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
err = PTR_ERR(dp);
if (IS_ERR(dp))
goto err_unlock_free;
@@ -2005,8 +2003,7 @@ static int ovs_dp_cmd_get(struct sk_buff
return -ENOMEM;
ovs_lock();
- dp = lookup_datapath(sock_net(skb->sk), genl_info_userhdr(info),
- info->attrs);
+ dp = lookup_datapath(sock_net(skb->sk), info->userhdr, info->attrs);
if (IS_ERR(dp)) {
err = PTR_ERR(dp);
goto err_unlock_free;
@@ -2249,7 +2246,7 @@ static void ovs_update_headroom(struct d
static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct vport_parms parms;
struct sk_buff *reply;
struct vport *vport;
@@ -2351,7 +2348,7 @@ static int ovs_vport_cmd_set(struct sk_b
return -ENOMEM;
ovs_lock();
- vport = lookup_vport(sock_net(skb->sk), genl_info_userhdr(info), a);
+ vport = lookup_vport(sock_net(skb->sk), info->userhdr, a);
err = PTR_ERR(vport);
if (IS_ERR(vport))
goto exit_unlock_free;
@@ -2407,7 +2404,7 @@ static int ovs_vport_cmd_del(struct sk_b
return -ENOMEM;
ovs_lock();
- vport = lookup_vport(sock_net(skb->sk), genl_info_userhdr(info), a);
+ vport = lookup_vport(sock_net(skb->sk), info->userhdr, a);
err = PTR_ERR(vport);
if (IS_ERR(vport))
goto exit_unlock_free;
@@ -2450,7 +2447,7 @@ exit_unlock_free:
static int ovs_vport_cmd_get(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr **a = info->attrs;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct sk_buff *reply;
struct vport *vport;
int err;
--- a/net/openvswitch/meter.c
+++ b/net/openvswitch/meter.c
@@ -211,7 +211,7 @@ ovs_meter_cmd_reply_start(struct genl_in
struct ovs_header **ovs_reply_header)
{
struct sk_buff *skb;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!skb)
@@ -272,7 +272,7 @@ error:
static int ovs_meter_cmd_features(struct sk_buff *skb, struct genl_info *info)
{
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct ovs_header *ovs_reply_header;
struct nlattr *nla, *band_nla;
struct sk_buff *reply;
@@ -409,7 +409,7 @@ static int ovs_meter_cmd_set(struct sk_b
struct dp_meter *meter, *old_meter;
struct sk_buff *reply;
struct ovs_header *ovs_reply_header;
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct dp_meter_table *meter_tbl;
struct datapath *dp;
int err;
@@ -482,7 +482,7 @@ exit_free_meter:
static int ovs_meter_cmd_get(struct sk_buff *skb, struct genl_info *info)
{
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct ovs_header *ovs_reply_header;
struct nlattr **a = info->attrs;
struct dp_meter *meter;
@@ -535,7 +535,7 @@ exit_unlock:
static int ovs_meter_cmd_del(struct sk_buff *skb, struct genl_info *info)
{
- struct ovs_header *ovs_header = genl_info_userhdr(info);
+ struct ovs_header *ovs_header = info->userhdr;
struct ovs_header *ovs_reply_header;
struct nlattr **a = info->attrs;
struct dp_meter *old_meter;
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -1294,7 +1294,7 @@ static int tipc_nl_compat_recv(struct sk
struct tipc_nl_compat_msg msg;
struct nlmsghdr *req_nlh;
struct nlmsghdr *rep_nlh;
- struct tipc_genlmsghdr *req_userhdr = genl_info_userhdr(info);
+ struct tipc_genlmsghdr *req_userhdr = info->userhdr;
memset(&msg, 0, sizeof(msg));