bianbu-repo-mirror/bianbu-linux-6.6
1
0
Fork 0
mirror of https://gitee.com/bianbu-linux/linux-6.6 synced 2025-04-24 14:07:52 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

mptcp: Add a per-namespace sysctl to set the default path manager type

Browse source 
The new net.mptcp.pm_type sysctl determines which path manager will be
used by each newly-created MPTCP socket.

v2: Handle builds without CONFIG_SYSCTL
v3: Clarify logic for type-specific PM init (Geliang Tang and Paolo Abeni)

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Mat Martineau 2022-04-27 15:50:01 -07:00 • committed by Jakub Kicinski
parent 6961326e38
commit 6bb63ccc25
4 changed files with 63 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

21
net/mptcp/ctrl.c
View file

@ -16,6 +16,11 @@
#define MPTCP_SYSCTL_PATH "net/mptcp"
static int mptcp_pernet_id;
#ifdef CONFIG_SYSCTL
static int mptcp_pm_type_max = __MPTCP_PM_TYPE_MAX;
#endif
struct mptcp_pernet {
#ifdef CONFIG_SYSCTL
struct ctl_table_header *ctl_table_hdr;
@ -26,6 +31,7 @@ struct mptcp_pernet {
u8 mptcp_enabled;
u8 checksum_enabled;
u8 allow_join_initial_addr_port;
u8 pm_type;
};
static struct mptcp_pernet *mptcp_get_pernet(const struct net *net)
@ -58,6 +64,11 @@ unsigned int mptcp_stale_loss_cnt(const struct net *net)
return mptcp_get_pernet(net)->stale_loss_cnt;
}
int mptcp_get_pm_type(const struct net *net)
{
return mptcp_get_pernet(net)->pm_type;
}
static void mptcp_pernet_set_defaults(struct mptcp_pernet *pernet)
{
pernet->mptcp_enabled = 1;
@ -65,6 +76,7 @@ static void mptcp_pernet_set_defaults(struct mptcp_pernet *pernet)
pernet->checksum_enabled = 0;
pernet->allow_join_initial_addr_port = 1;
pernet->stale_loss_cnt = 4;
pernet->pm_type = MPTCP_PM_TYPE_KERNEL;
}
#ifdef CONFIG_SYSCTL
@ -108,6 +120,14 @@ static struct ctl_table mptcp_sysctl_table[] = {
.mode = 0644,
.proc_handler = proc_douintvec_minmax,
},
{
.procname = "pm_type",
.maxlen = sizeof(u8),
.mode = 0644,
.proc_handler = proc_dou8vec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = &mptcp_pm_type_max
},
{}
};
@ -128,6 +148,7 @@ static int mptcp_pernet_new_table(struct net *net, struct mptcp_pernet *pernet)
table[2].data = &pernet->checksum_enabled;
table[3].data = &pernet->allow_join_initial_addr_port;
table[4].data = &pernet->stale_loss_cnt;
table[5].data = &pernet->pm_type;
hdr = register_net_sysctl(net, MPTCP_SYSCTL_PATH, table);
if (!hdr)