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netdevsim: shared UDP tunnel port table support

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Add the ability to simulate a device with a shared UDP tunnel port
table.

Try to reject the configurations and actions which are not supported
by the core, so we don't get syzcaller etc. warning reports.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2020-09-25 17:56:42 -07:00
committed by David S. Miller
parent 860e9d328f
commit dc9c07537c
2 changed files with 22 additions and 2 deletions
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7
drivers/net/netdevsim/netdevsim.h
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@@ -20,6 +20,7 @@
#include <linux/netdevice.h>
#include <linux/u64_stats_sync.h>
#include <net/devlink.h>
#include <net/udp_tunnel.h>
#include <net/xdp.h>
#define DRV_NAME "netdevsim"
@@ -84,7 +85,8 @@ struct netdevsim {
struct {
u32 inject_error;
u32 sleep;
u32 ports[2][NSIM_UDP_TUNNEL_N_PORTS];
u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
u32 (*ports)[NSIM_UDP_TUNNEL_N_PORTS];
struct debugfs_u32_array dfs_ports[2];
} udp_ports;
@@ -209,9 +211,12 @@ struct nsim_dev {
bool fail_trap_policer_set;
bool fail_trap_policer_counter_get;
struct {
struct udp_tunnel_nic_shared utn_shared;
u32 __ports[2][NSIM_UDP_TUNNEL_N_PORTS];
bool sync_all;
bool open_only;
bool ipv4_only;
bool shared;
u32 sleep;
} udp_ports;
};