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| author |   Amir Vadai <amir@vadai.me> | 2017-02-07 09:56:08 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-02-10 13:18:33 -0500 |
| commit | 853a14ba4682f820266469979c9297debc05f60c (patch) | |
| tree | 5475357c2342327746b5f99a67d46f4eb4ef78d3 /include/uapi/linux/tc_act | |
| parent | net/act_pedit: Support using offset relative to the conventional network headers (diff) | |
| download | linux-dev-853a14ba4682f820266469979c9297debc05f60c.tar.xz linux-dev-853a14ba4682f820266469979c9297debc05f60c.zip | |
net/act_pedit: Introduce 'add' operation
This command could be useful to inc/dec fields.
For example, to forward any TCP packet and decrease its TTL:
$ tc filter add dev enp0s9 protocol ip parent ffff: \
flower ip_proto tcp \
action pedit munge ip ttl add 0xff pipe \
action mirred egress redirect dev veth0
In the example above, adding 0xff to this u8 field is actually
decreasing it by one, since the operation is masked.
Signed-off-by: Amir Vadai <amir@vadai.me>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/tc_act')
| -rw-r--r-- | include/uapi/linux/tc_act/tc_pedit.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/tc_act/tc_pedit.h b/include/uapi/linux/tc_act/tc_pedit.h index 22f19eeda997..143d2b31a316 100644 --- a/include/uapi/linux/tc_act/tc_pedit.h +++ b/include/uapi/linux/tc_act/tc_pedit.h @@ -20,6 +20,7 @@ enum { enum { TCA_PEDIT_KEY_EX_HTYPE = 1, + TCA_PEDIT_KEY_EX_CMD = 2, __TCA_PEDIT_KEY_EX_MAX }; #define TCA_PEDIT_KEY_EX_MAX (__TCA_PEDIT_KEY_EX_MAX - 1) @@ -38,6 +39,13 @@ enum pedit_header_type { }; #define TCA_PEDIT_HDR_TYPE_MAX (__PEDIT_HDR_TYPE_MAX - 1) +enum pedit_cmd { + TCA_PEDIT_KEY_EX_CMD_SET = 0, + TCA_PEDIT_KEY_EX_CMD_ADD = 1, + __PEDIT_CMD_MAX, +}; +#define TCA_PEDIT_CMD_MAX (__PEDIT_CMD_MAX - 1) + struct tc_pedit_key { __u32 mask; /* AND */ __u32 val; /*XOR */ |