diff options
| author | Adrian Moreno <amorenoz@redhat.com> | 2024-07-04 11:56:52 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-07-06 03:45:46 +0300 |
| commit | 093b0f366567aa3fed85c316f832607069202b23 (patch) | |
| tree | 41e77bfea79f323c007f7389202d88fd4975a344 /net/psample | |
| parent | 064fbc4e9b5a6dbda7fe7b67dc7e9e95d31f8d75 (diff) | |
| download | linux-093b0f366567aa3fed85c316f832607069202b23.tar.xz | |
net: psample: add user cookie
Add a user cookie to the sample metadata so that sample emitters can
provide more contextual information to samples.
If present, send the user cookie in a new attribute:
PSAMPLE_ATTR_USER_COOKIE.
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Link: https://patch.msgid.link/20240704085710.353845-2-amorenoz@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/psample')
| -rw-r--r-- | net/psample/psample.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/psample/psample.c b/net/psample/psample.c index a5d9b8446f77..b37488f426bc 100644 --- a/net/psample/psample.c +++ b/net/psample/psample.c @@ -386,7 +386,9 @@ void psample_sample_packet(struct psample_group *group, struct sk_buff *skb, nla_total_size(sizeof(u32)) + /* group_num */ nla_total_size(sizeof(u32)) + /* seq */ nla_total_size_64bit(sizeof(u64)) + /* timestamp */ - nla_total_size(sizeof(u16)); /* protocol */ + nla_total_size(sizeof(u16)) + /* protocol */ + (md->user_cookie_len ? + nla_total_size(md->user_cookie_len) : 0); /* user cookie */ #ifdef CONFIG_INET tun_info = skb_tunnel_info(skb); @@ -486,6 +488,11 @@ void psample_sample_packet(struct psample_group *group, struct sk_buff *skb, } #endif + if (md->user_cookie && md->user_cookie_len && + nla_put(nl_skb, PSAMPLE_ATTR_USER_COOKIE, md->user_cookie_len, + md->user_cookie)) + goto error; + genlmsg_end(nl_skb, data); genlmsg_multicast_netns(&psample_nl_family, group->net, nl_skb, 0, PSAMPLE_NL_MCGRP_SAMPLE, GFP_ATOMIC); |