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authorJohn Fastabend <john.fastabend@gmail.com>2018-02-05 19:17:43 +0100
committerDaniel Borkmann <daniel@iogearbox.net>2018-02-06 11:39:31 +0100
commitb11a632c442eef34a0afeba61fab923241f317e9 (patch)
tree3484798eba5ada6ed8bf5452debeadca96688c12 /include
parenttools/bpf: fix batch-mode test failure of test_xdp_redirect.sh (diff)
downloadlinux-b11a632c442eef34a0afeba61fab923241f317e9.tar.xz
linux-b11a632c442eef34a0afeba61fab923241f317e9.zip
net: add a UID to use for ULP socket assignment
Create a UID field and enum that can be used to assign ULPs to sockets. This saves a set of string comparisons if the ULP id is known. For sockmap, which is added in the next patches, a ULP is used to hook into TCP sockets close state. In this case the ULP being added is done at map insert time and the ULP is known and done on the kernel side. In this case the named lookup is not needed. Because we don't want to expose psock internals to user space socket options a user visible flag is also added. For TLS this is set for BPF it will be cleared. Alos remove pr_notice, user gets an error code back and should check that rather than rely on logs. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/tcp.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 58278669cc55..a58292d31e12 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1983,6 +1983,10 @@ enum hrtimer_restart tcp_pace_kick(struct hrtimer *timer);
#define TCP_ULP_MAX 128
#define TCP_ULP_BUF_MAX (TCP_ULP_NAME_MAX*TCP_ULP_MAX)
+enum {
+ TCP_ULP_TLS,
+};
+
struct tcp_ulp_ops {
struct list_head list;
@@ -1991,7 +1995,9 @@ struct tcp_ulp_ops {
/* cleanup ulp */
void (*release)(struct sock *sk);
+ int uid;
char name[TCP_ULP_NAME_MAX];
+ bool user_visible;
struct module *owner;
};
int tcp_register_ulp(struct tcp_ulp_ops *type);