xtends the ancilliary
messages supported by sendmsg to support the IP_ORIGDSTADDR ancilliary
message, reusing the same cmsg and struct used in recvmsg - which
already supports specifying a port.
Suggested-by: Jakub Sitnicki
Signed-off-by: Tiago Lam
---
include/net/ip.h | 1 +
net/ipv4/ip_
e can address them.
[1] https://blog.cloudflare.com/how-we-built-spectrum/
Suggested-by: Jakub Sitnicki
Signed-off-by: Tiago Lam
---
Tiago Lam (3):
ipv4: Run a reverse sk_lookup on sendmsg.
ipv6: Run a reverse sk_lookup on sendmsg.
bpf: Add sk_lookup test to use ORIGDS
from in a IP_ORIGDSTADDR ancilliary message passed in sendmsg.
Signed-off-by: Tiago Lam
---
tools/testing/selftests/bpf/prog_tests/sk_lookup.c | 70 +++---
1 file changed, 48 insertions(+), 22 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
b/tools
here to support the
IPV6_ORIGDSTADDR ancilliary message to be able to specify a source
address/port.
Suggested-by: Jakub Sitnicki
Signed-off-by: Tiago Lam
---
net/ipv6/datagram.c | 76 +
net/ipv6/udp.c | 8 --
2 files changed, 82
On Tue, Sep 24, 2024 at 04:58:19PM -0700, Martin KaFai Lau wrote:
> On 9/17/24 6:15 PM, Tiago Lam wrote:
> > On Fri, Sep 13, 2024 at 11:24:09AM -0700, Martin KaFai Lau wrote:
> > > On 9/13/24 2:39 AM, Tiago Lam wrote:
> > > > This follows the same rationale provided f
On Fri, Sep 13, 2024 at 08:10:24PM +0800, Philo Lu wrote:
> Hi Tiago,
>
> On 2024/9/13 17:39, Tiago Lam wrote:
> > This patch reuses the framework already in place for sk_lookup, allowing
> > it now to send a reply from the server fd directly, instead of having to
> > c
On Sat, Sep 14, 2024 at 01:40:25PM +0200, Eric Dumazet wrote:
> On Fri, Sep 13, 2024 at 11:39 AM Tiago Lam wrote:
> >
> > This follows the same rationale provided for the ipv4 counterpart, where
> > it now runs a reverse socket lookup when source addresses and/or ports
> &
On Sat, Sep 14, 2024 at 09:59:50AM +0100, Simon Horman wrote:
> On Fri, Sep 13, 2024 at 10:39:20AM +0100, Tiago Lam wrote:
> > This follows the same rationale provided for the ipv4 counterpart, where
> > it now runs a reverse socket lookup when source addresses and/or ports
>
On Fri, Sep 13, 2024 at 11:24:09AM -0700, Martin KaFai Lau wrote:
> On 9/13/24 2:39 AM, Tiago Lam wrote:
> > This follows the same rationale provided for the ipv4 counterpart, where
> > it now runs a reverse socket lookup when source addresses and/or ports
> > are changed,
On Wed, Sep 18, 2024 at 08:45:23AM -0400, Willem de Bruijn wrote:
> Tiago Lam wrote:
> > In order to check if egress traffic should be allowed through, we run a
> > reverse socket lookup (i.e. normal socket lookup with the src/dst
> > addresses and ports reversed) to check
ormance measurements are to be taken, but we're
reaching out early for feedback to see what the technical concerns are
and if we can address them.
[1] https://blog.cloudflare.com/how-we-built-spectrum/
Suggested-by: Jakub Sitnicki
Signed-off-by: Tiago Lam
---
Changes in v2:
- Amended commit
ebpf program
is attached and the source address and/or port for the return traffic
have been modified using the (newly added) IP_ORIGDSTADDR in sendmsg.
Suggested-by: Jakub Sitnicki
Signed-off-by: Tiago Lam
---
include/net/ip.h | 1 +
net/ipv4/ip_sockglue.c | 11 +++
net/ipv4/udp
from in a IP_ORIGDSTADDR ancillary message passed in sendmsg.
Signed-off-by: Tiago Lam
---
tools/testing/selftests/bpf/prog_tests/sk_lookup.c | 67 +++---
1 file changed, 45 insertions(+), 22 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
b/tools
-by: Tiago Lam
---
net/ipv6/datagram.c | 79 +
net/ipv6/udp.c | 8 --
2 files changed, 85 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index fff78496803d..369c64a478ec 100644
--- a/net/ipv6
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