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flow: Helper to create sockets based on flowside

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We have upcoming use cases where it's useful to create new bound socket
based on information from the flow table.  Add flowside_sock_l4() to do
this for either PIF_HOST or PIF_SPLICE sockets.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2024-07-18 15:26:41 +10:00 • committed by Stefano Brivio
parent 2faf6fcd8b
commit 781164e25b
4 changed files with 102 additions and 3 deletions

3
util.h
View file

@ -144,6 +144,9 @@ struct ctx;
/* cppcheck-suppress funcArgNamesDifferent */
__attribute__ ((weak)) int ffsl(long int i) { return __builtin_ffsl(i); }
int sock_l4_sa(const struct ctx *c, enum epoll_type type,
const void *sa, socklen_t sl,
const char *ifname, bool v6only, uint32_t data);
int sock_l4(const struct ctx *c, sa_family_t af, enum epoll_type type,
const void *bind_addr, const char *ifname, uint16_t port,
uint32_t data);