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slirp: generalize guestfwd with a callback based approach

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Instead of calling into QEMU chardev directly, and mixing it with
slirp_add_exec() handling, add a new function slirp_add_guestfwd()
which takes a write callback.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This commit is contained in:
Marc-André Lureau 2019-01-17 15:43:33 +04:00 • committed by Samuel Thibault
parent aaa0c642b1
commit 44b4ff2488
7 changed files with 74 additions and 31 deletions
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4
slirp/tcp_subr.c
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@ -964,9 +964,9 @@ int tcp_ctl(struct socket *so)
for (ex_ptr = slirp->guestfwd_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
if (ex_ptr->ex_fport == so->so_fport &&
so->so_faddr.s_addr == ex_ptr->ex_addr.s_addr) {
if (ex_ptr->ex_chardev) {
if (ex_ptr->write_cb) {
so->s = -1;
so->chardev = ex_ptr->ex_chardev;
so->guestfwd = ex_ptr;
return 1;
}
DEBUG_MISC(" executing %s", ex_ptr->ex_exec);