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tpws: connect-bind-addr link local ifname delayed resolution

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This commit is contained in:
bol-van 2024-08-23 16:57:44 +03:00
parent e86fc2e7b5
commit 700de59241
3 changed files with 19 additions and 1 deletions
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1
tpws/params.h
View File

@ -74,6 +74,7 @@ struct params_s
struct sockaddr_in connect_bind4;
struct sockaddr_in6 connect_bind6;
char connect_bind6_ifname[IF_NAMESIZE];
int debug;

8
tpws/tpws.c
View File

@ -797,7 +797,13 @@ void parse_params(int argc, char *argv[])
else if (inet_pton(AF_INET6, optarg, &params.connect_bind6.sin6_addr))
{
params.connect_bind6.sin6_family = AF_INET6;
if (p && *p) params.connect_bind6.sin6_scope_id=if_nametoindex(p);
if (p && *p)
{
// copy interface name for delayed resolution
strncpy(params.connect_bind6_ifname,p,sizeof(params.connect_bind6_ifname));
params.connect_bind6_ifname[sizeof(params.connect_bind6_ifname)-1]=0;
}
}
else
{

11
tpws/tpws_conn.c
View File

@ -403,6 +403,17 @@ static int connect_remote(const struct sockaddr *remote_addr, bool bApplyConnect
}
else if(remote_addr->sa_family == params.connect_bind6.sin6_family)
{
if (*params.connect_bind6_ifname && !params.connect_bind6.sin6_scope_id)
{
params.connect_bind6.sin6_scope_id=if_nametoindex(params.connect_bind6_ifname);
if (!params.connect_bind6.sin6_scope_id)
{
fprintf(stderr, "interface name not found : %s\n", params.connect_bind6_ifname);
close(remote_fd);
return -1;
}
}
if (bind(remote_fd, (struct sockaddr *)&params.connect_bind6, sizeof(struct sockaddr_in6)) == -1)
{
perror("bind on connect");