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Allow remote-to-local forwardings to use IPv6.

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RFC 4245 section 7.1 specifies the meaning of the "address to bind"
parameter in a "tcpip-forward" request.  "0.0.0.0" and "127.0.0.1" are
specified to be all interfaces and the loopback interface respectively
in IPv4, while "" and "localhost" are the address-family-agnostic
equivalents.  Switch PuTTY to using the latter, since it doesn't seem
right to force IPv4.

There's an argument that PuTTY should provide a means of configuring the
address family used for remote forwardings like it does for local ones.

[originally from svn r9668]
This commit is contained in:
Ben Harris 2012-09-18 21:50:47 +00:00
parent d5836982e2
commit bc8f2193f6
1 changed files with 4 additions and 4 deletions
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8
ssh.c
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@ -4618,9 +4618,9 @@ static void ssh_setup_portfwd(Ssh ssh, Conf *conf)
/* XXX: rport_acceptall may not represent /* XXX: rport_acceptall may not represent
* what was used to open the original connection, * what was used to open the original connection,
* since it's reconfigurable. */ * since it's reconfigurable. */
ssh2_pkt_addstring(pktout, "0.0.0.0"); ssh2_pkt_addstring(pktout, "");
} else { } else {
ssh2_pkt_addstring(pktout, "127.0.0.1"); ssh2_pkt_addstring(pktout, "localhost");
} }
ssh2_pkt_adduint32(pktout, epf->sport); ssh2_pkt_adduint32(pktout, epf->sport);
ssh2_pkt_send(ssh, pktout); ssh2_pkt_send(ssh, pktout);
@ -4733,9 +4733,9 @@ static void ssh_setup_portfwd(Ssh ssh, Conf *conf)
if (epf->saddr) { if (epf->saddr) {
ssh2_pkt_addstring(pktout, epf->saddr); ssh2_pkt_addstring(pktout, epf->saddr);
} else if (conf_get_int(conf, CONF_rport_acceptall)) { } else if (conf_get_int(conf, CONF_rport_acceptall)) {
ssh2_pkt_addstring(pktout, "0.0.0.0"); ssh2_pkt_addstring(pktout, "");
} else { } else {
ssh2_pkt_addstring(pktout, "127.0.0.1"); ssh2_pkt_addstring(pktout, "localhost");
} }
ssh2_pkt_adduint32(pktout, epf->sport); ssh2_pkt_adduint32(pktout, epf->sport);
ssh2_pkt_send(ssh, pktout); ssh2_pkt_send(ssh, pktout);