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[Qemu-devel] [PULL] slirp: Handle whole 127.0.0.0/8 network as local add
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PULL] slirp: Handle whole 127.0.0.0/8 network as local addresses. |
Date: |
Fri, 03 Aug 2012 23:43:47 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
The following changes since commit 0f66998ff6d5d2133b9b08471a44e13b11119e50:
vnc: disable VNC password authentication (security type 2) when in FIPS mode
(2012-08-03 14:28:40 -0500)
are available in the git repository at:
git://git.kiszka.org/qemu.git queues/slirp
Anders Waldenborg (1):
slirp: Handle whole 127.0.0.0/8 network as local addresses.
slirp/main.h | 1 +
slirp/slirp.c | 3 +++
slirp/tcp_subr.c | 7 +++++--
3 files changed, 9 insertions(+), 2 deletions(-)
---
slirp: Handle whole 127.0.0.0/8 network as local addresses.
Changes so translation of remote address to the host's ip address in
the virtual network happens for all addresses in the 127.0.0.0/8
network, not just 127.0.0.1.
This fixes so that hostfwd bound to addresses such as 127.0.0.2 works.
Signed-off-by: Anders Waldenborg <address@hidden>
Signed-off-by: Jan Kiszka <address@hidden>
---
slirp/main.h | 1 +
slirp/slirp.c | 3 +++
slirp/tcp_subr.c | 7 +++++--
3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/slirp/main.h b/slirp/main.h
index 028df4b..bf601e2 100644
--- a/slirp/main.h
+++ b/slirp/main.h
@@ -31,6 +31,7 @@ extern char *exec_shell;
extern u_int curtime;
extern fd_set *global_readfds, *global_writefds, *global_xfds;
extern struct in_addr loopback_addr;
+extern in_addr_t loopback_mask;
extern char *username;
extern char *socket_path;
extern int towrite_max;
diff --git a/slirp/slirp.c b/slirp/slirp.c
index 90473eb..9787104 100644
--- a/slirp/slirp.c
+++ b/slirp/slirp.c
@@ -29,6 +29,8 @@
/* host loopback address */
struct in_addr loopback_addr;
+/* host loopback network mask */
+in_addr_t loopback_mask;
/* emulated hosts use the MAC addr 52:55:IP:IP:IP:IP */
static const uint8_t special_ethaddr[ETH_ALEN] = {
@@ -191,6 +193,7 @@ static void slirp_init_once(void)
#endif
loopback_addr.s_addr = htonl(INADDR_LOOPBACK);
+ loopback_mask = htonl(IN_CLASSA_NET);
}
static void slirp_state_save(QEMUFile *f, void *opaque);
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c
index 0a545c4..025b374 100644
--- a/slirp/tcp_subr.c
+++ b/slirp/tcp_subr.c
@@ -435,8 +435,11 @@ tcp_connect(struct socket *inso)
so->so_fport = addr.sin_port;
so->so_faddr = addr.sin_addr;
/* Translate connections from localhost to the real hostname */
- if (so->so_faddr.s_addr == 0 || so->so_faddr.s_addr ==
loopback_addr.s_addr)
- so->so_faddr = slirp->vhost_addr;
+ if (so->so_faddr.s_addr == 0 ||
+ (so->so_faddr.s_addr & loopback_mask) ==
+ (loopback_addr.s_addr & loopback_mask)) {
+ so->so_faddr = slirp->vhost_addr;
+ }
/* Close the accept() socket, set right state */
if (inso->so_state & SS_FACCEPTONCE) {
--
1.7.3.4
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