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[Qemu-devel] [PULL 13/17] tap-bsd: Convert tap_open() to Error
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL 13/17] tap-bsd: Convert tap_open() to Error |
Date: |
Wed, 27 May 2015 11:03:04 +0100 |
From: Markus Armbruster <address@hidden>
Fixes inappropriate use of stderr in monitor command handler.
While there, improve some of the messages a bit.
Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
net/tap-bsd.c | 33 ++++++++++++++-------------------
1 file changed, 14 insertions(+), 19 deletions(-)
diff --git a/net/tap-bsd.c b/net/tap-bsd.c
index bbbe446..5889920 100644
--- a/net/tap-bsd.c
+++ b/net/tap-bsd.c
@@ -37,7 +37,6 @@
int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
int vnet_hdr_required, int mq_required, Error **errp)
{
- /* FIXME error_setg(errp, ...) on failure */
int fd;
#ifdef TAPGIFNAME
struct ifreq ifr;
@@ -72,23 +71,19 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
}
}
if (fd < 0) {
- error_report("warning: could not open %s (%s): no virtual network
emulation",
- dname, strerror(errno));
+ error_setg_errno(errp, errno, "could not open %s", dname);
return -1;
}
#ifdef TAPGIFNAME
if (ioctl(fd, TAPGIFNAME, (void *)&ifr) < 0) {
- fprintf(stderr, "warning: could not get tap name: %s\n",
- strerror(errno));
+ error_setg_errno(errp, errno, "could not get tap name");
return -1;
}
pstrcpy(ifname, ifname_size, ifr.ifr_name);
#else
if (fstat(fd, &s) < 0) {
- fprintf(stderr,
- "warning: could not stat /dev/tap: no virtual network emulation:
%s\n",
- strerror(errno));
+ error_setg_errno(errp, errno, "could not stat %s", dname);
return -1;
}
dev = devname(s.st_rdev, S_IFCHR);
@@ -100,8 +95,8 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
*vnet_hdr = 0;
if (vnet_hdr_required && !*vnet_hdr) {
- error_report("vnet_hdr=1 requested, but no kernel "
- "support for IFF_VNET_HDR available");
+ error_setg(errp, "vnet_hdr=1 requested, but no kernel "
+ "support for IFF_VNET_HDR available");
close(fd);
return -1;
}
@@ -117,13 +112,12 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
int vnet_hdr_required, int mq_required, Error **errp)
{
- /* FIXME error_setg(errp, ...) on failure */
int fd, s, ret;
struct ifreq ifr;
TFR(fd = open(PATH_NET_TAP, O_RDWR));
if (fd < 0) {
- error_report("could not open %s: %s", PATH_NET_TAP, strerror(errno));
+ error_setg_errno(errp, errno, "could not open %s", PATH_NET_TAP);
return -1;
}
@@ -131,7 +125,7 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
ret = ioctl(fd, TAPGIFNAME, (void *)&ifr);
if (ret < 0) {
- error_report("could not get tap interface name");
+ error_setg_errno(errp, errno, "could not get tap interface name");
goto error;
}
@@ -139,14 +133,15 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
/* User requested the interface to have a specific name */
s = socket(AF_LOCAL, SOCK_DGRAM, 0);
if (s < 0) {
- error_report("could not open socket to set interface name");
+ error_setg_errno(errp, errno,
+ "could not open socket to set interface name");
goto error;
}
ifr.ifr_data = ifname;
ret = ioctl(s, SIOCSIFNAME, (void *)&ifr);
close(s);
if (ret < 0) {
- error_report("could not set tap interface name");
+ error_setg(errp, "could not set tap interface name");
goto error;
}
} else {
@@ -158,14 +153,14 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
*vnet_hdr = 0;
if (vnet_hdr_required && !*vnet_hdr) {
- error_report("vnet_hdr=1 requested, but no kernel "
- "support for IFF_VNET_HDR available");
+ error_setg(errp, "vnet_hdr=1 requested, but no kernel "
+ "support for IFF_VNET_HDR available");
goto error;
}
}
if (mq_required) {
- error_report("mq_required requested, but not kernel support"
- "for IFF_MULTI_QUEUE available");
+ error_setg(errp, "mq_required requested, but no kernel support"
+ " for IFF_MULTI_QUEUE available");
goto error;
}
--
2.4.1
- [Qemu-devel] [PULL 04/17] net: Improve -net nic error reporting, (continued)
- [Qemu-devel] [PULL 04/17] net: Improve -net nic error reporting, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 05/17] net/dump: Improve -net/host_net_add dump error reporting, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 03/17] net: Permit incremental conversion of init functions to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 06/17] tap: net_tap_fd_init() can't fail, drop dead error handling, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 07/17] tap: Improve -netdev/netdev_add/-net/... bridge error reporting, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 10/17] tap: Convert launch_script() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 09/17] tap: Convert net_init_tap_one() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 08/17] tap: Convert tap_set_sndbuf() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 11/17] tap: Permit incremental conversion of tap_open() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 12/17] tap-linux: Convert tap_open() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 13/17] tap-bsd: Convert tap_open() to Error,
Stefan Hajnoczi <=
- [Qemu-devel] [PULL 15/17] tap: Finish conversion of tap_open() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 14/17] tap-solaris: Convert tap_open() to Error, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 16/17] tap: Improve -netdev/netdev_add/-net/... tap error reporting, Stefan Hajnoczi, 2015/05/27
- [Qemu-devel] [PULL 17/17] net/net: Record usage status of mac address, Stefan Hajnoczi, 2015/05/27
- Re: [Qemu-devel] [PULL 00/17] Net patches, Peter Maydell, 2015/05/28