* [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls @ 2011-04-14 5:24 Sasha Levin 2011-04-14 5:24 ` [PATCH 2/2 V2] kvm tools: Make host side IP configurable Sasha Levin 2011-04-14 12:35 ` [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls Asias He 0 siblings, 2 replies; 4+ messages in thread From: Sasha Levin @ 2011-04-14 5:24 UTC (permalink / raw) To: penberg, asias.hejun, gorcunov; +Cc: kvm, Sasha Levin Use ioctls to assign IP address and bring interface up instead of using ifconfig. Not breaking aliasing rules this time. Signed-off-by: Sasha Levin <levinsasha928@gmail.com> --- tools/kvm/virtio-net.c | 29 ++++++++++++++++++++++++++--- 1 files changed, 26 insertions(+), 3 deletions(-) diff --git a/tools/kvm/virtio-net.c b/tools/kvm/virtio-net.c index ec70d5c..622cfc6 100644 --- a/tools/kvm/virtio-net.c +++ b/tools/kvm/virtio-net.c @@ -14,6 +14,9 @@ #include <sys/ioctl.h> #include <assert.h> #include <fcntl.h> +#include <arpa/inet.h> +#include <sys/types.h> +#include <sys/socket.h> #define VIRTIO_NET_IRQ 14 #define VIRTIO_NET_QUEUE_SIZE 128 @@ -276,7 +279,9 @@ static struct pci_device_header virtio_net_pci_device = { static void virtio_net__tap_init(void) { struct ifreq ifr; - + int sock = socket(AF_INET, SOCK_STREAM, 0); + struct sockaddr_in sin = {0}; + net_device.tap_fd = open("/dev/net/tun", O_RDWR); if (net_device.tap_fd < 0) die("Unable to open /dev/net/tun\n"); @@ -291,9 +296,27 @@ static void virtio_net__tap_init(void) ioctl(net_device.tap_fd, TUNSETNOCSUM, 1); + + memset(&ifr, 0, sizeof(ifr)); + + strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name)); + /*FIXME: Remove this after user can specify ip address and netmask*/ - if (system("ifconfig tap0 192.168.33.2") < 0) - warning("Can not set ip address on tap0"); + sin.sin_addr.s_addr = inet_addr("192.168.33.2"); + memcpy(&(ifr.ifr_addr), &sin, sizeof(ifr.ifr_addr)); + ifr.ifr_addr.sa_family = AF_INET; + + if (ioctl(sock, SIOCSIFADDR, &ifr) < 0) + warning("Can not set ip address on tap device"); + + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name)); + ioctl(sock, SIOCGIFFLAGS, &ifr); + ifr.ifr_flags |= IFF_UP | IFF_RUNNING; + if (ioctl(sock, SIOCSIFFLAGS, &ifr) < 0) + warning("Could not bring tap device up"); + + close(sock); } static void virtio_net__io_thread_init(struct kvm *self) -- 1.7.5.rc1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 2/2 V2] kvm tools: Make host side IP configurable 2011-04-14 5:24 [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls Sasha Levin @ 2011-04-14 5:24 ` Sasha Levin 2011-04-14 12:35 ` Asias He 2011-04-14 12:35 ` [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls Asias He 1 sibling, 1 reply; 4+ messages in thread From: Sasha Levin @ 2011-04-14 5:24 UTC (permalink / raw) To: penberg, asias.hejun, gorcunov; +Cc: kvm, Sasha Levin Add --host-ip-addr parameter to allow changing the host-side IP address. Add a networking group to the cmdline menu. Signed-off-by: Sasha Levin <levinsasha928@gmail.com> --- tools/kvm/include/kvm/virtio-net.h | 2 +- tools/kvm/kvm-run.c | 15 ++++++++++++--- tools/kvm/virtio-net.c | 9 ++++----- 3 files changed, 17 insertions(+), 9 deletions(-) diff --git a/tools/kvm/include/kvm/virtio-net.h b/tools/kvm/include/kvm/virtio-net.h index a1cab15..9800a41 100644 --- a/tools/kvm/include/kvm/virtio-net.h +++ b/tools/kvm/include/kvm/virtio-net.h @@ -2,6 +2,6 @@ #define KVM__VIRTIO_NET_H struct kvm; -void virtio_net__init(struct kvm *self); +void virtio_net__init(struct kvm *self, const char *host_ip_addr); #endif /* KVM__VIRTIO_NET_H */ diff --git a/tools/kvm/kvm-run.c b/tools/kvm/kvm-run.c index 6046a0a..d71057c 100644 --- a/tools/kvm/kvm-run.c +++ b/tools/kvm/kvm-run.c @@ -31,6 +31,7 @@ #define DEFAULT_KVM_DEV "/dev/kvm" #define DEFAULT_CONSOLE "serial" #define DEFAULT_NETWORK "none" +#define DEFAULT_HOST_ADDR "192.168.33.2" #define MB_SHIFT (20) #define MIN_RAM_SIZE_MB (64ULL) @@ -66,6 +67,7 @@ static const char *image_filename; static const char *console; static const char *kvm_dev; static const char *network; +static const char *host_ip_addr; static bool single_step; static bool readonly_image; extern bool ioport_debug; @@ -87,8 +89,6 @@ static const struct option options[] = { "Don't write changes back to disk image"), OPT_STRING('c', "console", &console, "serial or virtio", "Console to use"), - OPT_STRING('n', "network", &network, "virtio", - "Network to use"), OPT_GROUP("Kernel options:"), OPT_STRING('k', "kernel", &kernel_filename, "kernel", @@ -98,6 +98,12 @@ static const struct option options[] = { OPT_STRING('p', "params", &kernel_cmdline, "params", "Kernel command line arguments"), + OPT_GROUP("Networking options:"), + OPT_STRING('n', "network", &network, "virtio", + "Network to use"), + OPT_STRING('\0', "host-ip-addr", &host_ip_addr, "a.b.c.d", + "Assign this address to the host side networking"), + OPT_GROUP("Debug options:"), OPT_STRING('d', "kvm-dev", &kvm_dev, "kvm-dev", "KVM device file"), OPT_BOOLEAN('s', "single-step", &single_step, @@ -218,6 +224,9 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix) else active_console = CONSOLE_8250; + if (!host_ip_addr) + host_ip_addr = DEFAULT_HOST_ADDR; + term_init(); kvm = kvm__init(kvm_dev, ram_size); @@ -259,7 +268,7 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix) network = DEFAULT_NETWORK; if (!strncmp(network, "virtio", 6)) - virtio_net__init(kvm); + virtio_net__init(kvm, host_ip_addr); kvm__start_timer(kvm); diff --git a/tools/kvm/virtio-net.c b/tools/kvm/virtio-net.c index 622cfc6..90a6a17 100644 --- a/tools/kvm/virtio-net.c +++ b/tools/kvm/virtio-net.c @@ -276,7 +276,7 @@ static struct pci_device_header virtio_net_pci_device = { .irq_line = VIRTIO_NET_IRQ, }; -static void virtio_net__tap_init(void) +static void virtio_net__tap_init(const char *host_ip_addr) { struct ifreq ifr; int sock = socket(AF_INET, SOCK_STREAM, 0); @@ -301,8 +301,7 @@ static void virtio_net__tap_init(void) strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name)); - /*FIXME: Remove this after user can specify ip address and netmask*/ - sin.sin_addr.s_addr = inet_addr("192.168.33.2"); + sin.sin_addr.s_addr = inet_addr(host_ip_addr); memcpy(&(ifr.ifr_addr), &sin, sizeof(ifr.ifr_addr)); ifr.ifr_addr.sa_family = AF_INET; @@ -331,11 +330,11 @@ static void virtio_net__io_thread_init(struct kvm *self) pthread_create(&net_device.io_tx_thread, NULL, virtio_net_tx_thread, (void *)self); } -void virtio_net__init(struct kvm *self) +void virtio_net__init(struct kvm *self, const char *host_ip_addr) { pci__register(&virtio_net_pci_device, PCI_VIRTIO_NET_DEVNUM); ioport__register(IOPORT_VIRTIO_NET, &virtio_net_io_ops, IOPORT_VIRTIO_NET_SIZE); - virtio_net__tap_init(); + virtio_net__tap_init(host_ip_addr); virtio_net__io_thread_init(self); } -- 1.7.5.rc1 ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH 2/2 V2] kvm tools: Make host side IP configurable 2011-04-14 5:24 ` [PATCH 2/2 V2] kvm tools: Make host side IP configurable Sasha Levin @ 2011-04-14 12:35 ` Asias He 0 siblings, 0 replies; 4+ messages in thread From: Asias He @ 2011-04-14 12:35 UTC (permalink / raw) To: Sasha Levin; +Cc: penberg, gorcunov, kvm On 04/14/2011 01:24 PM, Sasha Levin wrote: > Add --host-ip-addr parameter to allow changing the host-side IP address. > Add a networking group to the cmdline menu. > > Signed-off-by: Sasha Levin <levinsasha928@gmail.com> > --- > tools/kvm/include/kvm/virtio-net.h | 2 +- > tools/kvm/kvm-run.c | 15 ++++++++++++--- > tools/kvm/virtio-net.c | 9 ++++----- > 3 files changed, 17 insertions(+), 9 deletions(-) > > diff --git a/tools/kvm/include/kvm/virtio-net.h b/tools/kvm/include/kvm/virtio-net.h > index a1cab15..9800a41 100644 > --- a/tools/kvm/include/kvm/virtio-net.h > +++ b/tools/kvm/include/kvm/virtio-net.h > @@ -2,6 +2,6 @@ > #define KVM__VIRTIO_NET_H > > struct kvm; > -void virtio_net__init(struct kvm *self); > +void virtio_net__init(struct kvm *self, const char *host_ip_addr); > > #endif /* KVM__VIRTIO_NET_H */ > diff --git a/tools/kvm/kvm-run.c b/tools/kvm/kvm-run.c > index 6046a0a..d71057c 100644 > --- a/tools/kvm/kvm-run.c > +++ b/tools/kvm/kvm-run.c > @@ -31,6 +31,7 @@ > #define DEFAULT_KVM_DEV "/dev/kvm" > #define DEFAULT_CONSOLE "serial" > #define DEFAULT_NETWORK "none" > +#define DEFAULT_HOST_ADDR "192.168.33.2" > > #define MB_SHIFT (20) > #define MIN_RAM_SIZE_MB (64ULL) > @@ -66,6 +67,7 @@ static const char *image_filename; > static const char *console; > static const char *kvm_dev; > static const char *network; > +static const char *host_ip_addr; > static bool single_step; > static bool readonly_image; > extern bool ioport_debug; > @@ -87,8 +89,6 @@ static const struct option options[] = { > "Don't write changes back to disk image"), > OPT_STRING('c', "console", &console, "serial or virtio", > "Console to use"), > - OPT_STRING('n', "network", &network, "virtio", > - "Network to use"), > > OPT_GROUP("Kernel options:"), > OPT_STRING('k', "kernel", &kernel_filename, "kernel", > @@ -98,6 +98,12 @@ static const struct option options[] = { > OPT_STRING('p', "params", &kernel_cmdline, "params", > "Kernel command line arguments"), > > + OPT_GROUP("Networking options:"), > + OPT_STRING('n', "network", &network, "virtio", > + "Network to use"), > + OPT_STRING('\0', "host-ip-addr", &host_ip_addr, "a.b.c.d", > + "Assign this address to the host side networking"), > + > OPT_GROUP("Debug options:"), > OPT_STRING('d', "kvm-dev", &kvm_dev, "kvm-dev", "KVM device file"), > OPT_BOOLEAN('s', "single-step", &single_step, > @@ -218,6 +224,9 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix) > else > active_console = CONSOLE_8250; > > + if (!host_ip_addr) > + host_ip_addr = DEFAULT_HOST_ADDR; > + > term_init(); > > kvm = kvm__init(kvm_dev, ram_size); > @@ -259,7 +268,7 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix) > network = DEFAULT_NETWORK; > > if (!strncmp(network, "virtio", 6)) > - virtio_net__init(kvm); > + virtio_net__init(kvm, host_ip_addr); > > kvm__start_timer(kvm); > > diff --git a/tools/kvm/virtio-net.c b/tools/kvm/virtio-net.c > index 622cfc6..90a6a17 100644 > --- a/tools/kvm/virtio-net.c > +++ b/tools/kvm/virtio-net.c > @@ -276,7 +276,7 @@ static struct pci_device_header virtio_net_pci_device = { > .irq_line = VIRTIO_NET_IRQ, > }; > > -static void virtio_net__tap_init(void) > +static void virtio_net__tap_init(const char *host_ip_addr) > { > struct ifreq ifr; > int sock = socket(AF_INET, SOCK_STREAM, 0); > @@ -301,8 +301,7 @@ static void virtio_net__tap_init(void) > > strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name)); > > - /*FIXME: Remove this after user can specify ip address and netmask*/ > - sin.sin_addr.s_addr = inet_addr("192.168.33.2"); > + sin.sin_addr.s_addr = inet_addr(host_ip_addr); > memcpy(&(ifr.ifr_addr), &sin, sizeof(ifr.ifr_addr)); > ifr.ifr_addr.sa_family = AF_INET; > > @@ -331,11 +330,11 @@ static void virtio_net__io_thread_init(struct kvm *self) > pthread_create(&net_device.io_tx_thread, NULL, virtio_net_tx_thread, (void *)self); > } > > -void virtio_net__init(struct kvm *self) > +void virtio_net__init(struct kvm *self, const char *host_ip_addr) > { > pci__register(&virtio_net_pci_device, PCI_VIRTIO_NET_DEVNUM); > ioport__register(IOPORT_VIRTIO_NET, &virtio_net_io_ops, IOPORT_VIRTIO_NET_SIZE); > > - virtio_net__tap_init(); > + virtio_net__tap_init(host_ip_addr); > virtio_net__io_thread_init(self); > } Looks good to me. Reviewed-by: Asias He <asias.hejun@gmail.com> -- Best Regards, Asias He ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls 2011-04-14 5:24 [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls Sasha Levin 2011-04-14 5:24 ` [PATCH 2/2 V2] kvm tools: Make host side IP configurable Sasha Levin @ 2011-04-14 12:35 ` Asias He 1 sibling, 0 replies; 4+ messages in thread From: Asias He @ 2011-04-14 12:35 UTC (permalink / raw) To: Sasha Levin; +Cc: penberg, gorcunov, kvm On 04/14/2011 01:24 PM, Sasha Levin wrote: > Use ioctls to assign IP address and bring interface up instead of using ifconfig. > Not breaking aliasing rules this time. > > Signed-off-by: Sasha Levin <levinsasha928@gmail.com> > --- > tools/kvm/virtio-net.c | 29 ++++++++++++++++++++++++++--- > 1 files changed, 26 insertions(+), 3 deletions(-) > > diff --git a/tools/kvm/virtio-net.c b/tools/kvm/virtio-net.c > index ec70d5c..622cfc6 100644 > --- a/tools/kvm/virtio-net.c > +++ b/tools/kvm/virtio-net.c > @@ -14,6 +14,9 @@ > #include <sys/ioctl.h> > #include <assert.h> > #include <fcntl.h> > +#include <arpa/inet.h> > +#include <sys/types.h> > +#include <sys/socket.h> > > #define VIRTIO_NET_IRQ 14 > #define VIRTIO_NET_QUEUE_SIZE 128 > @@ -276,7 +279,9 @@ static struct pci_device_header virtio_net_pci_device = { > static void virtio_net__tap_init(void) > { > struct ifreq ifr; > - > + int sock = socket(AF_INET, SOCK_STREAM, 0); > + struct sockaddr_in sin = {0}; > + > net_device.tap_fd = open("/dev/net/tun", O_RDWR); > if (net_device.tap_fd < 0) > die("Unable to open /dev/net/tun\n"); > @@ -291,9 +296,27 @@ static void virtio_net__tap_init(void) > > ioctl(net_device.tap_fd, TUNSETNOCSUM, 1); > > + > + memset(&ifr, 0, sizeof(ifr)); > + > + strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name)); > + > /*FIXME: Remove this after user can specify ip address and netmask*/ > - if (system("ifconfig tap0 192.168.33.2") < 0) > - warning("Can not set ip address on tap0"); > + sin.sin_addr.s_addr = inet_addr("192.168.33.2"); > + memcpy(&(ifr.ifr_addr), &sin, sizeof(ifr.ifr_addr)); > + ifr.ifr_addr.sa_family = AF_INET; > + > + if (ioctl(sock, SIOCSIFADDR, &ifr) < 0) > + warning("Can not set ip address on tap device"); > + > + memset(&ifr, 0, sizeof(ifr)); > + strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name)); > + ioctl(sock, SIOCGIFFLAGS, &ifr); > + ifr.ifr_flags |= IFF_UP | IFF_RUNNING; > + if (ioctl(sock, SIOCSIFFLAGS, &ifr) < 0) > + warning("Could not bring tap device up"); > + > + close(sock); > } > > static void virtio_net__io_thread_init(struct kvm *self) Looks good to me. Reviewed-by: Asias He <asias.hejun@gmail.com> -- Best Regards, Asias He ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-04-14 12:36 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2011-04-14 5:24 [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls Sasha Levin 2011-04-14 5:24 ` [PATCH 2/2 V2] kvm tools: Make host side IP configurable Sasha Levin 2011-04-14 12:35 ` Asias He 2011-04-14 12:35 ` [PATCH 1/2 V2] kvm tools: Set up tun interface using ioctls Asias He
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