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rpc: allow selection of TCP address family

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By default, getaddrinfo() will return addresses for both
IPv4 and IPv6 if both protocols are enabled, and so the
RPC code will listen/connect to both protocols too. There
may be cases where it is desirable to restrict this to
just one of the two protocols, so add an 'int family'
parameter to all the TCP related APIs.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2015-05-21 15:51:28 +01:00
parent c0ef99525d
commit d587704cc7
11 changed files with 44 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
daemon/libvirtd.c
View File

@ -509,6 +509,7 @@ daemonSetupNetworking(virNetServerPtr srv,
config->listen_addr, config->tcp_port);
if (!(svcTCP = virNetServerServiceNewTCP(config->listen_addr,
config->tcp_port,
AF_UNSPEC,
config->auth_tcp,
#if WITH_GNUTLS
NULL,
@ -552,6 +553,7 @@ daemonSetupNetworking(virNetServerPtr srv,
if (!(svcTLS =
virNetServerServiceNewTCP(config->listen_addr,
config->tls_port,
AF_UNSPEC,
config->auth_tls,
ctxt,
false,

8
src/libxl/libxl_migration.c
View File

@ -389,7 +389,9 @@ libxlDomainMigrationPrepare(virConnectPtr dconn,
snprintf(portstr, sizeof(portstr), "%d", port);
if (virNetSocketNewListenTCP(hostname, portstr, &socks, &nsocks) < 0) {
if (virNetSocketNewListenTCP(hostname, portstr,
AF_UNSPEC,
&socks, &nsocks) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Fail to create socket for incoming migration"));
goto error;
@ -491,7 +493,9 @@ libxlDomainMigrationPerform(libxlDriverPrivatePtr driver,
snprintf(portstr, sizeof(portstr), "%d", port);
/* socket connect to dst host:port */
if (virNetSocketNewConnectTCP(hostname, portstr, &sock) < 0) {
if (virNetSocketNewConnectTCP(hostname, portstr,
AF_UNSPEC,
&sock) < 0) {
virReportSystemError(saved_errno,
_("unable to connect to '%s:%s'"),
hostname, portstr);

4
src/qemu/qemu_migration.c
View File

@ -3866,7 +3866,9 @@ qemuMigrationConnect(virQEMUDriverPtr driver,
if (virSecurityManagerSetSocketLabel(driver->securityManager, vm->def) < 0)
goto cleanup;
if (virNetSocketNewConnectTCP(host, port, &sock) == 0) {
if (virNetSocketNewConnectTCP(host, port,
AF_UNSPEC,
&sock) == 0) {
spec->dest.fd.qemu = virNetSocketDupFD(sock, true);
virObjectUnref(sock);
}

3
src/remote/remote_driver.c
View File

@ -819,7 +819,7 @@ doRemoteOpen(virConnectPtr conn,
/*FALLTHROUGH*/
case trans_tcp:
priv->client = virNetClientNewTCP(priv->hostname, port);
priv->client = virNetClientNewTCP(priv->hostname, port, AF_UNSPEC);
if (!priv->client)
goto failed;
@ -854,6 +854,7 @@ doRemoteOpen(virConnectPtr conn,
priv->client = virNetClientNewLibSSH2(priv->hostname,
port,
AF_UNSPEC,
username,
keyfile,
knownHosts,

12
src/rpc/virnetclient.c
View File

@ -349,11 +349,14 @@ virNetClientPtr virNetClientNewUNIX(const char *path,
virNetClientPtr virNetClientNewTCP(const char *nodename,
const char *service)
const char *service,
int family)
{
virNetSocketPtr sock;
if (virNetSocketNewConnectTCP(nodename, service, &sock) < 0)
if (virNetSocketNewConnectTCP(nodename, service,
family,
&sock) < 0)
return NULL;
return virNetClientNew(sock, nodename);
@ -383,6 +386,7 @@ virNetClientPtr virNetClientNewSSH(const char *nodename,
VAR = VAL;
virNetClientPtr virNetClientNewLibSSH2(const char *host,
const char *port,
int family,
const char *username,
const char *privkeyPath,
const char *knownHostsPath,
@ -473,7 +477,9 @@ virNetClientPtr virNetClientNewLibSSH2(const char *host,
if (!(command = virBufferContentAndReset(&buf)))
goto no_memory;
if (virNetSocketNewConnectLibSSH2(host, port, username, privkey,
if (virNetSocketNewConnectLibSSH2(host, port,
family,
username, privkey,
knownhosts, knownHostsVerify, authMethods,
command, authPtr, uri, &sock) != 0)
goto cleanup;

4
src/rpc/virnetclient.h
View File

@ -41,7 +41,8 @@ virNetClientPtr virNetClientNewUNIX(const char *path,
const char *binary);
virNetClientPtr virNetClientNewTCP(const char *nodename,
const char *service);
const char *service,
int family);
virNetClientPtr virNetClientNewSSH(const char *nodename,
const char *service,
@ -55,6 +56,7 @@ virNetClientPtr virNetClientNewSSH(const char *nodename,
virNetClientPtr virNetClientNewLibSSH2(const char *host,
const char *port,
int family,
const char *username,
const char *privkeyPath,
const char *knownHostsPath,

2
src/rpc/virnetserverservice.c
View File

@ -143,6 +143,7 @@ virNetServerServiceNewFDOrUNIX(const char *path,
virNetServerServicePtr virNetServerServiceNewTCP(const char *nodename,
const char *service,
int family,
int auth,
#if WITH_GNUTLS
virNetTLSContextPtr tls,
@ -169,6 +170,7 @@ virNetServerServicePtr virNetServerServiceNewTCP(const char *nodename,
if (virNetSocketNewListenTCP(nodename,
service,
family,
&svc->socks,
&svc->nsocks) < 0)
goto error;

1
src/rpc/virnetserverservice.h
View File

@ -51,6 +51,7 @@ virNetServerServicePtr virNetServerServiceNewFDOrUNIX(const char *path,
unsigned int *cur_fd);
virNetServerServicePtr virNetServerServiceNewTCP(const char *nodename,
const char *service,
int family,
int auth,
# if WITH_GNUTLS
virNetTLSContextPtr tls,

8
src/rpc/virnetsocket.c
View File

@ -219,6 +219,7 @@ static virNetSocketPtr virNetSocketNew(virSocketAddrPtr localAddr,
int virNetSocketNewListenTCP(const char *nodename,
const char *service,
int family,
virNetSocketPtr **retsocks,
size_t *nretsocks)
{
@ -236,6 +237,7 @@ int virNetSocketNewListenTCP(const char *nodename,
*nretsocks = 0;
memset(&hints, 0, sizeof(hints));
hints.ai_family = family;
hints.ai_flags = AI_PASSIVE;
hints.ai_socktype = SOCK_STREAM;
@ -454,6 +456,7 @@ int virNetSocketNewListenFD(int fd,
int virNetSocketNewConnectTCP(const char *nodename,
const char *service,
int family,
virNetSocketPtr *retsock)
{
struct addrinfo *ai = NULL;
@ -470,6 +473,7 @@ int virNetSocketNewConnectTCP(const char *nodename,
memset(&remoteAddr, 0, sizeof(remoteAddr));
memset(&hints, 0, sizeof(hints));
hints.ai_family = family;
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
hints.ai_socktype = SOCK_STREAM;
@ -801,6 +805,7 @@ int virNetSocketNewConnectSSH(const char *nodename,
int
virNetSocketNewConnectLibSSH2(const char *host,
const char *port,
int family,
const char *username,
const char *privkey,
const char *knownHosts,
@ -892,7 +897,7 @@ virNetSocketNewConnectLibSSH2(const char *host,
}
/* connect to remote server */
if ((ret = virNetSocketNewConnectTCP(host, port, &sock)) < 0)
if ((ret = virNetSocketNewConnectTCP(host, port, family, &sock)) < 0)
goto error;
/* connect to the host using ssh */
@ -915,6 +920,7 @@ virNetSocketNewConnectLibSSH2(const char *host,
int
virNetSocketNewConnectLibSSH2(const char *host ATTRIBUTE_UNUSED,
const char *port ATTRIBUTE_UNUSED,
int family ATTRIBUTE_UNUSED,
const char *username ATTRIBUTE_UNUSED,
const char *privkey ATTRIBUTE_UNUSED,
const char *knownHosts ATTRIBUTE_UNUSED,

3
src/rpc/virnetsocket.h
View File

@ -47,6 +47,7 @@ typedef void (*virNetSocketIOFunc)(virNetSocketPtr sock,
int virNetSocketNewListenTCP(const char *nodename,
const char *service,
int family,
virNetSocketPtr **addrs,
size_t *naddrs);
@ -61,6 +62,7 @@ int virNetSocketNewListenFD(int fd,
int virNetSocketNewConnectTCP(const char *nodename,
const char *service,
int family,
virNetSocketPtr *addr);
int virNetSocketNewConnectUNIX(const char *path,
@ -84,6 +86,7 @@ int virNetSocketNewConnectSSH(const char *nodename,
int virNetSocketNewConnectLibSSH2(const char *host,
const char *port,
int family,
const char *username,
const char *privkey,
const char *knownHosts,

8
tests/virnetsockettest.c
View File

@ -166,7 +166,9 @@ static int testSocketTCPAccept(const void *opaque)
snprintf(portstr, sizeof(portstr), "%d", data->port);
if (virNetSocketNewListenTCP(data->lnode, portstr, &lsock, &nlsock) < 0)
if (virNetSocketNewListenTCP(data->lnode, portstr,
AF_UNSPEC,
&lsock, &nlsock) < 0)
goto cleanup;
for (i = 0; i < nlsock; i++) {
@ -174,7 +176,9 @@ static int testSocketTCPAccept(const void *opaque)
goto cleanup;
}
if (virNetSocketNewConnectTCP(data->cnode, portstr, &csock) < 0)
if (virNetSocketNewConnectTCP(data->cnode, portstr,
AF_UNSPEC,
&csock) < 0)
goto cleanup;
virObjectUnref(csock);