[libvirt] [PATCH 09/11] Remove all use of inet_pton and inet_ntop
Daniel P. Berrange
berrange at redhat.com
Thu Oct 21 18:17:23 UTC 2010
The inet_pton and inet_ntop functions are obsolete, replaced
by getaddrinfo+getnameinfo with the AI_NUMERICHOST flag set.
These can be accessed via the virSocket APIs.
The bridge.c code had methods for fetching the IP address of
a bridge which used inet_ntop. Aside from the use of inet_ntop
these methods are broken, because a NIC can have multiple
addresses and this only returns one address. Since the methods
are never used, just remove them.
* src/conf/network_conf.c, src/nwfilter/nwfilter_learnipaddr.c:
Replace inet_pton and inet_ntop with virSocket APIs
* src/util/bridge.c, src/util/bridge.h: Remove unused methods
which called inet_ntop.
---
src/conf/network_conf.c | 36 +++++++-------
src/nwfilter/nwfilter_learnipaddr.c | 36 +++++++------
src/util/bridge.c | 95 ++---------------------------------
src/util/bridge.h | 8 ---
4 files changed, 43 insertions(+), 132 deletions(-)
diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index fe52f95..0663d52 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -278,7 +278,7 @@ virNetworkDHCPRangeDefParseXML(virNetworkDefPtr def,
xmlStrEqual(cur->name, BAD_CAST "host")) {
xmlChar *mac, *name, *ip;
unsigned char addr[6];
- struct in_addr inaddress;
+ virSocketAddr inaddr;
mac = xmlGetProp(cur, BAD_CAST "mac");
if ((mac != NULL) &&
@@ -305,10 +305,7 @@ virNetworkDHCPRangeDefParseXML(virNetworkDefPtr def,
continue;
}
ip = xmlGetProp(cur, BAD_CAST "ip");
- if (inet_pton(AF_INET, (const char *) ip, &inaddress) <= 0) {
- virNetworkReportError(VIR_ERR_INTERNAL_ERROR,
- _("cannot parse IP address '%s'"),
- ip);
+ if (virSocketParseAddr((const char *)ip, &inaddr, AF_UNSPEC) < 0) {
VIR_FREE(ip);
VIR_FREE(mac);
VIR_FREE(name);
@@ -428,31 +425,34 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
def->netmask = virXPathString("string(./ip[1]/@netmask)", ctxt);
if (def->ipAddress &&
def->netmask) {
- /* XXX someday we want IPv6 too, so inet_aton won't work there */
- struct in_addr inaddress, innetmask;
+ virSocketAddr inaddress, innetmask;
char *netaddr;
xmlNodePtr ip;
- if (inet_pton(AF_INET, def->ipAddress, &inaddress) <= 0) {
- virNetworkReportError(VIR_ERR_INTERNAL_ERROR,
- _("cannot parse IP address '%s'"),
- def->ipAddress);
+ if (virSocketParseAddr(def->ipAddress, &inaddress, AF_UNSPEC) < 0)
goto error;
- }
- if (inet_pton(AF_INET, def->netmask, &innetmask) <= 0) {
- virNetworkReportError(VIR_ERR_INTERNAL_ERROR,
- _("cannot parse netmask '%s'"),
- def->netmask);
+ if (virSocketParseAddr(def->netmask, &innetmask, AF_UNSPEC) < 0)
+ goto error;
+
+ /* XXX someday we want IPv6, so will need to relax this */
+ if (inaddress.data.sa.sa_family != AF_INET ||
+ innetmask.data.sa.sa_family != AF_INET) {
+ virNetworkReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ "%s", _("Only IPv4 addresses are supported"));
goto error;
}
- inaddress.s_addr &= innetmask.s_addr;
- netaddr = inet_ntoa(inaddress);
+ inaddress.data.inet4.sin_addr.s_addr &=
+ innetmask.data.inet4.sin_addr.s_addr;
+ if (!(netaddr = virSocketFormatAddr(&inaddress)))
+ goto error;
if (virAsprintf(&def->network, "%s/%s", netaddr, def->netmask) < 0) {
+ VIR_FREE(netaddr);
virReportOOMError();
goto error;
}
+ VIR_FREE(netaddr);
if ((ip = virXPathNode("./ip[1]", ctxt)) &&
virNetworkIPParseXML(def, ip) < 0)
diff --git a/src/nwfilter/nwfilter_learnipaddr.c b/src/nwfilter/nwfilter_learnipaddr.c
index 7c94fc2..813a205 100644
--- a/src/nwfilter/nwfilter_learnipaddr.c
+++ b/src/nwfilter/nwfilter_learnipaddr.c
@@ -627,22 +627,26 @@ learnIPAddressThread(void *arg)
if (req->status == 0) {
int ret;
- char inetaddr[INET_ADDRSTRLEN];
- inet_ntop(AF_INET, &vmaddr, inetaddr, sizeof(inetaddr));
-
- virNWFilterAddIpAddrForIfname(req->ifname, strdup(inetaddr));
-
- ret = virNWFilterInstantiateFilterLate(NULL,
- req->ifname,
- req->ifindex,
- req->linkdev,
- req->nettype,
- req->macaddr,
- req->filtername,
- req->filterparams,
- req->driver);
- VIR_DEBUG("Result from applying firewall rules on "
- "%s with IP addr %s : %d\n", req->ifname, inetaddr, ret);
+ virSocketAddr sa;
+ sa.len = sizeof(sa.data.inet4);
+ sa.data.inet4.sin_addr.s_addr = vmaddr;
+ char *inetaddr;
+
+ if ((inetaddr = virSocketFormatAddr(&sa))!= NULL) {
+ virNWFilterAddIpAddrForIfname(req->ifname, inetaddr);
+
+ ret = virNWFilterInstantiateFilterLate(NULL,
+ req->ifname,
+ req->ifindex,
+ req->linkdev,
+ req->nettype,
+ req->macaddr,
+ req->filtername,
+ req->filterparams,
+ req->driver);
+ VIR_DEBUG("Result from applying firewall rules on "
+ "%s with IP addr %s : %d\n", req->ifname, inetaddr, ret);
+ }
} else {
if (showError)
virReportSystemError(req->status,
diff --git a/src/util/bridge.c b/src/util/bridge.c
index da62c5e..b4a7e26 100644
--- a/src/util/bridge.c
+++ b/src/util/bridge.c
@@ -48,6 +48,7 @@
# include "memory.h"
# include "util.h"
# include "logging.h"
+# include "network.h"
# define JIFFIES_TO_MS(j) (((j)*1000)/HZ)
# define MS_TO_JIFFIES(ms) (((ms)*HZ)/1000)
@@ -660,13 +661,8 @@ brSetInetAddr(brControl *ctl,
int cmd,
const char *addr)
{
- union {
- struct sockaddr sa;
- struct sockaddr_in sa_in;
- } s;
+ virSocketAddr sa;
struct ifreq ifr;
- struct in_addr inaddr;
- int ret;
if (!ctl || !ctl->fd || !ifname || !addr)
return EINVAL;
@@ -676,51 +672,17 @@ brSetInetAddr(brControl *ctl,
if (virStrcpyStatic(ifr.ifr_name, ifname) == NULL)
return EINVAL;
- if ((ret = inet_pton(AF_INET, addr, &inaddr)) < 0)
- return errno;
- else if (ret == 0)
+ if (virSocketParseAddr(addr, &sa, AF_UNSPEC) < 0)
return EINVAL;
- s.sa_in.sin_family = AF_INET;
- s.sa_in.sin_addr = inaddr;
-
- ifr.ifr_addr = s.sa;
-
- if (ioctl(ctl->fd, cmd, &ifr) < 0)
- return errno;
-
- return 0;
-}
-
-static int
-brGetInetAddr(brControl *ctl,
- const char *ifname,
- int cmd,
- char *addr,
- int maxlen)
-{
- struct ifreq ifr;
- struct in_addr *inaddr;
-
- if (!ctl || !ctl->fd || !ifname || !addr)
+ if (sa.data.sa.sa_family != AF_INET)
return EINVAL;
- memset(&ifr, 0, sizeof(struct ifreq));
-
- if (virStrcpyStatic(ifr.ifr_name, ifname) == NULL)
- return EINVAL;
+ ifr.ifr_addr = sa.data.sa;
if (ioctl(ctl->fd, cmd, &ifr) < 0)
return errno;
- if (maxlen < BR_INET_ADDR_MAXLEN || ifr.ifr_addr.sa_family != AF_INET)
- return EFAULT;
-
- inaddr = &((struct sockaddr_in *)&ifr.ifr_data)->sin_addr;
-
- if (!inet_ntop(AF_INET, inaddr, addr, maxlen))
- return errno;
-
return 0;
}
@@ -746,29 +708,6 @@ brSetInetAddress(brControl *ctl,
}
/**
- * brGetInetAddress:
- * @ctl: bridge control pointer
- * @ifname: the interface name
- * @addr: the array for the string representation of the IP address
- * @maxlen: size of @addr in bytes
- *
- * Function to get the IP address of an interface, it should handle
- * IPV4 and IPv6. The returned string for addr would be of the form
- * "ddd.ddd.ddd.ddd" assuming the common IPv4 format.
- *
- * Returns 0 in case of success or an errno code in case of failure.
- */
-
-int
-brGetInetAddress(brControl *ctl,
- const char *ifname,
- char *addr,
- int maxlen)
-{
- return brGetInetAddr(ctl, ifname, SIOCGIFADDR, addr, maxlen);
-}
-
-/**
* brSetInetNetmask:
* @ctl: bridge control pointer
* @ifname: the interface name
@@ -790,30 +729,6 @@ brSetInetNetmask(brControl *ctl,
}
/**
- * brGetInetNetmask:
- * @ctl: bridge control pointer
- * @ifname: the interface name
- * @addr: the array for the string representation of the netmask
- * @maxlen: size of @addr in bytes
- *
- * Function to get the netmask of an interface, it should handle
- * IPV4 and IPv6. The returned string for addr would be of the form
- * "ddd.ddd.ddd.ddd" assuming the common IPv4 format.
- *
- * Returns 0 in case of success or an errno code in case of failure.
- */
-
-int
-brGetInetNetmask(brControl *ctl,
- const char *ifname,
- char *addr,
- int maxlen)
-{
- return brGetInetAddr(ctl, ifname, SIOCGIFNETMASK, addr, maxlen);
-}
-
-
-/**
* brSetForwardDelay:
* @ctl: bridge control pointer
* @bridge: the bridge name
diff --git a/src/util/bridge.h b/src/util/bridge.h
index 96696ac..abcd1b5 100644
--- a/src/util/bridge.h
+++ b/src/util/bridge.h
@@ -85,17 +85,9 @@ int brGetInterfaceUp (brControl *ctl,
int brSetInetAddress (brControl *ctl,
const char *ifname,
const char *addr);
-int brGetInetAddress (brControl *ctl,
- const char *ifname,
- char *addr,
- int maxlen);
int brSetInetNetmask (brControl *ctl,
const char *ifname,
const char *netmask);
-int brGetInetNetmask (brControl *ctl,
- const char *ifname,
- char *netmask,
- int maxlen);
int brSetForwardDelay (brControl *ctl,
const char *bridge,
--
1.7.2.3
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