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author | Marcel Holtmann <marcel@holtmann.org> | 2008-07-30 20:34:25 +0200 |
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committer | Marcel Holtmann <marcel@holtmann.org> | 2008-07-30 20:34:25 +0200 |
commit | c2908070308fc8522dff68a4c2006b6e64b95693 (patch) | |
tree | 556dd3eb1682447772095d4291af248437955ab6 /plugins/ipv4.c | |
parent | 18e5d7d3de2d5dabb94f8a7c9f665f02bb5ae324 (diff) | |
download | connman-c2908070308fc8522dff68a4c2006b6e64b95693.tar.gz connman-c2908070308fc8522dff68a4c2006b6e64b95693.tar.bz2 connman-c2908070308fc8522dff68a4c2006b6e64b95693.zip |
Set IPv4 address and routing information
Diffstat (limited to 'plugins/ipv4.c')
-rw-r--r-- | plugins/ipv4.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/plugins/ipv4.c b/plugins/ipv4.c index 6d2e2a8c..9654c764 100644 --- a/plugins/ipv4.c +++ b/plugins/ipv4.c @@ -23,13 +23,160 @@ #include <config.h> #endif +#include <unistd.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <net/if.h> +#include <net/route.h> + +#include <linux/netlink.h> +#include <linux/rtnetlink.h> + #include <connman/plugin.h> #include <connman/driver.h> #include <connman/log.h> +enum connman_ipv4_method { + CONNMAN_IPV4_METHOD_UNKNOWN = 0, + CONNMAN_IPV4_METHOD_OFF = 1, + CONNMAN_IPV4_METHOD_STATIC = 2, + CONNMAN_IPV4_METHOD_DHCP = 3, +}; + +struct connman_ipv4 { + enum connman_ipv4_method method; + struct in_addr address; + struct in_addr netmask; + struct in_addr gateway; + struct in_addr network; + struct in_addr broadcast; + struct in_addr nameserver; +}; + +static int set_ipv4(struct connman_element *element, + struct connman_ipv4 *ipv4) +{ + struct ifreq ifr; + struct rtentry rt; + struct sockaddr_in *addr; + int sk, err; + + DBG("element %p ipv4 %p", element, ipv4); + + sk = socket(PF_INET, SOCK_DGRAM, 0); + if (sk < 0) + return -1; + + memset(&ifr, 0, sizeof(ifr)); + ifr.ifr_ifindex = element->netdev.index; + + if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) { + close(sk); + return -1; + } + + DBG("ifname %s", ifr.ifr_name); + + addr = (struct sockaddr_in *) &ifr.ifr_addr; + addr->sin_family = AF_INET; + addr->sin_addr = ipv4->address; + + err = ioctl(sk, SIOCSIFADDR, &ifr); + + if (err < 0) + DBG("address setting failed (%s)", strerror(errno)); + + addr = (struct sockaddr_in *) &ifr.ifr_netmask; + addr->sin_family = AF_INET; + addr->sin_addr = ipv4->netmask; + + err = ioctl(sk, SIOCSIFNETMASK, &ifr); + + if (err < 0) + DBG("netmask setting failed (%s)", strerror(errno)); + + addr = (struct sockaddr_in *) &ifr.ifr_broadaddr; + addr->sin_family = AF_INET; + addr->sin_addr = ipv4->broadcast; + + err = ioctl(sk, SIOCSIFBRDADDR, &ifr); + + if (err < 0) + DBG("broadcast setting failed (%s)", strerror(errno)); + + memset(&rt, 0, sizeof(rt)); + rt.rt_flags = RTF_UP | RTF_GATEWAY; + + addr = (struct sockaddr_in *) &rt.rt_dst; + addr->sin_family = AF_INET; + addr->sin_addr.s_addr = INADDR_ANY; + + addr = (struct sockaddr_in *) &rt.rt_gateway; + addr->sin_family = AF_INET; + addr->sin_addr = ipv4->gateway; + + addr = (struct sockaddr_in *) &rt.rt_genmask; + addr->sin_family = AF_INET; + addr->sin_addr.s_addr = INADDR_ANY; + + err = ioctl(sk, SIOCADDRT, &rt); + + close(sk); + + if (err < 0) { + DBG("default route failed (%s)", strerror(errno)); + return -1; + } + + return 0; +} + +static int clear_ipv4(struct connman_element *element) +{ + struct ifreq ifr; + struct sockaddr_in *addr; + int sk, err; + + DBG("element %p", element); + + sk = socket(PF_INET, SOCK_DGRAM, 0); + if (sk < 0) + return -1; + + memset(&ifr, 0, sizeof(ifr)); + ifr.ifr_ifindex = element->netdev.index; + + if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) { + close(sk); + return -1; + } + + DBG("ifname %s", ifr.ifr_name); + + addr = (struct sockaddr_in *) &ifr.ifr_addr; + addr->sin_family = AF_INET; + addr->sin_addr.s_addr = INADDR_ANY; + + //err = ioctl(sk, SIOCDIFADDR, &ifr); + err = ioctl(sk, SIOCSIFADDR, &ifr); + + close(sk); + + if (err < 0 && errno != EADDRNOTAVAIL) { + DBG("address removal failed (%s)", strerror(errno)); + return -1; + } + + return 0; +} + static int ipv4_probe(struct connman_element *element) { struct connman_element *resolver; + struct connman_ipv4 ipv4; const char *address = NULL, *netmask = NULL, *gateway = NULL; DBG("element %p name %s", element, element->name); @@ -45,6 +192,13 @@ static int ipv4_probe(struct connman_element *element) DBG("netmask %s", netmask); DBG("gateway %s", gateway); + memset(&ipv4, 0, sizeof(ipv4)); + ipv4.address.s_addr = inet_addr(address); + ipv4.netmask.s_addr = inet_addr(netmask); + ipv4.gateway.s_addr = inet_addr(gateway); + + set_ipv4(element, &ipv4); + resolver = connman_element_create(); resolver->type = CONNMAN_ELEMENT_TYPE_RESOLVER; @@ -68,6 +222,8 @@ static void ipv4_remove(struct connman_element *element) connman_element_unregister(resolver); connman_element_unref(resolver); + + clear_ipv4(element); } static struct connman_driver ipv4_driver = { |