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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:06:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:06:04 +0000
commit2f0649f6fe411d7e07c8d56cf8ea56db53536da8 (patch)
tree778611fb52176dce1ad06c68e87b2cb348ca0f7b /usr/kinit/ipconfig/netdev.h
parentInitial commit. (diff)
downloadklibc-upstream/2.0.13.tar.xz
klibc-upstream/2.0.13.zip
Adding upstream version 2.0.13.upstream/2.0.13upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'usr/kinit/ipconfig/netdev.h')
-rw-r--r--usr/kinit/ipconfig/netdev.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/usr/kinit/ipconfig/netdev.h b/usr/kinit/ipconfig/netdev.h
new file mode 100644
index 0000000..dbc80cd
--- /dev/null
+++ b/usr/kinit/ipconfig/netdev.h
@@ -0,0 +1,107 @@
+#ifndef IPCONFIG_NETDEV_H
+#define IPCONFIG_NETDEV_H
+
+#include <arpa/inet.h>
+#include <sys/utsname.h>
+#include <net/if.h>
+
+#define BPLEN 256
+#define FNLEN 128 /* from DHCP RFC 2131 */
+
+struct route {
+ uint32_t subnet; /* subnet */
+ uint32_t netmask_width; /* subnet mask width */
+ uint32_t gateway; /* gateway */
+ struct route *next;
+};
+
+struct netdev {
+ char *name; /* Device name */
+ unsigned int ifindex; /* interface index */
+ unsigned int hwtype; /* ARPHRD_xxx */
+ unsigned int hwlen; /* HW address length */
+ uint8_t hwaddr[16]; /* HW address */
+ uint8_t hwbrd[16]; /* Broadcast HW address */
+ unsigned int mtu; /* Device mtu */
+ unsigned int caps; /* Capabilities */
+ time_t open_time;
+
+ struct { /* BOOTP/DHCP info */
+ int fd;
+ uint32_t xid;
+ uint32_t gateway; /* BOOTP/DHCP gateway */
+ } bootp;
+
+ struct { /* RARP information */
+ int fd;
+ } rarp;
+
+ uint8_t proto; /* a protocol used (e.g. PROTO_DHCP) */
+ uint32_t ip_addr; /* my address */
+ uint32_t ip_broadcast; /* broadcast address */
+ uint32_t ip_server; /* server address */
+ uint32_t ip_netmask; /* my subnet mask */
+ uint32_t ip_gateway; /* my gateway */
+ uint32_t ip_nameserver[2]; /* two nameservers */
+ uint32_t serverid; /* dhcp serverid */
+ uint32_t dhcpleasetime; /* duration in seconds */
+ char reqhostname[SYS_NMLN]; /* requested hostname */
+ char hostname[SYS_NMLN]; /* hostname */
+ char dnsdomainname[SYS_NMLN]; /* dns domain name */
+ char nisdomainname[SYS_NMLN]; /* nis domain name */
+ char bootpath[BPLEN]; /* boot path */
+ char filename[FNLEN]; /* filename */
+ char *domainsearch; /* decoded, NULL or malloc-ed */
+ struct route *routes; /* decoded, NULL or malloc-ed list */
+ long uptime; /* when complete configuration */
+ int pkt_fd; /* packet socket for this interface */
+ struct netdev *next; /* next configured i/f */
+};
+
+extern struct netdev *ifaces;
+
+/*
+ * Device capabilities
+ */
+#define CAP_BOOTP (1<<0)
+#define CAP_DHCP (1<<1)
+#define CAP_RARP (1<<2)
+
+/*
+ * Device states
+ */
+#define DEVST_UP 0
+#define DEVST_BOOTP 1
+#define DEVST_DHCPDISC 2
+#define DEVST_DHCPREQ 3
+#define DEVST_COMPLETE 4
+#define DEVST_ERROR 5
+
+int netdev_getflags(struct netdev *dev, short *flags);
+int netdev_setaddress(struct netdev *dev);
+int netdev_setroutes(struct netdev *dev);
+int netdev_up(struct netdev *dev);
+int netdev_down(struct netdev *dev);
+int netdev_init_if(struct netdev *dev);
+int netdev_setmtu(struct netdev *dev);
+
+static inline int netdev_running(struct netdev *dev)
+{
+ short flags;
+ int ret = netdev_getflags(dev, &flags);
+
+ return ret ? 0 : !!(flags & IFF_RUNNING);
+}
+
+static inline uint32_t netdev_genmask(uint32_t netmask_width)
+{
+ /* Map netmask width to network mask in network byte order.
+ Example: 24 -> "255.255.255.0" -> htonl(0xFFFFFF00) */
+ if (netmask_width == 0) {
+ return 0;
+ } else {
+ return htonl(~((1u << (32 - netmask_width)) - 1));
+ }
+}
+
+#endif /* IPCONFIG_NETDEV_H */