From 2f0649f6fe411d7e07c8d56cf8ea56db53536da8 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:06:04 +0200 Subject: Adding upstream version 2.0.13. Signed-off-by: Daniel Baumann --- usr/kinit/ipconfig/netdev.h | 107 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) create mode 100644 usr/kinit/ipconfig/netdev.h (limited to 'usr/kinit/ipconfig/netdev.h') 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 +#include +#include + +#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 */ -- cgit v1.2.3