first usable version of kernel and commands

After an year of hard work, this is a first "usable" version of Jehanne.
2016-11-25 16:18:40 +00:00
parent 391252a059
commit 38aca7a581
3989 changed files with 406697 additions and 1909 deletions
--- a/sys/src/kern/port/netif.h
+++ b/sys/src/kern/port/netif.h
@ -0,0 +1,134 @@
+typedef struct Netaddr	Netaddr;
+typedef struct Netfile	Netfile;
+typedef struct Netif	Netif;
+
+enum
+{
+	Nmaxaddr=	64,
+	Nmhash=		31,
+	Niqlim=		128,
+	Noqlim=		4096,
+
+	Ncloneqid=	1,
+	Naddrqid,
+	N2ndqid,
+	N3rdqid,
+	Ndataqid,
+	Nctlqid,
+	Nstatqid,
+	N3statqid,
+	Ntypeqid,
+	Nifstatqid,
+	Nmtuqid,
+	Nmaxmtuqid,
+};
+
+/*
+ *  Macros to manage Qid's used for multiplexed devices
+ */
+#define NETTYPE(x)	(((uint32_t)x)&0x1f)
+#define NETID(x)	((((uint32_t)x))>>5)
+#define NETQID(i,t)	((((uint32_t)i)<<5)|(t))
+
+/*
+ *  one per multiplexed connection
+ */
+struct Netfile
+{
+	QLock;
+
+	int	inuse;
+	uint32_t	mode;
+	char	owner[KNAMELEN];
+
+	int	type;			/* multiplexor type */
+	int	prom;			/* promiscuous mode */
+	int	scan;			/* base station scanning interval */
+	int	bridge;			/* bridge mode */
+	int	vlan;			/* treat 802.1Q frames as inner frame type*/
+	int	headersonly;		/* headers only - no data */
+	uint8_t	maddr[8];		/* bitmask of multicast addresses requested */
+	int	nmaddr;			/* number of multicast addresses */
+	int	fat;			/* frame at a time */
+
+	uint32_t	inoverflows;		/* software input overflows */
+
+	Queue*	iq;			/* input */
+};
+
+/*
+ *  a network address
+ */
+struct Netaddr
+{
+	Netaddr	*next;			/* allocation chain */
+	Netaddr	*hnext;
+	uint8_t	addr[Nmaxaddr];
+	int	ref;
+};
+
+/*
+ *  a network interface
+ */
+struct Netif
+{
+	QLock;
+
+	int	inited;
+
+	/* multiplexing */
+	char	name[KNAMELEN];		/* for top level directory */
+	int	nfile;			/* max number of Netfiles */
+	Netfile	**f;
+
+	/* about net */
+	int	limit;			/* flow control */
+	int	alen;			/* address length */
+	int	mbps;			/* megabits per sec */
+	int	link;			/* link status */
+	int	minmtu;
+	int 	maxmtu;
+	int	mtu;
+	uint8_t	addr[Nmaxaddr];
+	uint8_t	bcast[Nmaxaddr];
+	Netaddr	*maddr;			/* known multicast addresses */
+	int	nmaddr;			/* number of known multicast addresses */
+	Netaddr *mhash[Nmhash];		/* hash table of multicast addresses */
+	int	prom;			/* number of promiscuous opens */
+	int	scan;			/* number of base station scanners */
+	int	all;			/* number of -1 multiplexors */
+
+	Queue*	oq;			/* output */
+
+	/* statistics */
+	uint32_t	misses;
+	uint64_t	inpackets;
+	uint64_t	outpackets;
+	uint32_t	crcs;			/* input crc errors */
+	uint32_t	oerrs;			/* output errors */
+	uint32_t	frames;			/* framing errors */
+	uint32_t	overflows;		/* packet overflows */
+	uint32_t	buffs;			/* buffering errors */
+	uint32_t	inoverflows;	/* software overflow on input */
+	uint32_t	outoverflows;	/* software overflow on output */
+	uint32_t	loopbacks;	/* loopback packets processed */
+
+	/* routines for touching the hardware */
+	void	*arg;
+	void	(*promiscuous)(void*, int);
+	void	(*multicast)(void*, uint8_t*, int);
+	int	(*hwmtu)(void*, int);	/* get/set mtu */
+	void	(*scanbs)(void*, uint32_t);	/* scan for base stations */
+};
+
+void	netifinit(Netif*, char*, int, uint32_t);
+Walkqid*	netifwalk(Netif*, Chan*, Chan*, char **, int);
+Chan*	netifopen(Netif*, Chan*, int);
+void	netifclose(Netif*, Chan*);
+long	netifread(Netif*, Chan*, void*, long, int64_t);
+Block*	netifbread(Netif*, Chan*, long, int64_t);
+long	netifwrite(Netif*, Chan*, void*, long);
+long	netifwstat(Netif*, Chan*, uint8_t*, long);
+long	netifstat(Netif*, Chan*, uint8_t*, long);
+int	activemulti(Netif*, uint8_t*, int);
+void	netifbypass(Netif*, Chan*, void (*)(void*, Block*), void*);