1 /* 2 * Copyright (c) University of British Columbia, 1984 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Laboratory for Computation Vision and the Computer Science Department 8 * of the University of British Columbia. 9 * 10 * %sccs.include.redist.c% 11 * 12 * @(#)pk_acct.c 7.8 (Berkeley) 05/14/92 13 */ 14 15 #include "param.h" 16 #include "systm.h" 17 #include "namei.h" 18 #include "proc.h" 19 #include "vnode.h" 20 #include "kernel.h" 21 #include "file.h" 22 #include "socket.h" 23 #include "socketvar.h" 24 25 #include "../net/if.h" 26 27 #include "x25.h" 28 #include "pk.h" 29 #include "pk_var.h" 30 #include "x25acct.h" 31 32 33 struct vnode *pkacctp; 34 /* 35 * Turn on packet accounting 36 */ 37 38 pk_accton (path) 39 char *path; 40 { 41 USES_VOP_UNLOCK; 42 register struct vnode *vp = NULL; 43 struct nameidata nd; 44 struct vnode *oacctp = pkacctp; 45 struct proc *p = curproc; 46 int error; 47 48 if (path == 0) 49 goto close; 50 NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, path, p); 51 if (error = vn_open (&nd, FWRITE, 0644)) 52 return (error); 53 vp = nd.ni_vp; 54 VOP_UNLOCK(vp); 55 if (vp -> v_type != VREG) { 56 vrele (vp); 57 return (EACCES); 58 } 59 pkacctp = vp; 60 if (oacctp) { 61 close: 62 error = vn_close (oacctp, FWRITE, p -> p_ucred, p); 63 } 64 return (error); 65 } 66 67 /* 68 * Write a record on the accounting file. 69 */ 70 71 pk_acct (lcp) 72 register struct pklcd *lcp; 73 { 74 register struct vnode *vp; 75 register struct sockaddr_x25 *sa; 76 register char *src, *dst; 77 register int len; 78 register long etime; 79 static struct x25acct acbuf; 80 81 if ((vp = pkacctp) == 0) 82 return; 83 bzero ((caddr_t)&acbuf, sizeof (acbuf)); 84 if (lcp -> lcd_ceaddr != 0) 85 sa = lcp -> lcd_ceaddr; 86 else if (lcp -> lcd_craddr != 0) { 87 sa = lcp -> lcd_craddr; 88 acbuf.x25acct_callin = 1; 89 } else 90 return; 91 92 if (sa -> x25_opts.op_flags & X25_REVERSE_CHARGE) 93 acbuf.x25acct_revcharge = 1; 94 acbuf.x25acct_stime = lcp -> lcd_stime; 95 acbuf.x25acct_etime = time.tv_sec - acbuf.x25acct_stime; 96 acbuf.x25acct_uid = curproc -> p_cred -> p_ruid; 97 acbuf.x25acct_psize = sa -> x25_opts.op_psize; 98 acbuf.x25acct_net = sa -> x25_net; 99 /* 100 * Convert address to bcd 101 */ 102 src = sa -> x25_addr; 103 dst = acbuf.x25acct_addr; 104 for (len = 0; *src; len++) 105 if (len & 01) 106 *dst++ |= *src++ & 0xf; 107 else 108 *dst = *src++ << 4; 109 acbuf.x25acct_addrlen = len; 110 111 bcopy (sa -> x25_udata, acbuf.x25acct_udata, 112 sizeof (acbuf.x25acct_udata)); 113 acbuf.x25acct_txcnt = lcp -> lcd_txcnt; 114 acbuf.x25acct_rxcnt = lcp -> lcd_rxcnt; 115 116 (void) vn_rdwr(UIO_WRITE, vp, (caddr_t)&acbuf, sizeof (acbuf), 117 (off_t)0, UIO_SYSSPACE, IO_UNIT|IO_APPEND, 118 curproc -> p_ucred, (int *)0, 119 (struct proc *)0); 120 } 121