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/*
* lib/ib.c This file contains an implementation of the "Infiniband"
* support functions.
*
* Version: $Id: ib.c,v 1.1 2008/10/03 01:52:03 ecki Exp $
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* Copyright 1993 MicroWalt Corporation
* Tom Duffy <tduffy@sun.com>
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
#include "config.h"
#if HAVE_HWIB
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if_arp.h>
#include <linux/if_infiniband.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include "net-support.h"
#include "pathnames.h"
#include "intl.h"
#include "util.h"
extern struct hwtype ib_hwtype;
/* Display an InfiniBand address in readable format. */
static char *pr_ib(unsigned char *ptr)
{
static char buff[128];
char *pos;
unsigned int i;
pos = buff;
for (i = 0; i < INFINIBAND_ALEN; i++) {
pos += sprintf(pos, "%02X:", (*ptr++ & 0377));
}
buff[strlen(buff) - 1] = '\0';
/* snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
(ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
(ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
);
*/
return (buff);
}
/* Input an Infiniband address and convert to binary. */
static int in_ib(char *bufp, struct sockaddr *sap)
{
unsigned char *ptr;
char c, *orig;
int i;
unsigned val;
sap->sa_family = ib_hwtype.type;
ptr = sap->sa_data;
i = 0;
orig = bufp;
while ((*bufp != '\0') && (i < INFINIBAND_ALEN)) {
val = 0;
c = *bufp++;
if (isdigit(c))
val = c - '0';
else if (c >= 'a' && c <= 'f')
val = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = c - 'A' + 10;
else {
#ifdef DEBUG
fprintf(stderr, _("in_ib(%s): invalid infiniband address!\n"), orig);
#endif
errno = EINVAL;
return (-1);
}
val <<= 4;
c = *bufp;
if (isdigit(c))
val |= c - '0';
else if (c >= 'a' && c <= 'f')
val |= c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val |= c - 'A' + 10;
else if (c == ':' || c == 0)
val >>= 4;
else {
#ifdef DEBUG
fprintf(stderr, _("in_ib(%s): invalid infiniband address!\n"), orig);
#endif
errno = EINVAL;
return (-1);
}
if (c != 0)
bufp++;
*ptr++ = (unsigned char) (val & 0377);
i++;
/* We might get a semicolon here - not required. */
if (*bufp == ':') {
if (i == INFINIBAND_ALEN) {
#ifdef DEBUG
fprintf(stderr, _("in_ib(%s): trailing : ignored!\n"),
orig)
#endif
; /* nothing */
}
bufp++;
}
}
/* That's it. Any trailing junk? */
if ((i == INFINIBAND_ALEN) && (*bufp != '\0')) {
#ifdef DEBUG
fprintf(stderr, _("in_ib(%s): trailing junk!\n"), orig);
errno = EINVAL;
return (-1);
#endif
}
#ifdef DEBUG
fprintf(stderr, "in_ib(%s): %s\n", orig, pr_ib(sap->sa_data));
#endif
return (0);
}
struct hwtype ib_hwtype =
{
"infiniband", NULL, ARPHRD_INFINIBAND, INFINIBAND_ALEN,
pr_ib, in_ib, NULL
};
#endif /* HAVE_HWIB */
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