Attachment 229111 Details for Bug 334931 – sample request-key callout program

sample request-key callout program

cifskey.c (text/plain), 1.27 KB, created by Jeff Layton on 2007-10-16 18:30:24 UTC

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Creator: Jeff Layton

Created: 2007-10-16 18:30:24 UTC

Size: 1.27 KB

patch

obsolete

>#include <sys/types.h>
>#include <keyutils.h>
>#include <string.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <syslog.h>
>#include <errno.h>
>
>struct cifs_spnego_reply {
>	uint32_t 	len;
>	uint8_t		data[1];
>};
>
>int main(int argc, char **argv)
>{
>
>	unsigned char *cp;
>	unsigned char *bp;
>	int clen, blen;
>	key_serial_t key;
>	struct cifs_spnego_reply *rep;
>
>	if (argc < 3) {
>		fprintf(stderr, "usage: %s <key_id> <callout_info>\n",
>			argv[0]);
>		return 1;
>	}
>
>	clen = strlen(argv[2]);
>	syslog(LOG_ERR, "%s: clen = %d\n", argv[0], clen);
>	rep = calloc(sizeof(char), clen + 4);
>	bp = rep->data;
>
>	/*
>	 * convert null terminated string into binary blob. The reason for
>	 * encoding is to deal with NULLs embedded in the data. To decode:
>	 *
>	 *	  input		output
>	 *	-----------	------
>	 *	0xff + 0x01	 0xff
>	 *	0xff + 0x02	 0x00
>	 *
>	 * any other byte is passed as-is.
>	 */
>	for (cp = (unsigned char *) argv[2]; cp && *cp; ++cp) {
>		if (*cp == 0xff) {
>			++cp;
>			if (*cp == 0x01)
>				*bp = 0xff;
>			else if (*cp == 0x02)
>				*bp = 0x00;
>			else
>				return -EINVAL;
>		} else
>			*bp = *cp;
>		++bp;
>	}
>
>	rep->len = bp - rep->data;
>
>	key = atoi(argv[1]);
>
>	syslog(LOG_ERR, "%s: key = %d, rep->len=%u, blen = %d\n", argv[0], key, rep->len, blen);
>	keyctl_instantiate(key, rep, (rep->len+4), 0);
>
>	return 0;
>}

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Attachments on bug 334931: 229111 | 232751