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authorTheo de Raadt <deraadt@cvs.openbsd.org>1998-11-14 23:37:31 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>1998-11-14 23:37:31 +0000
commit1264df3a5da0b4ba93aa3f250a20101bcc19e1ca (patch)
treeec96c7e83c6ea2756e246d730c9ceddb9ea8a1d6 /sbin/photurisd/photuris_spi_needed.c
parentbf316445157edd81f8d5e3f6e30d26fe295990bb (diff)
move ipsec tools into .
Diffstat (limited to 'sbin/photurisd/photuris_spi_needed.c')
-rw-r--r--sbin/photurisd/photuris_spi_needed.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/sbin/photurisd/photuris_spi_needed.c b/sbin/photurisd/photuris_spi_needed.c
new file mode 100644
index 00000000000..e858c44919b
--- /dev/null
+++ b/sbin/photurisd/photuris_spi_needed.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Niels Provos.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*
+ * photuris_spi_needed:
+ *
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id: photuris_spi_needed.c,v 1.1 1998/11/14 23:37:27 deraadt Exp $";
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include "config.h"
+#include "packets.h"
+#include "state.h"
+#include "validity.h"
+#include "encrypt.h"
+
+int
+photuris_spi_needed(struct stateob *st, u_char *buffer, int *size,
+ u_int8_t *attributes, u_int16_t attribsize)
+{
+ struct spi_needed *header;
+ u_int16_t rsize, asize, tmp;
+ u_int8_t *p;
+
+ rsize = *size;
+ if (rsize < SPI_NEEDED_MIN)
+ return -1; /* buffer not large enough */
+
+ asize = SPI_NEEDED_MIN; /* Actual size */
+ rsize -= asize; /* Remaining size */
+
+ header = (struct spi_needed *) buffer;
+ header->type = SPI_NEEDED;
+
+ bzero(header->reserved, sizeof(header->reserved));
+
+ /* Copy the cookies */
+ bcopy(st->icookie, header->icookie, COOKIE_SIZE);
+ bcopy(st->rcookie, header->rcookie, COOKIE_SIZE);
+
+ p = SPI_NEEDED_VERIFICATION(header);
+
+ /* Leave space for verification data */
+ tmp = get_validity_verification_size(st);
+
+ if (rsize < tmp)
+ return -1; /* buffer not large enough */
+
+ p += tmp; asize += tmp; rsize -= tmp;
+
+ if (rsize < attribsize)
+ return -1; /* buffer not large enough */
+
+ /* Copy attributes and padding */
+ bcopy(attributes, p, attribsize);
+ asize += attribsize;
+ rsize -= attribsize;
+ p += attribsize;
+
+ tmp = rsize;
+ if(packet_create_padding(st, asize - SPI_NEEDED_MIN, p, &tmp) == -1)
+ return -1;
+
+ p += tmp; asize += tmp; rsize -= tmp;
+
+ /* Create verification data */
+ create_validity_verification(st,SPI_UPDATE_VERIFICATION(header),
+ (u_int8_t *)header,asize);
+
+ /* Encrypt the packet after header if wished for */
+ packet_encrypt(st, SPI_NEEDED_VERIFICATION(header),
+ asize - SPI_NEEDED_MIN);
+
+ *size = asize;
+ return 0;
+}