[thirdparty/cups.git] / scheduler / cert.c

/*
 * "$Id$"
 *
 *   Authentication certificate routines for the CUPS scheduler.
 *
 *   Copyright 2007-2012 by Apple Inc.
 *   Copyright 1997-2006 by Easy Software Products.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Apple Inc. and are protected by Federal copyright
 *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
 *   which should have been included with this file.  If this file is
 *   file is missing or damaged, see the license at "http://www.cups.org/".
 *
 * Contents:
 *
 *   cupsdAddCert()        - Add a certificate.
 *   cupsdDeleteCert()     - Delete a single certificate.
 *   cupsdDeleteAllCerts() - Delete all certificates...
 *   cupsdFindCert()       - Find a certificate.
 *   cupsdInitCerts()      - Initialize the certificate "system" and root
 *                           certificate.
 */

/*
 * Include necessary headers...
 */

#include "cupsd.h"
#ifdef HAVE_ACL_INIT
#  include <sys/acl.h>
#  ifdef HAVE_MEMBERSHIP_H
#    include <membership.h>
#  endif /* HAVE_MEMBERSHIP_H */
#endif /* HAVE_ACL_INIT */


/*
 * 'cupsdAddCert()' - Add a certificate.
 */

void
cupsdAddCert(int        pid,		/* I - Process ID */
             const char *username,	/* I - Username */
             int        type)		/* I - AuthType for username */
{
  int		i;			/* Looping var */
  cupsd_cert_t	*cert;			/* Current certificate */
  int		fd;			/* Certificate file */
  char		filename[1024];		/* Certificate filename */
  static const char hex[] = "0123456789ABCDEF";
					/* Hex constants... */


  cupsdLogMessage(CUPSD_LOG_DEBUG2,
                  "cupsdAddCert: Adding certificate for PID %d", pid);

 /*
  * Allocate memory for the certificate...
  */

  if ((cert = calloc(sizeof(cupsd_cert_t), 1)) == NULL)
    return;

 /*
  * Fill in the certificate information...
  */

  cert->pid  = pid;
  cert->type = type;
  strlcpy(cert->username, username, sizeof(cert->username));

  for (i = 0; i < 32; i ++)
    cert->certificate[i] = hex[CUPS_RAND() & 15];

 /*
  * Save the certificate to a file readable only by the User and Group
  * (or root and SystemGroup for PID == 0)...
  */

  snprintf(filename, sizeof(filename), "%s/certs/%d", StateDir, pid);
  unlink(filename);

  if ((fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0400)) < 0)
  {
    cupsdLogMessage(CUPSD_LOG_ERROR,
                    "Unable to create certificate file %s - %s",
                    filename, strerror(errno));
    free(cert);
    return;
  }

  if (pid == 0)
  {
#ifdef HAVE_ACL_INIT
    acl_t		acl;		/* ACL information */
    acl_entry_t		entry;		/* ACL entry */
    acl_permset_t	permset;	/* Permissions */
#  ifdef HAVE_MBR_UID_TO_UUID
    uuid_t		group;		/* Group ID */
#  endif /* HAVE_MBR_UID_TO_UUID */
    static int		acls_not_supported = 0;
					/* Only warn once */
#endif /* HAVE_ACL_INIT */


   /*
    * Root certificate...
    */

    fchmod(fd, 0440);
    fchown(fd, RunUser, SystemGroupIDs[0]);

    cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddCert: NumSystemGroups=%d",
                    NumSystemGroups);

#ifdef HAVE_ACL_INIT
    if (NumSystemGroups > 1)
    {
     /*
      * Set POSIX ACLs for the root certificate so that all system
      * groups can access it...
      */

      int	j;			/* Looping var */

#  ifdef HAVE_MBR_UID_TO_UUID
     /*
      * On MacOS X, ACLs use UUIDs instead of GIDs...
      */

      acl = acl_init(NumSystemGroups - 1);

      for (i = 1; i < NumSystemGroups; i ++)
      {
       /*
        * Add each group ID to the ACL...
	*/

        for (j = 0; j < i; j ++)
	  if (SystemGroupIDs[j] == SystemGroupIDs[i])
            break;

        if (j < i)
          continue;			/* Skip duplicate groups */

        acl_create_entry(&acl, &entry);
	acl_get_permset(entry, &permset);
	acl_add_perm(permset, ACL_READ_DATA);
	acl_set_tag_type(entry, ACL_EXTENDED_ALLOW);
	mbr_gid_to_uuid((gid_t)SystemGroupIDs[i], group);
	acl_set_qualifier(entry, &group);
	acl_set_permset(entry, permset);
      }

#  else
     /*
      * POSIX ACLs need permissions for owner, group, other, and mask
      * in addition to the rest of the system groups...
      */

      acl = acl_init(NumSystemGroups + 3);

      /* Owner */
      acl_create_entry(&acl, &entry);
      acl_get_permset(entry, &permset);
      acl_add_perm(permset, ACL_READ);
      acl_set_tag_type(entry, ACL_USER_OBJ);
      acl_set_permset(entry, permset);

      /* Group */
      acl_create_entry(&acl, &entry);
      acl_get_permset(entry, &permset);
      acl_add_perm(permset, ACL_READ);
      acl_set_tag_type(entry, ACL_GROUP_OBJ);
      acl_set_permset(entry, permset);

      /* Others */
      acl_create_entry(&acl, &entry);
      acl_get_permset(entry, &permset);
      acl_add_perm(permset, 0);
      acl_set_tag_type(entry, ACL_OTHER);
      acl_set_permset(entry, permset);

      /* Mask */
      acl_create_entry(&acl, &entry);
      acl_get_permset(entry, &permset);
      acl_add_perm(permset, ACL_READ);
      acl_set_tag_type(entry, ACL_MASK);
      acl_set_permset(entry, permset);

      for (i = 1; i < NumSystemGroups; i ++)
      {
       /*
        * Add each group ID to the ACL...
	*/

        for (j = 0; j < i; j ++)
	  if (SystemGroupIDs[j] == SystemGroupIDs[i])
            break;

        if (j < i)
          continue;			/* Skip duplicate groups */

        acl_create_entry(&acl, &entry);
	acl_get_permset(entry, &permset);
	acl_add_perm(permset, ACL_READ);
	acl_set_tag_type(entry, ACL_GROUP);
	acl_set_qualifier(entry, SystemGroupIDs + i);
	acl_set_permset(entry, permset);
      }

      if (acl_valid(acl))
      {
        char *text, *textptr;		/* Temporary string */

        cupsdLogMessage(CUPSD_LOG_ERROR, "ACL did not validate: %s",
	                strerror(errno));
        text = acl_to_text(acl, NULL);
	for (textptr = strchr(text, '\n');
	     textptr;
	     textptr = strchr(textptr + 1, '\n'))
	  *textptr = ',';

	cupsdLogMessage(CUPSD_LOG_ERROR, "ACL: %s", text);
	acl_free(text);
      }
#  endif /* HAVE_MBR_UID_TO_UUID */

      if (acl_set_fd(fd, acl))
      {
	if (errno != EOPNOTSUPP || !acls_not_supported)
	  cupsdLogMessage(CUPSD_LOG_ERROR,
			  "Unable to set ACLs on root certificate \"%s\" - %s",
			  filename, strerror(errno));

	if (errno == EOPNOTSUPP)
	  acls_not_supported = 1;
      }

      acl_free(acl);
    }
#endif /* HAVE_ACL_INIT */

    RootCertTime = time(NULL);
  }
  else
  {
   /*
    * CGI certificate...
    */

    fchmod(fd, 0400);
    fchown(fd, User, Group);
  }

  DEBUG_printf(("ADD pid=%d, username=%s, cert=%s\n", pid, username,
                cert->certificate));

  write(fd, cert->certificate, strlen(cert->certificate));
  close(fd);

 /*
  * Insert the certificate at the front of the list...
  */

  cert->next = Certs;
  Certs      = cert;
}


/*
 * 'cupsdDeleteCert()' - Delete a single certificate.
 */

void
cupsdDeleteCert(int pid)		/* I - Process ID */
{
  cupsd_cert_t	*cert,			/* Current certificate */
		*prev;			/* Previous certificate */
  char		filename[1024];		/* Certificate file */


  for (prev = NULL, cert = Certs; cert != NULL; prev = cert, cert = cert->next)
    if (cert->pid == pid)
    {
     /*
      * Remove this certificate from the list...
      */

      cupsdLogMessage(CUPSD_LOG_DEBUG2,
                      "cupsdDeleteCert: Removing certificate for PID %d", pid);

      DEBUG_printf(("DELETE pid=%d, username=%s, cert=%s\n", cert->pid,
                    cert->username, cert->certificate));

      if (prev == NULL)
        Certs = cert->next;
      else
        prev->next = cert->next;

      free(cert);

     /*
      * Delete the file and return...
      */

      snprintf(filename, sizeof(filename), "%s/certs/%d", StateDir, pid);
      if (unlink(filename))
	cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to remove %s!", filename);

      return;
    }
}


/*
 * 'cupsdDeleteAllCerts()' - Delete all certificates...
 */

void
cupsdDeleteAllCerts(void)
{
  cupsd_cert_t	*cert,			/* Current certificate */
		*next;			/* Next certificate */
  char		filename[1024];		/* Certificate file */


 /*
  * Loop through each certificate, deleting them...
  */

  for (cert = Certs; cert != NULL; cert = next)
  {
   /*
    * Delete the file...
    */

    snprintf(filename, sizeof(filename), "%s/certs/%d", StateDir, cert->pid);
    if (unlink(filename))
      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to remove %s!", filename);

   /*
    * Free memory...
    */

    next = cert->next;
    free(cert);
  }

  Certs        = NULL;
  RootCertTime = 0;
}


/*
 * 'cupsdFindCert()' - Find a certificate.
 */

cupsd_cert_t *				/* O - Matching certificate or NULL */
cupsdFindCert(const char *certificate)	/* I - Certificate */
{
  cupsd_cert_t	*cert;			/* Current certificate */


  cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindCert(certificate=%s)",
                  certificate);
  for (cert = Certs; cert != NULL; cert = cert->next)
    if (!_cups_strcasecmp(certificate, cert->certificate))
    {
      cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindCert: Returning %s...",
                      cert->username);
      return (cert);
    }

  cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindCert: Certificate not found!");

  return (NULL);
}


/*
 * 'cupsdInitCerts()' - Initialize the certificate "system" and root
 *                      certificate.
 */

void
cupsdInitCerts(void)
{
#ifndef HAVE_ARC4RANDOM
  cups_file_t	*fp;			/* /dev/random file */


 /*
  * Initialize the random number generator using the random device or
  * the current time, as available...
  */

  if ((fp = cupsFileOpen("/dev/urandom", "rb")) == NULL)
  {
    struct timeval tod;			/* Time of day */

   /*
    * Get the time in usecs and use it as the initial seed...
    */

    gettimeofday(&tod, NULL);

    CUPS_SRAND((unsigned)(tod.tv_sec + tod.tv_usec));
  }
  else
  {
    unsigned	seed;			/* Seed for random number generator */

   /*
    * Read 4 random characters from the random device and use
    * them as the seed...
    */

    seed = cupsFileGetChar(fp);
    seed = (seed << 8) | cupsFileGetChar(fp);
    seed = (seed << 8) | cupsFileGetChar(fp);
    CUPS_SRAND((seed << 8) | cupsFileGetChar(fp));

    cupsFileClose(fp);
  }
#endif /* !HAVE_ARC4RANDOM */

 /*
  * Create a root certificate and return...
  */

  if (!RunUser)
    cupsdAddCert(0, "root", cupsdDefaultAuthType());
}


/*
 * End of "$Id$".
 */
Commit	Line	Data
ef416fc2	1	/*
f2d18633	2	* "$Id$"
ef416fc2	3	*
10d09e33	4	* Authentication certificate routines for the CUPS scheduler.
ef416fc2	5	*
0fa6c7fa	6	* Copyright 2007-2012 by Apple Inc.
bd7854cb	7	* Copyright 1997-2006 by Easy Software Products.
ef416fc2	8	*
ef416fc2	9	* These coded instructions, statements, and computer programs are the
bc44d920	10	* property of Apple Inc. and are protected by Federal copyright
	11	* law. Distribution and use rights are outlined in the file "LICENSE.txt"
	12	* which should have been included with this file. If this file is
	13	* file is missing or damaged, see the license at "http://www.cups.org/".
ef416fc2	14	*
	15	* Contents:
	16	*
	17	* cupsdAddCert() - Add a certificate.
	18	* cupsdDeleteCert() - Delete a single certificate.
	19	* cupsdDeleteAllCerts() - Delete all certificates...
	20	* cupsdFindCert() - Find a certificate.
	21	* cupsdInitCerts() - Initialize the certificate "system" and root
	22	* certificate.
	23	*/
	24
	25	/*
	26	* Include necessary headers...
	27	*/
	28
	29	#include "cupsd.h"
fa73b229	30	#ifdef HAVE_ACL_INIT
fa73b229	31	# include <sys/acl.h>
bd7854cb	32	# ifdef HAVE_MEMBERSHIP_H
	33	# include <membership.h>
	34	# endif /* HAVE_MEMBERSHIP_H */
fa73b229	35	#endif /* HAVE_ACL_INIT */
ef416fc2	36
	37
	38	/*
	39	* 'cupsdAddCert()' - Add a certificate.
	40	*/
	41
	42	void
	43	cupsdAddCert(int pid, /* I - Process ID */
5bd77a73	44	const char username, / I - Username */
0fa6c7fa	45	int type) /* I - AuthType for username */
ef416fc2	46	{
	47	int i; /* Looping var */
	48	cupsd_cert_t cert; / Current certificate */
	49	int fd; /* Certificate file */
	50	char filename[1024]; /* Certificate filename */
	51	static const char hex[] = "0123456789ABCDEF";
	52	/* Hex constants... */
	53
	54
	55	cupsdLogMessage(CUPSD_LOG_DEBUG2,
b9faaae1	56	"cupsdAddCert: Adding certificate for PID %d", pid);
ef416fc2	57
	58	/*
	59	* Allocate memory for the certificate...
	60	*/
	61
	62	if ((cert = calloc(sizeof(cupsd_cert_t), 1)) == NULL)
	63	return;
	64
	65	/*
	66	* Fill in the certificate information...
	67	*/
	68
0fa6c7fa MS	69	cert->pid = pid;
0fa6c7fa MS	70	cert->type = type;
ef416fc2	71	strlcpy(cert->username, username, sizeof(cert->username));
	72
	73	for (i = 0; i < 32; i ++)
41681883	74	cert->certificate[i] = hex[CUPS_RAND() & 15];
ef416fc2	75
	76	/*
	77	* Save the certificate to a file readable only by the User and Group
	78	* (or root and SystemGroup for PID == 0)...
	79	*/
	80
	81	snprintf(filename, sizeof(filename), "%s/certs/%d", StateDir, pid);
	82	unlink(filename);
	83
	84	if ((fd = open(filename, O_WRONLY \| O_CREAT \| O_EXCL, 0400)) < 0)
	85	{
	86	cupsdLogMessage(CUPSD_LOG_ERROR,
b9faaae1	87	"Unable to create certificate file %s - %s",
ef416fc2	88	filename, strerror(errno));
	89	free(cert);
	90	return;
	91	}
	92
	93	if (pid == 0)
	94	{
fa73b229	95	#ifdef HAVE_ACL_INIT
	96	acl_t acl; /* ACL information */
	97	acl_entry_t entry; /* ACL entry */
	98	acl_permset_t permset; /* Permissions */
bd7854cb	99	# ifdef HAVE_MBR_UID_TO_UUID
fa73b229	100	uuid_t group; /* Group ID */
bd7854cb	101	# endif /* HAVE_MBR_UID_TO_UUID */
e53920b9	102	static int acls_not_supported = 0;
e53920b9	103	/* Only warn once */
fa73b229	104	#endif /* HAVE_ACL_INIT */
	105
	106
ef416fc2	107	/*
	108	* Root certificate...
	109	*/
	110
	111	fchmod(fd, 0440);
	112	fchown(fd, RunUser, SystemGroupIDs[0]);
	113
bd7854cb	114	cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAddCert: NumSystemGroups=%d",
	115	NumSystemGroups);
	116
fa73b229	117	#ifdef HAVE_ACL_INIT
	118	if (NumSystemGroups > 1)
	119	{
	120	/*
	121	* Set POSIX ACLs for the root certificate so that all system
	122	* groups can access it...
	123	*/
	124
12f89d24 MS	125	int j; /* Looping var */
12f89d24 MS	126
bd7854cb	127	# ifdef HAVE_MBR_UID_TO_UUID
	128	/*
	129	* On MacOS X, ACLs use UUIDs instead of GIDs...
	130	*/
	131
fa73b229	132	acl = acl_init(NumSystemGroups - 1);
	133
	134	for (i = 1; i < NumSystemGroups; i ++)
	135	{
	136	/*
	137	* Add each group ID to the ACL...
	138	*/
	139
12f89d24 MS	140	for (j = 0; j < i; j ++)
	141	if (SystemGroupIDs[j] == SystemGroupIDs[i])
	142	break;
	143
	144	if (j < i)
	145	continue; /* Skip duplicate groups */
	146
fa73b229	147	acl_create_entry(&acl, &entry);
	148	acl_get_permset(entry, &permset);
	149	acl_add_perm(permset, ACL_READ_DATA);
	150	acl_set_tag_type(entry, ACL_EXTENDED_ALLOW);
	151	mbr_gid_to_uuid((gid_t)SystemGroupIDs[i], group);
	152	acl_set_qualifier(entry, &group);
	153	acl_set_permset(entry, permset);
	154	}
12f89d24	155
bd7854cb	156	# else
	157	/*
	158	* POSIX ACLs need permissions for owner, group, other, and mask
	159	* in addition to the rest of the system groups...
	160	*/
	161
	162	acl = acl_init(NumSystemGroups + 3);
	163
	164	/* Owner */
	165	acl_create_entry(&acl, &entry);
	166	acl_get_permset(entry, &permset);
	167	acl_add_perm(permset, ACL_READ);
	168	acl_set_tag_type(entry, ACL_USER_OBJ);
	169	acl_set_permset(entry, permset);
	170
	171	/* Group */
	172	acl_create_entry(&acl, &entry);
	173	acl_get_permset(entry, &permset);
	174	acl_add_perm(permset, ACL_READ);
	175	acl_set_tag_type(entry, ACL_GROUP_OBJ);
	176	acl_set_permset(entry, permset);
	177
	178	/* Others */
	179	acl_create_entry(&acl, &entry);
	180	acl_get_permset(entry, &permset);
4744bd90	181	acl_add_perm(permset, 0);
bd7854cb	182	acl_set_tag_type(entry, ACL_OTHER);
	183	acl_set_permset(entry, permset);
	184
	185	/* Mask */
	186	acl_create_entry(&acl, &entry);
	187	acl_get_permset(entry, &permset);
	188	acl_add_perm(permset, ACL_READ);
	189	acl_set_tag_type(entry, ACL_MASK);
	190	acl_set_permset(entry, permset);
	191
	192	for (i = 1; i < NumSystemGroups; i ++)
	193	{
	194	/*
	195	* Add each group ID to the ACL...
	196	*/
	197
12f89d24 MS	198	for (j = 0; j < i; j ++)
	199	if (SystemGroupIDs[j] == SystemGroupIDs[i])
	200	break;
	201
	202	if (j < i)
	203	continue; /* Skip duplicate groups */
	204
bd7854cb	205	acl_create_entry(&acl, &entry);
	206	acl_get_permset(entry, &permset);
	207	acl_add_perm(permset, ACL_READ);
	208	acl_set_tag_type(entry, ACL_GROUP);
	209	acl_set_qualifier(entry, SystemGroupIDs + i);
	210	acl_set_permset(entry, permset);
	211	}
	212
	213	if (acl_valid(acl))
	214	{
e53920b9	215	char text, textptr; /* Temporary string */
e53920b9	216
bd7854cb	217	cupsdLogMessage(CUPSD_LOG_ERROR, "ACL did not validate: %s",
	218	strerror(errno));
	219	text = acl_to_text(acl, NULL);
	220	for (textptr = strchr(text, '\n');
	221	textptr;
	222	textptr = strchr(textptr + 1, '\n'))
	223	*textptr = ',';
	224
	225	cupsdLogMessage(CUPSD_LOG_ERROR, "ACL: %s", text);
a2326b5b	226	acl_free(text);
bd7854cb	227	}
bd7854cb	228	# endif /* HAVE_MBR_UID_TO_UUID */
fa73b229	229
fa73b229	230	if (acl_set_fd(fd, acl))
e53920b9	231	{
	232	if (errno != EOPNOTSUPP \|\| !acls_not_supported)
	233	cupsdLogMessage(CUPSD_LOG_ERROR,
	234	"Unable to set ACLs on root certificate \"%s\" - %s",
	235	filename, strerror(errno));
	236
	237	if (errno == EOPNOTSUPP)
	238	acls_not_supported = 1;
	239	}
	240
fa73b229	241	acl_free(acl);
	242	}
	243	#endif /* HAVE_ACL_INIT */
	244
ef416fc2	245	RootCertTime = time(NULL);
	246	}
	247	else
	248	{
	249	/*
	250	* CGI certificate...
	251	*/
	252
	253	fchmod(fd, 0400);
	254	fchown(fd, User, Group);
	255	}
	256
	257	DEBUG_printf(("ADD pid=%d, username=%s, cert=%s\n", pid, username,
	258	cert->certificate));
	259
	260	write(fd, cert->certificate, strlen(cert->certificate));
	261	close(fd);
	262
	263	/*
	264	* Insert the certificate at the front of the list...
	265	*/
	266
	267	cert->next = Certs;
	268	Certs = cert;
	269	}
	270
	271
	272	/*
	273	* 'cupsdDeleteCert()' - Delete a single certificate.
	274	*/
	275
	276	void
	277	cupsdDeleteCert(int pid) /* I - Process ID */
	278	{
	279	cupsd_cert_t cert, / Current certificate */
	280	prev; / Previous certificate */
	281	char filename[1024]; /* Certificate file */
	282
	283
	284	for (prev = NULL, cert = Certs; cert != NULL; prev = cert, cert = cert->next)
	285	if (cert->pid == pid)
	286	{
	287	/*
	288	* Remove this certificate from the list...
	289	*/
	290
	291	cupsdLogMessage(CUPSD_LOG_DEBUG2,
b9faaae1	292	"cupsdDeleteCert: Removing certificate for PID %d", pid);
ef416fc2	293
	294	DEBUG_printf(("DELETE pid=%d, username=%s, cert=%s\n", cert->pid,
	295	cert->username, cert->certificate));
	296
	297	if (prev == NULL)
	298	Certs = cert->next;
	299	else
	300	prev->next = cert->next;
	301
	302	free(cert);
	303
	304	/*
	305	* Delete the file and return...
	306	*/
	307
	308	snprintf(filename, sizeof(filename), "%s/certs/%d", StateDir, pid);
	309	if (unlink(filename))
b9faaae1	310	cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to remove %s!", filename);
ef416fc2	311
	312	return;
	313	}
	314	}
	315
	316
	317	/*
	318	* 'cupsdDeleteAllCerts()' - Delete all certificates...
	319	*/
	320
	321	void
	322	cupsdDeleteAllCerts(void)
	323	{
	324	cupsd_cert_t cert, / Current certificate */
	325	next; / Next certificate */
	326	char filename[1024]; /* Certificate file */
	327
	328
	329	/*
	330	* Loop through each certificate, deleting them...
	331	*/
	332
	333	for (cert = Certs; cert != NULL; cert = next)
	334	{
	335	/*
	336	* Delete the file...
	337	*/
	338
	339	snprintf(filename, sizeof(filename), "%s/certs/%d", StateDir, cert->pid);
	340	if (unlink(filename))
b9faaae1	341	cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to remove %s!", filename);
ef416fc2	342
	343	/*
	344	* Free memory...
	345	*/
	346
	347	next = cert->next;
	348	free(cert);
	349	}
	350
e1d6a774	351	Certs = NULL;
e1d6a774	352	RootCertTime = 0;
ef416fc2	353	}
	354
	355
	356	/*
	357	* 'cupsdFindCert()' - Find a certificate.
	358	*/
	359
db0bd74a	360	cupsd_cert_t * /* O - Matching certificate or NULL */
ef416fc2	361	cupsdFindCert(const char certificate) / I - Certificate */
	362	{
	363	cupsd_cert_t cert; / Current certificate */
	364
	365
b9faaae1 MS	366	cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindCert(certificate=%s)",
b9faaae1 MS	367	certificate);
ef416fc2	368	for (cert = Certs; cert != NULL; cert = cert->next)
88f9aafc	369	if (!_cups_strcasecmp(certificate, cert->certificate))
ef416fc2	370	{
b9faaae1 MS	371	cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindCert: Returning %s...",
b9faaae1 MS	372	cert->username);
db0bd74a	373	return (cert);
ef416fc2	374	}
ef416fc2	375
b9faaae1	376	cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindCert: Certificate not found!");
ef416fc2	377
	378	return (NULL);
	379	}
	380
	381
	382	/*
	383	* 'cupsdInitCerts()' - Initialize the certificate "system" and root
	384	* certificate.
	385	*/
	386
	387	void
	388	cupsdInitCerts(void)
	389	{
f8b3a85b	390	#ifndef HAVE_ARC4RANDOM
ef416fc2	391	cups_file_t fp; / /dev/random file */
ef416fc2	392
	393
	394	/*
	395	* Initialize the random number generator using the random device or
	396	* the current time, as available...
	397	*/
	398
	399	if ((fp = cupsFileOpen("/dev/urandom", "rb")) == NULL)
	400	{
f8b3a85b MS	401	struct timeval tod; /* Time of day */
f8b3a85b MS	402
ef416fc2	403	/*
	404	* Get the time in usecs and use it as the initial seed...
	405	*/
	406
	407	gettimeofday(&tod, NULL);
	408
f8b3a85b	409	CUPS_SRAND((unsigned)(tod.tv_sec + tod.tv_usec));
ef416fc2	410	}
	411	else
	412	{
f8b3a85b MS	413	unsigned seed; /* Seed for random number generator */
f8b3a85b MS	414
ef416fc2	415	/*
	416	* Read 4 random characters from the random device and use
	417	* them as the seed...
	418	*/
	419
	420	seed = cupsFileGetChar(fp);
	421	seed = (seed << 8) \| cupsFileGetChar(fp);
	422	seed = (seed << 8) \| cupsFileGetChar(fp);
f8b3a85b	423	CUPS_SRAND((seed << 8) \| cupsFileGetChar(fp));
ef416fc2	424
	425	cupsFileClose(fp);
	426	}
f8b3a85b	427	#endif /* !HAVE_ARC4RANDOM */
ef416fc2	428
	429	/*
	430	* Create a root certificate and return...
	431	*/
	432
	433	if (!RunUser)
0fa6c7fa	434	cupsdAddCert(0, "root", cupsdDefaultAuthType());
ef416fc2	435	}
	436
	437
	438	/*
f2d18633	439	* End of "$Id$".
ef416fc2	440	*/