summaryrefslogtreecommitdiffstats
path: root/security/nss/lib/util/dertime.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /security/nss/lib/util/dertime.c
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'security/nss/lib/util/dertime.c')
-rw-r--r--security/nss/lib/util/dertime.c310
1 files changed, 310 insertions, 0 deletions
diff --git a/security/nss/lib/util/dertime.c b/security/nss/lib/util/dertime.c
new file mode 100644
index 0000000000..273ab345e5
--- /dev/null
+++ b/security/nss/lib/util/dertime.c
@@ -0,0 +1,310 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "prtypes.h"
+#include "prtime.h"
+#include "secder.h"
+#include "prlong.h"
+#include "secerr.h"
+
+#define HIDIGIT(v) (((v) / 10) + '0')
+#define LODIGIT(v) (((v) % 10) + '0')
+
+#define ISDIGIT(dig) (((dig) >= '0') && ((dig) <= '9'))
+#define CAPTURE(var, p, label) \
+ { \
+ if (!ISDIGIT((p)[0]) || !ISDIGIT((p)[1])) \
+ goto label; \
+ (var) = ((p)[0] - '0') * 10 + ((p)[1] - '0'); \
+ p += 2; \
+ }
+
+static const PRTime January1st1 = PR_INT64(0xff23400100d44000);
+static const PRTime January1st1950 = PR_INT64(0xfffdc1f8793da000);
+static const PRTime January1st2050 = PR_INT64(0x0008f81e1b098000);
+static const PRTime January1st10000 = PR_INT64(0x0384440ccc736000);
+
+/* gmttime must contains UTC time in micro-seconds unit */
+SECStatus
+DER_TimeToUTCTimeArena(PLArenaPool *arenaOpt, SECItem *dst, PRTime gmttime)
+{
+ PRExplodedTime printableTime;
+ unsigned char *d;
+
+ if ((gmttime < January1st1950) || (gmttime >= January1st2050)) {
+ PORT_SetError(SEC_ERROR_INVALID_ARGS);
+ return SECFailure;
+ }
+
+ dst->len = 13;
+ if (arenaOpt) {
+ dst->data = d = (unsigned char *)PORT_ArenaAlloc(arenaOpt, dst->len);
+ } else {
+ dst->data = d = (unsigned char *)PORT_Alloc(dst->len);
+ }
+ dst->type = siUTCTime;
+ if (!d) {
+ return SECFailure;
+ }
+
+ /* Convert a PRTime to a printable format. */
+ PR_ExplodeTime(gmttime, PR_GMTParameters, &printableTime);
+
+ /* The month in UTC time is base one */
+ printableTime.tm_month++;
+
+ /* remove the century since it's added to the tm_year by the
+ PR_ExplodeTime routine, but is not needed for UTC time */
+ printableTime.tm_year %= 100;
+
+ d[0] = HIDIGIT(printableTime.tm_year);
+ d[1] = LODIGIT(printableTime.tm_year);
+ d[2] = HIDIGIT(printableTime.tm_month);
+ d[3] = LODIGIT(printableTime.tm_month);
+ d[4] = HIDIGIT(printableTime.tm_mday);
+ d[5] = LODIGIT(printableTime.tm_mday);
+ d[6] = HIDIGIT(printableTime.tm_hour);
+ d[7] = LODIGIT(printableTime.tm_hour);
+ d[8] = HIDIGIT(printableTime.tm_min);
+ d[9] = LODIGIT(printableTime.tm_min);
+ d[10] = HIDIGIT(printableTime.tm_sec);
+ d[11] = LODIGIT(printableTime.tm_sec);
+ d[12] = 'Z';
+ return SECSuccess;
+}
+
+SECStatus
+DER_TimeToUTCTime(SECItem *dst, PRTime gmttime)
+{
+ return DER_TimeToUTCTimeArena(NULL, dst, gmttime);
+}
+
+static SECStatus /* forward */
+der_TimeStringToTime(PRTime *dst, const char *string, int generalized,
+ const char **endptr);
+
+#define GEN_STRING 2 /* TimeString is a GeneralizedTime */
+#define UTC_STRING 0 /* TimeString is a UTCTime */
+
+/* The caller of DER_AsciiToItem MUST ENSURE that either
+** a) "string" points to a null-terminated ASCII string, or
+** b) "string" points to a buffer containing a valid UTCTime,
+** whether null terminated or not, or
+** c) "string" contains at least 19 characters, with or without null char.
+** otherwise, this function may UMR and/or crash.
+** It suffices to ensure that the input "string" is at least 17 bytes long.
+*/
+SECStatus
+DER_AsciiToTime(PRTime *dst, const char *string)
+{
+ return der_TimeStringToTime(dst, string, UTC_STRING, NULL);
+}
+
+SECStatus
+DER_UTCTimeToTime(PRTime *dst, const SECItem *time)
+{
+ /* Minimum valid UTCTime is yymmddhhmmZ which is 11 bytes.
+ ** Maximum valid UTCTime is yymmddhhmmss+0000 which is 17 bytes.
+ ** 20 should be large enough for all valid encoded times.
+ */
+ unsigned int i;
+ char localBuf[20];
+ const char *end = NULL;
+ SECStatus rv;
+
+ if (!time || !time->data || time->len < 11 || time->len > 17) {
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+ }
+
+ for (i = 0; i < time->len; i++) {
+ if (time->data[i] == '\0') {
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+ }
+ localBuf[i] = time->data[i];
+ }
+ localBuf[i] = '\0';
+
+ rv = der_TimeStringToTime(dst, localBuf, UTC_STRING, &end);
+ if (rv == SECSuccess && *end != '\0') {
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+ }
+ return rv;
+}
+
+/*
+ gmttime must contains UTC time in micro-seconds unit.
+ Note: the caller should make sure that Generalized time
+ should only be used for certifiate validities after the
+ year 2049. Otherwise, UTC time should be used. This routine
+ does not check this case, since it can be used to encode
+ certificate extension, which does not have this restriction.
+ */
+SECStatus
+DER_TimeToGeneralizedTimeArena(PLArenaPool *arenaOpt, SECItem *dst, PRTime gmttime)
+{
+ PRExplodedTime printableTime;
+ unsigned char *d;
+
+ if ((gmttime < January1st1) || (gmttime >= January1st10000)) {
+ PORT_SetError(SEC_ERROR_INVALID_ARGS);
+ return SECFailure;
+ }
+ dst->len = 15;
+ if (arenaOpt) {
+ dst->data = d = (unsigned char *)PORT_ArenaAlloc(arenaOpt, dst->len);
+ } else {
+ dst->data = d = (unsigned char *)PORT_Alloc(dst->len);
+ }
+ dst->type = siGeneralizedTime;
+ if (!d) {
+ return SECFailure;
+ }
+
+ /* Convert a PRTime to a printable format. */
+ PR_ExplodeTime(gmttime, PR_GMTParameters, &printableTime);
+
+ /* The month in Generalized time is base one */
+ printableTime.tm_month++;
+
+ d[0] = (printableTime.tm_year / 1000) + '0';
+ d[1] = ((printableTime.tm_year % 1000) / 100) + '0';
+ d[2] = ((printableTime.tm_year % 100) / 10) + '0';
+ d[3] = (printableTime.tm_year % 10) + '0';
+ d[4] = HIDIGIT(printableTime.tm_month);
+ d[5] = LODIGIT(printableTime.tm_month);
+ d[6] = HIDIGIT(printableTime.tm_mday);
+ d[7] = LODIGIT(printableTime.tm_mday);
+ d[8] = HIDIGIT(printableTime.tm_hour);
+ d[9] = LODIGIT(printableTime.tm_hour);
+ d[10] = HIDIGIT(printableTime.tm_min);
+ d[11] = LODIGIT(printableTime.tm_min);
+ d[12] = HIDIGIT(printableTime.tm_sec);
+ d[13] = LODIGIT(printableTime.tm_sec);
+ d[14] = 'Z';
+ return SECSuccess;
+}
+
+SECStatus
+DER_TimeToGeneralizedTime(SECItem *dst, PRTime gmttime)
+{
+ return DER_TimeToGeneralizedTimeArena(NULL, dst, gmttime);
+}
+
+SECStatus
+DER_GeneralizedTimeToTime(PRTime *dst, const SECItem *time)
+{
+ /* Minimum valid GeneralizedTime is ccyymmddhhmmZ which is 13 bytes.
+ ** Maximum valid GeneralizedTime is ccyymmddhhmmss+0000 which is 19 bytes.
+ ** 20 should be large enough for all valid encoded times.
+ */
+ unsigned int i;
+ char localBuf[20];
+ const char *end = NULL;
+ SECStatus rv;
+
+ if (!time || !time->data || time->len < 13 || time->len > 19) {
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+ }
+
+ for (i = 0; i < time->len; i++) {
+ if (time->data[i] == '\0') {
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+ }
+ localBuf[i] = time->data[i];
+ }
+ localBuf[i] = '\0';
+
+ rv = der_TimeStringToTime(dst, localBuf, GEN_STRING, &end);
+ if (rv == SECSuccess && *end != '\0') {
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+ }
+ return rv;
+}
+
+static SECStatus
+der_TimeStringToTime(PRTime *dst, const char *string, int generalized,
+ const char **endptr)
+{
+ PRExplodedTime genTime;
+ long hourOff = 0, minOff = 0;
+ PRUint16 century;
+ char signum;
+
+ if (string == NULL || dst == NULL) {
+ PORT_SetError(SEC_ERROR_INVALID_ARGS);
+ return SECFailure;
+ }
+
+ /* Verify time is formatted properly and capture information */
+ memset(&genTime, 0, sizeof genTime);
+
+ if (generalized == UTC_STRING) {
+ CAPTURE(genTime.tm_year, string, loser);
+ century = (genTime.tm_year < 50) ? 20 : 19;
+ } else {
+ CAPTURE(century, string, loser);
+ CAPTURE(genTime.tm_year, string, loser);
+ }
+ genTime.tm_year += century * 100;
+
+ CAPTURE(genTime.tm_month, string, loser);
+ if ((genTime.tm_month == 0) || (genTime.tm_month > 12))
+ goto loser;
+
+ /* NSPR month base is 0 */
+ --genTime.tm_month;
+
+ CAPTURE(genTime.tm_mday, string, loser);
+ if ((genTime.tm_mday == 0) || (genTime.tm_mday > 31))
+ goto loser;
+
+ CAPTURE(genTime.tm_hour, string, loser);
+ if (genTime.tm_hour > 23)
+ goto loser;
+
+ CAPTURE(genTime.tm_min, string, loser);
+ if (genTime.tm_min > 59)
+ goto loser;
+
+ if (ISDIGIT(string[0])) {
+ CAPTURE(genTime.tm_sec, string, loser);
+ if (genTime.tm_sec > 59)
+ goto loser;
+ }
+ signum = *string++;
+ if (signum == '+' || signum == '-') {
+ CAPTURE(hourOff, string, loser);
+ if (hourOff > 23)
+ goto loser;
+ CAPTURE(minOff, string, loser);
+ if (minOff > 59)
+ goto loser;
+ if (signum == '-') {
+ hourOff = -hourOff;
+ minOff = -minOff;
+ }
+ } else if (signum != 'Z') {
+ goto loser;
+ }
+
+ if (endptr)
+ *endptr = string;
+
+ /* Convert the GMT offset to seconds and save it in genTime
+ * for the implode time call.
+ */
+ genTime.tm_params.tp_gmt_offset = (PRInt32)((hourOff * 60L + minOff) * 60L);
+ *dst = PR_ImplodeTime(&genTime);
+ return SECSuccess;
+
+loser:
+ PORT_SetError(SEC_ERROR_INVALID_TIME);
+ return SECFailure;
+}