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-rw-r--r--trunk/channels/misdn/ie.c1422
1 files changed, 1422 insertions, 0 deletions
diff --git a/trunk/channels/misdn/ie.c b/trunk/channels/misdn/ie.c
new file mode 100644
index 000000000..817e3d8cb
--- /dev/null
+++ b/trunk/channels/misdn/ie.c
@@ -0,0 +1,1422 @@
+
+/*
+ * Chan_Misdn -- Channel Driver for Asterisk
+ *
+ * Interface to mISDN
+ *
+ * Copyright (C) 2005, Christian Richter
+ *
+ * Christian Richter <crich@beronet.com>
+ *
+ * heaviliy patched from jollys ie.cpp, jolly gave me ALL
+ * rights for this code, i can even have my own copyright on it.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+/*! \file \brief
+ * Interface to mISDN
+ * \author Christian Richter <crich@beronet.com>
+ */
+
+/*
+ the pointer of enc_ie_* always points to the IE itself
+ if qi is not NULL (TE-mode), offset is set
+*/
+
+
+#include <string.h>
+
+#include <mISDNuser/mISDNlib.h>
+#include <mISDNuser/isdn_net.h>
+#include <mISDNuser/l3dss1.h>
+#include <mISDNuser/net_l3.h>
+#include "asterisk/localtime.h"
+
+
+
+#define MISDN_IE_DEBG 0
+
+/* support stuff */
+static void strnncpy(char *dest, char *src, int len, int dst_len)
+{
+ if (len > dst_len-1)
+ len = dst_len-1;
+ strncpy((char *)dest, (char *)src, len);
+ dest[len] = '\0';
+}
+
+
+/* IE_COMPLETE */
+static void enc_ie_complete(unsigned char **ntmode, msg_t *msg, int complete, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+
+ if (complete<0 || complete>1)
+ {
+ printf("%s: ERROR: complete(%d) is out of range.\n", __FUNCTION__, complete);
+ return;
+ }
+
+ if (complete)
+ if (MISDN_IE_DEBG) printf(" complete=%d\n", complete);
+
+ if (complete)
+ {
+ p = msg_put(msg, 1);
+ if (nt)
+ {
+ *ntmode = p;
+ } else
+ qi->QI_ELEMENT(sending_complete) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+
+ p[0] = IE_COMPLETE;
+ }
+}
+
+static void dec_ie_complete(unsigned char *p, Q931_info_t *qi, int *complete, int nt, struct misdn_bchannel *bc)
+{
+ *complete = 0;
+ if (!nt)
+ {
+ if (qi->QI_ELEMENT(sending_complete))
+ *complete = 1;
+ } else
+ if (p)
+ *complete = 1;
+
+ if (*complete)
+ if (MISDN_IE_DEBG) printf(" complete=%d\n", *complete);
+}
+
+
+/* IE_BEARER */
+static void enc_ie_bearer(unsigned char **ntmode, msg_t *msg, int coding, int capability, int mode, int rate, int multi, int user, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (coding<0 || coding>3)
+ {
+ printf("%s: ERROR: coding(%d) is out of range.\n", __FUNCTION__, coding);
+ return;
+ }
+ if (capability<0 || capability>31)
+ {
+ printf("%s: ERROR: capability(%d) is out of range.\n", __FUNCTION__, capability);
+ return;
+ }
+ if (mode<0 || mode>3)
+ {
+ printf("%s: ERROR: mode(%d) is out of range.\n", __FUNCTION__, mode);
+ return;
+ }
+ if (rate<0 || rate>31)
+ {
+ printf("%s: ERROR: rate(%d) is out of range.\n", __FUNCTION__, rate);
+ return;
+ }
+ if (multi>127)
+ {
+ printf("%s: ERROR: multi(%d) is out of range.\n", __FUNCTION__, multi);
+ return;
+ }
+ if (user>31)
+ {
+ printf("%s: ERROR: user L1(%d) is out of range.\n", __FUNCTION__, rate);
+ return;
+ }
+ if (rate!=24 && multi>=0)
+ {
+ printf("%s: WARNING: multi(%d) is only possible if rate(%d) would be 24.\n", __FUNCTION__, multi, rate);
+ multi = -1;
+ }
+
+ if (MISDN_IE_DEBG) printf(" coding=%d capability=%d mode=%d rate=%d multi=%d user=%d\n", coding, capability, mode, rate, multi, user);
+
+ l = 2 + (multi>=0) + (user>=0);
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(bearer_capability) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_BEARER;
+ p[1] = l;
+ p[2] = 0x80 + (coding<<5) + capability;
+ p[3] = 0x80 + (mode<<5) + rate;
+ if (multi >= 0)
+ p[4] = 0x80 + multi;
+ if (user >= 0)
+ p[4+(multi>=0)] = 0xa0 + user;
+}
+
+static void dec_ie_bearer(unsigned char *p, Q931_info_t *qi, int *coding, int *capability, int *mode, int *rate, int *multi, int *user,
+ int *async, int *urate, int *stopbits, int *dbits, int *parity, int nt, struct misdn_bchannel *bc)
+{
+ int octet;
+ *coding = -1;
+ *capability = -1;
+ *mode = -1;
+ *rate = -1;
+ *multi = -1;
+ *user = -1;
+ *async = -1;
+ *urate = -1;
+ *stopbits = -1;
+ *dbits = -1;
+ *parity = -1;
+
+ if (!nt)
+ {
+ p = NULL;
+#ifdef LLC_SUPPORT
+ if (qi->QI_ELEMENT(llc)) {
+
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(llc) + 1;
+ }
+#endif
+ if (qi->QI_ELEMENT(bearer_capability))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(bearer_capability) + 1;
+ }
+ if (!p)
+ return;
+
+ if (p[0] < 2)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *coding = (p[1]&0x60) >> 5;
+ *capability = p[1] & 0x1f;
+ octet = 2;
+ if (!(p[1] & 0x80))
+ octet++;
+
+ if (p[0] < octet)
+ goto done;
+
+ *mode = (p[octet]&0x60) >> 5;
+ *rate = p[octet] & 0x1f;
+
+ octet++;
+
+ if (p[0] < octet)
+ goto done;
+
+ if (*rate == 0x18) {
+ /* Rate multiplier only present if 64Kb/s base rate */
+ *multi = p[octet++] & 0x7f;
+ }
+
+ if (p[0] < octet)
+ goto done;
+
+ /* Start L1 info */
+ if ((p[octet] & 0x60) == 0x20) {
+ *user = p[octet] & 0x1f;
+
+ if (p[0] <= octet)
+ goto done;
+
+ if (p[octet++] & 0x80)
+ goto l2;
+
+ *async = !!(p[octet] & 0x40);
+ /* 0x20 is inband negotiation */
+ *urate = p[octet] & 0x1f;
+
+ if (p[0] <= octet)
+ goto done;
+
+ if (p[octet++] & 0x80)
+ goto l2;
+
+ /* Ignore next byte for now: Intermediate rate, NIC, flow control */
+
+ if (p[0] <= octet)
+ goto done;
+
+ if (p[octet++] & 0x80)
+ goto l2;
+
+ /* And the next one. Header, multiframe, mode, assignor/ee, negotiation */
+
+ if (p[0] <= octet)
+ goto done;
+
+ if (!p[octet++] & 0x80)
+ goto l2;
+
+ /* Wheee. V.110 speed information */
+
+ *stopbits = (p[octet] & 0x60) >> 5;
+ *dbits = (p[octet] & 0x18) >> 3;
+ *parity = p[octet] & 7;
+
+ octet++;
+ }
+ l2: /* Nobody seems to want the rest so we don't bother (yet) */
+ done:
+ if (MISDN_IE_DEBG) printf(" coding=%d capability=%d mode=%d rate=%d multi=%d user=%d async=%d urate=%d stopbits=%d dbits=%d parity=%d\n", *coding, *capability, *mode, *rate, *multi, *user, *async, *urate, *stopbits, *dbits, *parity);
+}
+
+
+/* IE_CALL_ID */
+#if 0
+static void enc_ie_call_id(unsigned char **ntmode, msg_t *msg, char *callid, int callid_len, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ char debug[25];
+ int i;
+
+ if (!callid || callid_len<=0)
+ {
+ return;
+ }
+ if (callid_len>8)
+ {
+ printf("%s: ERROR: callid_len(%d) is out of range.\n", __FUNCTION__, callid_len);
+ return;
+ }
+
+ i = 0;
+ while(i < callid_len)
+ {
+ if (MISDN_IE_DEBG) printf(debug+(i*3), " %02x", callid[i]);
+ i++;
+ }
+
+ if (MISDN_IE_DEBG) printf(" callid%s\n", debug);
+
+ l = callid_len;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(call_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CALL_ID;
+ p[1] = l;
+ memcpy(p+2, callid, callid_len);
+}
+#endif
+
+#if 0
+static void dec_ie_call_id(unsigned char *p, Q931_info_t *qi, char *callid, int *callid_len, int nt, struct misdn_bchannel *bc)
+{
+ char debug[25];
+ int i;
+
+ *callid_len = -1;
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(call_id))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(call_id) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] > 8)
+ {
+ printf("%s: ERROR: IE too long (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *callid_len = p[0];
+ memcpy(callid, p+1, *callid_len);
+
+ i = 0;
+ while(i < *callid_len)
+ {
+ if (MISDN_IE_DEBG) printf(debug+(i*3), " %02x", callid[i]);
+ i++;
+ }
+
+ if (MISDN_IE_DEBG) printf(" callid%s\n", debug);
+}
+#endif
+
+/* IE_CALLED_PN */
+static void enc_ie_called_pn(unsigned char **ntmode, msg_t *msg, int type, int plan, char *number, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (type<0 || type>7)
+ {
+ printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
+ return;
+ }
+ if (plan<0 || plan>15)
+ {
+ printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
+ return;
+ }
+ if (!number[0])
+ {
+ printf("%s: ERROR: number is not given.\n", __FUNCTION__);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d number='%s'\n", type, plan, number);
+
+ l = 1+strlen((char *)number);
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(called_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CALLED_PN;
+ p[1] = l;
+ p[2] = 0x80 + (type<<4) + plan;
+ strncpy((char *)p+3, (char *)number, strlen((char *)number));
+}
+
+static void dec_ie_called_pn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, char *number, int number_len, int nt, struct misdn_bchannel *bc)
+{
+ *type = -1;
+ *plan = -1;
+ *number = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(called_nr))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(called_nr) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 2)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *type = (p[1]&0x70) >> 4;
+ *plan = p[1] & 0xf;
+ strnncpy(number, (char *)p+2, p[0]-1, number_len);
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d number='%s'\n", *type, *plan, number);
+}
+
+
+/* IE_CALLING_PN */
+static void enc_ie_calling_pn(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, int screen, char *number, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (type<0 || type>7)
+ {
+ printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
+ return;
+ }
+ if (plan<0 || plan>15)
+ {
+ printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
+ return;
+ }
+ if (present>3)
+ {
+ printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
+ return;
+ }
+ if (present >= 0) if (screen<0 || screen>3)
+ {
+ printf("%s: ERROR: screen(%d) is out of range.\n", __FUNCTION__, screen);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", type, plan, present, screen, number);
+
+ l = 1;
+ if (number) if (number[0])
+ l += strlen((char *)number);
+ if (present >= 0)
+ l += 1;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(calling_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CALLING_PN;
+ p[1] = l;
+ if (present >= 0)
+ {
+ p[2] = 0x00 + (type<<4) + plan;
+ p[3] = 0x80 + (present<<5) + screen;
+ if (number) if (number[0])
+ strncpy((char *)p+4, (char *)number, strlen((char *)number));
+ } else
+ {
+ p[2] = 0x80 + (type<<4) + plan;
+ if (number) if (number[0])
+ strncpy((char *)p+3, (char *)number, strlen((char *)number));
+ }
+}
+
+static void dec_ie_calling_pn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, int *screen, char *number, int number_len, int nt, struct misdn_bchannel *bc)
+{
+ *type = -1;
+ *plan = -1;
+ *present = -1;
+ *screen = -1;
+ *number = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(calling_nr))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(calling_nr) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *type = (p[1]&0x70) >> 4;
+ *plan = p[1] & 0xf;
+ if (!(p[1] & 0x80))
+ {
+ if (p[0] < 2)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+ *present = (p[2]&0x60) >> 5;
+ *screen = p[2] & 0x3;
+ strnncpy(number, (char *)p+3, p[0]-2, number_len);
+ } else
+ {
+ strnncpy(number, (char *)p+2, p[0]-1, number_len);
+ /* SPECIAL workarround for IBT software bug */
+ /* if (number[0]==0x80) */
+ /* strcpy((char *)number, (char *)number+1); */
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", *type, *plan, *present, *screen, number);
+}
+
+
+/* IE_CONNECTED_PN */
+static void enc_ie_connected_pn(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, int screen, char *number, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (type<0 || type>7)
+ {
+ printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
+ return;
+ }
+ if (plan<0 || plan>15)
+ {
+ printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
+ return;
+ }
+ if (present>3)
+ {
+ printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
+ return;
+ }
+ if (present >= 0) if (screen<0 || screen>3)
+ {
+ printf("%s: ERROR: screen(%d) is out of range.\n", __FUNCTION__, screen);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", type, plan, present, screen, number);
+
+ l = 1;
+ if (number) if (number[0])
+ l += strlen((char *)number);
+ if (present >= 0)
+ l += 1;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(connected_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CONNECT_PN;
+ p[1] = l;
+ if (present >= 0)
+ {
+ p[2] = 0x00 + (type<<4) + plan;
+ p[3] = 0x80 + (present<<5) + screen;
+ if (number) if (number[0])
+ strncpy((char *)p+4, (char *)number, strlen((char *)number));
+ } else
+ {
+ p[2] = 0x80 + (type<<4) + plan;
+ if (number) if (number[0])
+ strncpy((char *)p+3, (char *)number, strlen((char *)number));
+ }
+}
+
+static void dec_ie_connected_pn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, int *screen, char *number, int number_len, int nt, struct misdn_bchannel *bc)
+{
+ *type = -1;
+ *plan = -1;
+ *present = -1;
+ *screen = -1;
+ *number = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(connected_nr))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(connected_nr) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *type = (p[1]&0x70) >> 4;
+ *plan = p[1] & 0xf;
+ if (!(p[1] & 0x80))
+ {
+ if (p[0] < 2)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+ *present = (p[2]&0x60) >> 5;
+ *screen = p[2] & 0x3;
+ strnncpy(number, (char *)p+3, p[0]-2, number_len);
+ } else
+ {
+ strnncpy(number, (char *)p+2, p[0]-1, number_len);
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d number='%s'\n", *type, *plan, *present, *screen, number);
+}
+
+
+/* IE_CAUSE */
+static void enc_ie_cause(unsigned char **ntmode, msg_t *msg, int location, int cause, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (location<0 || location>7)
+ {
+ printf("%s: ERROR: location(%d) is out of range.\n", __FUNCTION__, location);
+ return;
+ }
+ if (cause<0 || cause>127)
+ {
+ printf("%s: ERROR: cause(%d) is out of range.\n", __FUNCTION__, cause);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" location=%d cause=%d\n", location, cause);
+
+ l = 2;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(cause) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CAUSE;
+ p[1] = l;
+ p[2] = 0x80 + location;
+ p[3] = 0x80 + cause;
+}
+
+#if 0
+static void enc_ie_cause_standalone(unsigned char **ntmode, msg_t *msg, int location, int cause, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p = msg_put(msg, 4);
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ if (ntmode)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(cause) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CAUSE;
+ p[1] = 2;
+ p[2] = 0x80 + location;
+ p[3] = 0x80 + cause;
+}
+#endif
+
+static void dec_ie_cause(unsigned char *p, Q931_info_t *qi, int *location, int *cause, int nt, struct misdn_bchannel *bc)
+{
+ *location = -1;
+ *cause = -1;
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(cause))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(cause) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 2)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *location = p[1] & 0x0f;
+ *cause = p[2] & 0x7f;
+
+ if (MISDN_IE_DEBG) printf(" location=%d cause=%d\n", *location, *cause);
+}
+
+
+/* IE_CHANNEL_ID */
+static void enc_ie_channel_id(unsigned char **ntmode, msg_t *msg, int exclusive, int channel, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+ struct misdn_stack *stack=get_stack_by_bc(bc);
+ int pri = stack->pri;
+
+ if (exclusive<0 || exclusive>1)
+ {
+ printf("%s: ERROR: exclusive(%d) is out of range.\n", __FUNCTION__, exclusive);
+ return;
+ }
+ if ((channel<0 || channel>0xff)
+ || (!pri && (channel>2 && channel<0xff))
+ || (pri && (channel>31 && channel<0xff))
+ || (pri && channel==16))
+ {
+ printf("%s: ERROR: channel(%d) is out of range.\n", __FUNCTION__, channel);
+ return;
+ }
+
+ /* if (MISDN_IE_DEBG) printf(" exclusive=%d channel=%d\n", exclusive, channel); */
+
+
+ if (!pri)
+ {
+ /* BRI */
+ l = 1;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(channel_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CHANNEL_ID;
+ p[1] = l;
+ if (channel == 0xff)
+ channel = 3;
+ p[2] = 0x80 + (exclusive<<3) + channel;
+ /* printf(" exclusive=%d channel=%d\n", exclusive, channel); */
+ } else
+ {
+ /* PRI */
+ if (channel == 0) /* no channel */
+ return; /* IE not present */
+/* if (MISDN_IE_DEBG) printf("channel = %d\n", channel); */
+ if (channel == 0xff) /* any channel */
+ {
+ l = 1;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(channel_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CHANNEL_ID;
+ p[1] = l;
+ p[2] = 0x80 + 0x20 + 0x03;
+/* if (MISDN_IE_DEBG) printf("%02x\n", p[2]); */
+ return; /* end */
+ }
+ l = 3;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(channel_id) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_CHANNEL_ID;
+ p[1] = l;
+ p[2] = 0x80 + 0x20 + (exclusive<<3) + 0x01;
+ p[3] = 0x80 + 3; /* CCITT, Number, B-type */
+ p[4] = 0x80 + channel;
+/* if (MISDN_IE_DEBG) printf("%02x %02x %02x\n", p[2], p[3], p[4]); */
+ }
+}
+
+static void dec_ie_channel_id(unsigned char *p, Q931_info_t *qi, int *exclusive, int *channel, int nt, struct misdn_bchannel *bc)
+{
+ struct misdn_stack *stack=get_stack_by_bc(bc);
+ int pri =stack->pri;
+
+ *exclusive = -1;
+ *channel = -1;
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(channel_id))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(channel_id) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ if (p[1] & 0x40)
+ {
+ printf("%s: ERROR: refering to channels of other interfaces is not supported.\n", __FUNCTION__);
+ return;
+ }
+ if (p[1] & 0x04)
+ {
+ printf("%s: ERROR: using d-channel is not supported.\n", __FUNCTION__);
+ return;
+ }
+
+ *exclusive = (p[1]&0x08) >> 3;
+ if (!pri)
+ {
+ /* BRI */
+ if (p[1] & 0x20)
+ {
+ printf("%s: ERROR: extended channel ID with non PRI interface.\n", __FUNCTION__);
+ return;
+ }
+ *channel = p[1] & 0x03;
+ if (*channel == 3)
+ *channel = 0xff;
+ } else
+ {
+ /* PRI */
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short for PRI (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+ if (!(p[1] & 0x20))
+ {
+ printf("%s: ERROR: basic channel ID with PRI interface.\n", __FUNCTION__);
+ return;
+ }
+ if ((p[1]&0x03) == 0x00)
+ {
+ /* no channel */
+ *channel = 0;
+ return;
+ }
+ if ((p[1]&0x03) == 0x03)
+ {
+ /* any channel */
+ *channel = 0xff;
+ return;
+ }
+ if (p[0] < 3)
+ {
+ printf("%s: ERROR: IE too short for PRI with channel(%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+ if (p[2] & 0x10)
+ {
+ printf("%s: ERROR: channel map not supported.\n", __FUNCTION__);
+ return;
+ }
+ *channel = p[3] & 0x7f;
+ if ( (*channel<1) | (*channel==16) | (*channel>31))
+ {
+ printf("%s: ERROR: PRI interface channel out of range (%d).\n", __FUNCTION__, *channel);
+ return;
+ }
+/* if (MISDN_IE_DEBG) printf("%02x %02x %02x\n", p[1], p[2], p[3]); */
+ }
+
+ if (MISDN_IE_DEBG) printf(" exclusive=%d channel=%d\n", *exclusive, *channel);
+}
+
+
+/* IE_DATE */
+static void enc_ie_date(unsigned char **ntmode, msg_t *msg, time_t ti, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+ struct timeval tv = { ti, 0 };
+ struct ast_tm tm;
+
+ ast_localtime(&tv, &tm, NULL);
+ if (MISDN_IE_DEBG) printf(" year=%d month=%d day=%d hour=%d minute=%d\n", tm.tm_year%100, tm.tm_mon+1, tm.tm_mday, tm.tm_hour, tm.tm_min);
+
+ l = 5;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(date) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_DATE;
+ p[1] = l;
+ p[2] = tm.tm_year % 100;
+ p[3] = tm.tm_mon + 1;
+ p[4] = tm.tm_mday;
+ p[5] = tm.tm_hour;
+ p[6] = tm.tm_min;
+}
+
+
+/* IE_DISPLAY */
+static void enc_ie_display(unsigned char **ntmode, msg_t *msg, char *display, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (!display[0])
+ {
+ printf("%s: ERROR: display text not given.\n", __FUNCTION__);
+ return;
+ }
+
+ if (strlen((char *)display) > 80)
+ {
+ printf("%s: WARNING: display text too long (max 80 chars), cutting.\n", __FUNCTION__);
+ display[80] = '\0';
+ }
+
+ /* if (MISDN_IE_DEBG) printf(" display='%s' (len=%d)\n", display, strlen((char *)display)); */
+
+ l = strlen((char *)display);
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(display) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_DISPLAY;
+ p[1] = l;
+ strncpy((char *)p+2, (char *)display, strlen((char *)display));
+}
+
+#if 0
+static void dec_ie_display(unsigned char *p, Q931_info_t *qi, char *display, int display_len, int nt, struct misdn_bchannel *bc)
+{
+ *display = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(display))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(display) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ strnncpy(display, (char *)p+1, p[0], display_len);
+
+ if (MISDN_IE_DEBG) printf(" display='%s'\n", display);
+}
+#endif
+
+/* IE_KEYPAD */
+#if 1
+static void enc_ie_keypad(unsigned char **ntmode, msg_t *msg, char *keypad, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (!keypad[0])
+ {
+ printf("%s: ERROR: keypad info not given.\n", __FUNCTION__);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" keypad='%s'\n", keypad);
+
+ l = strlen(keypad);
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(keypad) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_KEYPAD;
+ p[1] = l;
+ strncpy((char *)p+2, keypad, strlen(keypad));
+}
+#endif
+
+static void dec_ie_keypad(unsigned char *p, Q931_info_t *qi, char *keypad, int keypad_len, int nt, struct misdn_bchannel *bc)
+{
+ *keypad = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(keypad))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(keypad) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ strnncpy(keypad, (char *)p+1, p[0], keypad_len);
+
+ if (MISDN_IE_DEBG) printf(" keypad='%s'\n", keypad);
+}
+
+
+/* IE_NOTIFY */
+#if 0
+static void enc_ie_notify(unsigned char **ntmode, msg_t *msg, int notify, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (notify<0 || notify>0x7f)
+ {
+ printf("%s: ERROR: notify(%d) is out of range.\n", __FUNCTION__, notify);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" notify=%d\n", notify);
+
+ l = 1;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(notify) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_NOTIFY;
+ p[1] = l;
+ p[2] = 0x80 + notify;
+}
+#endif
+
+#if 0
+static void dec_ie_notify(unsigned char *p, Q931_info_t *qi, int *notify, int nt, struct misdn_bchannel *bc)
+{
+ *notify = -1;
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(notify))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(notify) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *notify = p[1] & 0x7f;
+
+ if (MISDN_IE_DEBG) printf(" notify=%d\n", *notify);
+}
+#endif
+
+
+/* IE_PROGRESS */
+static void enc_ie_progress(unsigned char **ntmode, msg_t *msg, int coding, int location, int progress, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (coding<0 || coding>0x03)
+ {
+ printf("%s: ERROR: coding(%d) is out of range.\n", __FUNCTION__, coding);
+ return;
+ }
+ if (location<0 || location>0x0f)
+ {
+ printf("%s: ERROR: location(%d) is out of range.\n", __FUNCTION__, location);
+ return;
+ }
+ if (progress<0 || progress>0x7f)
+ {
+ printf("%s: ERROR: progress(%d) is out of range.\n", __FUNCTION__, progress);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" coding=%d location=%d progress=%d\n", coding, location, progress);
+
+ l = 2;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(progress) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_PROGRESS;
+ p[1] = l;
+ p[2] = 0x80 + (coding<<5) + location;
+ p[3] = 0x80 + progress;
+}
+
+static void dec_ie_progress(unsigned char *p, Q931_info_t *qi, int *coding, int *location, int *progress, int nt, struct misdn_bchannel *bc)
+{
+ *coding = -1;
+ *location = -1;
+ //*progress = -1;
+ *progress = 0;
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(progress))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(progress) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *coding = (p[1]&0x60) >> 5;
+ *location = p[1] & 0x0f;
+ *progress = p[2] & 0x7f;
+
+ if (MISDN_IE_DEBG) printf(" coding=%d location=%d progress=%d\n", *coding, *location, *progress);
+}
+
+
+/* IE_REDIR_NR (redirecting = during MT_SETUP) */
+static void enc_ie_redir_nr(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, int screen, int reason, char *number, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ if (type<0 || type>7)
+ {
+ printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
+ return;
+ }
+ if (plan<0 || plan>15)
+ {
+ printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
+ return;
+ }
+ if (present > 3)
+ {
+ printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
+ return;
+ }
+ if (present >= 0) if (screen<0 || screen>3)
+ {
+ printf("%s: ERROR: screen(%d) is out of range.\n", __FUNCTION__, screen);
+ return;
+ }
+ if (reason > 0x0f)
+ {
+ printf("%s: ERROR: reason(%d) is out of range.\n", __FUNCTION__, reason);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d readon=%d number='%s'\n", type, plan, present, screen, reason, number);
+
+ l = 1;
+ if (number)
+ l += strlen((char *)number);
+ if (present >= 0)
+ {
+ l += 1;
+ if (reason >= 0)
+ l += 1;
+ }
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(redirect_nr) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_REDIR_NR;
+ p[1] = l;
+ if (present >= 0)
+ {
+ if (reason >= 0)
+ {
+ p[2] = 0x00 + (type<<4) + plan;
+ p[3] = 0x00 + (present<<5) + screen;
+ p[4] = 0x80 + reason;
+ if (number)
+ strncpy((char *)p+5, (char *)number, strlen((char *)number));
+ } else
+ {
+ p[2] = 0x00 + (type<<4) + plan;
+ p[3] = 0x80 + (present<<5) + screen;
+ if (number)
+ strncpy((char *)p+4, (char *)number, strlen((char *)number));
+ }
+ } else
+ {
+ p[2] = 0x80 + (type<<4) + plan;
+ if (number) if (number[0])
+ strncpy((char *)p+3, (char *)number, strlen((char *)number));
+ }
+}
+
+static void dec_ie_redir_nr(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, int *screen, int *reason, char *number, int number_len, int nt, struct misdn_bchannel *bc)
+{
+ *type = -1;
+ *plan = -1;
+ *present = -1;
+ *screen = -1;
+ *reason = -1;
+ *number = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(redirect_nr))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(redirect_nr) + 1;
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *type = (p[1]&0x70) >> 4;
+ *plan = p[1] & 0xf;
+ if (!(p[1] & 0x80))
+ {
+ *present = (p[2]&0x60) >> 5;
+ *screen = p[2] & 0x3;
+ if (!(p[2] & 0x80))
+ {
+ *reason = p[3] & 0x0f;
+ strnncpy(number, (char *)p+4, p[0]-3, number_len);
+ } else
+ {
+ strnncpy(number, (char *)p+3, p[0]-2, number_len);
+ }
+ } else
+ {
+ strnncpy(number, (char *)p+2, p[0]-1, number_len);
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d screen=%d reason=%d number='%s'\n", *type, *plan, *present, *screen, *reason, number);
+}
+
+
+/* IE_REDIR_DN (redirection = during MT_NOTIFY) */
+#if 0
+static void enc_ie_redir_dn(unsigned char **ntmode, msg_t *msg, int type, int plan, int present, char *number, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+/* Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN); */
+ int l;
+
+ if (type<0 || type>7)
+ {
+ printf("%s: ERROR: type(%d) is out of range.\n", __FUNCTION__, type);
+ return;
+ }
+ if (plan<0 || plan>15)
+ {
+ printf("%s: ERROR: plan(%d) is out of range.\n", __FUNCTION__, plan);
+ return;
+ }
+ if (present > 3)
+ {
+ printf("%s: ERROR: present(%d) is out of range.\n", __FUNCTION__, present);
+ return;
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d number='%s'\n", type, plan, present, number);
+
+ l = 1;
+ if (number)
+ l += strlen((char *)number);
+ if (present >= 0)
+ l += 1;
+ p = msg_put(msg, l+2);
+ if (nt)
+ *ntmode = p+1;
+ else
+/* #warning REINSERT redir_dn, when included in te-mode */
+ /*qi->QI_ELEMENT(redir_dn) = p - (unsigned char *)qi - sizeof(Q931_info_t)*/;
+ p[0] = IE_REDIR_DN;
+ p[1] = l;
+ if (present >= 0)
+ {
+ p[2] = 0x00 + (type<<4) + plan;
+ p[3] = 0x80 + (present<<5);
+ if (number)
+ strncpy((char *)p+4, (char *)number, strlen((char *)number));
+ } else
+ {
+ p[2] = 0x80 + (type<<4) + plan;
+ if (number)
+ strncpy((char *)p+3, (char *)number, strlen((char *)number));
+ }
+}
+#endif
+
+#if 0
+static void dec_ie_redir_dn(unsigned char *p, Q931_info_t *qi, int *type, int *plan, int *present, char *number, int number_len, int nt, struct misdn_bchannel *bc)
+{
+ *type = -1;
+ *plan = -1;
+ *present = -1;
+ *number = '\0';
+
+ if (!nt)
+ {
+ p = NULL;
+/* #warning REINSERT redir_dn, when included in te-mode */
+/* if (qi->QI_ELEMENT(redir_dn)) */
+/* p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(redir_dn) + 1; */
+ }
+ if (!p)
+ return;
+ if (p[0] < 1)
+ {
+ printf("%s: ERROR: IE too short (%d).\n", __FUNCTION__, p[0]);
+ return;
+ }
+
+ *type = (p[1]&0x70) >> 4;
+ *plan = p[1] & 0xf;
+ if (!(p[1] & 0x80))
+ {
+ *present = (p[2]&0x60) >> 5;
+ strnncpy(number, (char *)p+3, p[0]-2, number_len);
+ } else
+ {
+ strnncpy(number, (char *)p+2, p[0]-1, number_len);
+ }
+
+ if (MISDN_IE_DEBG) printf(" type=%d plan=%d present=%d number='%s'\n", *type, *plan, *present, number);
+}
+#endif
+
+
+/* IE_USERUSER */
+#if 1
+static void enc_ie_useruser(unsigned char **ntmode, msg_t *msg, int protocol, char *user, int user_len, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ int l;
+
+ char debug[768];
+ int i;
+
+ if (protocol<0 || protocol>127)
+ {
+ printf("%s: ERROR: protocol(%d) is out of range.\n", __FUNCTION__, protocol);
+ return;
+ }
+ if (!user || user_len<=0)
+ {
+ return;
+ }
+
+ i = 0;
+ while(i < user_len)
+ {
+ if (MISDN_IE_DEBG) printf(debug+(i*3), " %02x", user[i]);
+ i++;
+ }
+
+ if (MISDN_IE_DEBG) printf(" protocol=%d user-user%s\n", protocol, debug);
+
+ l = user_len+1;
+ p = msg_put(msg, l+3);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(useruser) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_USER_USER;
+ p[1] = l;
+ p[2] = protocol;
+ memcpy(p+3, user, user_len);
+}
+#endif
+
+#if 1
+static void dec_ie_useruser(unsigned char *p, Q931_info_t *qi, int *protocol, char *user, int *user_len, int nt, struct misdn_bchannel *bc)
+{
+ char debug[768];
+ int i;
+
+ *user_len = 0;
+ *protocol = -1;
+
+ if (!nt)
+ {
+ p = NULL;
+ if (qi->QI_ELEMENT(useruser))
+ p = (unsigned char *)qi + sizeof(Q931_info_t) + qi->QI_ELEMENT(useruser) + 1;
+ }
+ if (!p)
+ return;
+
+ *user_len = p[0]-1;
+ if (p[0] < 1)
+ return;
+ *protocol = p[1];
+ memcpy(user, p+2, (*user_len<=128)?*(user_len):128); /* clip to 128 maximum */
+
+ i = 0;
+ while(i < *user_len)
+ {
+ if (MISDN_IE_DEBG) printf(debug+(i*3), " %02x", user[i]);
+ i++;
+ }
+ debug[i*3] = '\0';
+
+ if (MISDN_IE_DEBG) printf(" protocol=%d user-user%s\n", *protocol, debug);
+}
+#endif
+
+/* IE_DISPLAY */
+static void enc_ie_restart_ind(unsigned char **ntmode, msg_t *msg, unsigned char rind, int nt, struct misdn_bchannel *bc)
+{
+ unsigned char *p;
+ Q931_info_t *qi = (Q931_info_t *)(msg->data + mISDN_HEADER_LEN);
+ /* if (MISDN_IE_DEBG) printf(" display='%s' (len=%d)\n", display, strlen((char *)display)); */
+
+ p = msg_put(msg, 3);
+ if (nt)
+ *ntmode = p+1;
+ else
+ qi->QI_ELEMENT(restart_ind) = p - (unsigned char *)qi - sizeof(Q931_info_t);
+ p[0] = IE_RESTART_IND;
+ p[1] = 1;
+ p[2] = rind;
+
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 18:05:05 +0000