Re: [Bluez-users] pairing on x86_64

[Volker Fritzsch <kokor.hekkus@gmx.de>]

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Hi Marcel,

> maybe this one helps.
neither did this :(

so I had a deeper look into it myself.
It seemed, as if the first four chars of buf get blanked after leaving 
g_io_channel_read.

have a look at my syslog below:

Feb 21 16:13:57 dionysos hcid[5088]: ** io_security_event
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[0]: 4
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[1]: 22
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[2]: 6
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[3]: 121
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[4]: -109
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[5]: 50
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[6]: -32
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[7]: 7
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf[8]: 0
Feb 21 16:13:57 dionysos hcid[5088]: glib-ectomy * buf points to: -1073745232
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[0] = 0
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[1] = 0
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[2] = 0
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[3] = 0
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[4] = -109
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[5] = 50
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[6] = -32
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[7] = 7
Feb 21 16:13:57 dionysos hcid[5088]: security * buf[8] = 0
Feb 21 16:13:57 dionysos hcid[5088]: security * buf points to -1073745232
Feb 21 16:13:57 dionysos hcid[5088]: ** type not HCI_EVENT_PKT

the appended patch does work for me - at least at this point,
because now I get the following from hcidump:

HCIDump - HCI packet analyzer ver 1.5
device: hci0 snap_len: 1028 filter: 0xffffffffffffffff
> HCI Event: Connect Request(0x04) plen 10
< HCI Command: Accept Connection Request(0x01|0x0009) plen 7
> HCI Event: Command Status(0x0f) plen 4
> HCI Event: Connect Complete(0x03) plen 11
< HCI Command: Write Link Policy Settings(0x02|0x000d) plen 4
> HCI Event: Page Scan Repetition Mode Change(0x20) plen 7
> HCI Event: Max Slots Change(0x1b) plen 3
> HCI Event: Command Complete(0x0e) plen 6
< HCI Command: Change Connection Packet Type(0x01|0x000f) plen 4
> HCI Event: Command Status(0x0f) plen 4
> HCI Event: Connection Packet Type Changed(0x1d) plen 5
> HCI Event: PIN Code Request(0x16) plen 6
< HCI Command: PIN Code Request Negative Reply(0x01|0x000e) plen 6
> HCI Event: Command Complete(0x0e) plen 10

I'll have a deeper look into that issue later today.

Yours, Volker

[-- Attachment #2: patch --]
[-- Type: text/x-diff, Size: 447 bytes --]

--- ../orig/bluez-utils-2.4/hcid/security.c	2003-07-24 19:34:34.000000000 +0200
+++ hcid/security.c	2004-02-21 16:22:01.278360248 +0100
@@ -354,7 +354,8 @@
 
 gboolean io_security_event(GIOChannel *chan, GIOCondition cond, gpointer data)
 {
-	char buf[HCI_MAX_EVENT_SIZE], *ptr = buf;
+	char *buf = malloc(sizeof(char) * HCI_MAX_EVENT_SIZE);
+	char *ptr = buf;
 	struct hci_dev_info *di = (void *) data;
 	int len, type, dev;
 	hci_event_hdr *eh;