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gopher
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setup logging, fatal/non-fatal errors

This commit is contained in:
Kelvin Sherlock 2014-08-22 22:03:08 -04:00
parent 812d6760ad
commit b1b50596c1
1 changed files with 67 additions and 3 deletions
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70
smb.c
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@ -22,7 +22,7 @@
#include "prototypes.h"
#include "smb.h"
#include "smb.errors.h"
static struct smb2_header_sync header;
static void *security_buffer = 0;
@ -42,6 +42,37 @@ typedef struct smb_response {
} smb_response;
// 3.3.4.4 Sending an Error Response
// http://msdn.microsoft.com/en-us/library/cc246722.aspx
static int is_error(const smb_response *msg)
{
uint32_t status = msg->header.status;
uint16_t command = msg->header.command;
if (status == 0) return false;
switch (command)
{
case SMB2_SESSION_SETUP:
if (status == STATUS_MORE_PROCESSING_REQUIRED)
return false;
break;
case SMB2_QUERY_INFO:
case SMB2_READ:
if (status == STATUS_BUFFER_OVERFLOW)
return false;
break;
case SMB2_CHANGE_NOTIFY:
if (status == STATUS_NOTIFY_ENUM_DIR)
return false;
break;
}
return true;
}
static void dump_header(const smb2_header_sync *header)
{
@ -104,23 +135,58 @@ static void dump_negotiate(const smb2_negotiate_response *msg)
msg->security_buffer_length);
}
static void dump_setup(const smb2_session_setup_response *msg)
{
fprintf(stdout, " structure_size: %04x\n", msg->structure_size);
fprintf(stdout, " session_flags: %04x\n", msg->session_flags);
fprintf(stdout, "security_buffer_offset: %04x\n", msg->security_buffer_offset);
fprintf(stdout, "security_buffer_length: %04x\n", msg->security_buffer_length);
fprintf(stdout, " buffer:\n");
hexdump((const char *)msg - sizeof(smb2_header_sync) + msg->security_buffer_offset,
msg->security_buffer_length);
}
static void dump_error(const smb2_error_response *msg)
{
fprintf(stdout, " structure_size: %04x\n", msg->structure_size);
fprintf(stdout, " reserved: %04x\n", msg->reserved);
fprintf(stdout, " bytecount: %08lx\n", msg->bytecount);
fprintf(stdout, " error_data:\n");
hexdump((const char *)msg + sizeof(smb2_error_response), msg->bytecount);
}
static void dump_response(const smb_response *msg)
{
if (!msg) return;
dump_header(&msg->header);
if (is_error(msg))
{
dump_error(&msg->body.error);
return;
}
switch (msg->header.command)
{
case SMB2_NEGOTIATE:
dump_negotiate(&msg->body.negotiate);
break;
case SMB2_SESSION_SETUP:
dump_setup(&msg->body.setup);
break;
default:
break;
}
}
static void write_message(Word ipid, const void *data1, unsigned size1, const void *data2, unsigned size2)
{
uint8_t nbthead[4];
@ -313,8 +379,6 @@ int negotiate(Word ipid)
if (!h) return -1;
HLock(h);
hexdump(*h, GetHandleSize(h));
responsePtr = *(smb_response **)h;
dump_response(responsePtr);