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Dump opcode string in iscsi_dump_pdu_header()

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Now we have more friendly opcode message once error occurs:
libiscsi:1 command timed out from waitqueue [...]
libiscsi:2 PDU header: 01 c1 ... e9 88[READ16] 00 00 00 ...
                                       ^(human readable opcode string)

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
This commit is contained in:
zhenwei pi
2023-11-03 12:18:30 +08:00
parent 283e99b322
commit 4c3ac5464a
1 changed files with 10 additions and 4 deletions
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lib/pdu.c
+10 -4
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@@ -79,12 +79,18 @@ iscsi_itt_post_increment(struct iscsi_context *iscsi) {
} }
void iscsi_dump_pdu_header(struct iscsi_context *iscsi, unsigned char *data) { void iscsi_dump_pdu_header(struct iscsi_context *iscsi, unsigned char *data) {
char dump[ISCSI_RAW_HEADER_SIZE*3+1]={0}; char dump1[33*3+1]={0};
char dump2[(ISCSI_RAW_HEADER_SIZE-33)*3+1]={0};
const char *opcode;
int i; int i;
for (i=0;i<ISCSI_RAW_HEADER_SIZE;i++) { for (i=0;i<33;i++) {
snprintf(&dump[i * 3], 4, " %02x", data[i]); snprintf(&dump1[i * 3], 4, " %02x", data[i]);
} }
ISCSI_LOG(iscsi, 2, "PDU header:%s", dump); opcode = scsi_opcode_str(data[32]);
for (;i<ISCSI_RAW_HEADER_SIZE;i++) {
snprintf(&dump2[(i-33) * 3], 4, " %02x", data[i]);
}
ISCSI_LOG(iscsi, 2, "PDU header:%s[%s]%s", dump1, opcode, dump2);
} }
struct iscsi_pdu* struct iscsi_pdu*