Build provider 3rd arg from smb_request_t
hacking...
NEX-1643 dtrace provider for smbsrv
Also illumos 1841:
 DTrace smb provider was mis-implemented, doesn't exist.
Add back handlers for read/write raw, so that
 legacy dtrace consumers can find the probes.
Kill extra arg in smb_negotiate
Fix missing "done" probe with smb_notify
Add example consumer: smb-trace.d
fix soi_pid

@@ -59,21 +59,19 @@
 
         param->rw_count = (uint32_t)count;
         param->rw_offset = (uint64_t)off;
         param->rw_vdb.vdb_uio.uio_loffset = (offset_t)param->rw_offset;
 
-        DTRACE_SMB_2(op__Write__start, smb_request_t *, sr,
-            smb_rw_param_t *, param);
+        DTRACE_SMB_1(op__Write__start, smb_request_t *, sr); /* arg.rw */
 
         return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
 }
 
 void
 smb_post_write(smb_request_t *sr)
 {
-        DTRACE_SMB_2(op__Write__done, smb_request_t *, sr,
-            smb_rw_param_t *, sr->arg.rw);
+        DTRACE_SMB_1(op__Write__done, smb_request_t *, sr); /* arg.rw */
 
         kmem_free(sr->arg.rw, sizeof (smb_rw_param_t));
 }
 
 smb_sdrc_t

@@ -149,21 +147,19 @@
         }
 
         param->rw_count = (uint32_t)count;
         param->rw_offset = (uint64_t)off;
 
-        DTRACE_SMB_2(op__WriteAndClose__start, smb_request_t *, sr,
-            smb_rw_param_t *, param);
+        DTRACE_SMB_1(op__WriteAndClose__start, smb_request_t *, sr); /* arg.rw */
 
         return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
 }
 
 void
 smb_post_write_and_close(smb_request_t *sr)
 {
-        DTRACE_SMB_2(op__WriteAndClose__done, smb_request_t *, sr,
-            smb_rw_param_t *, sr->arg.rw);
+        DTRACE_SMB_1(op__WriteAndClose__done, smb_request_t *, sr); /* arg.rw */
 
         kmem_free(sr->arg.rw, sizeof (smb_rw_param_t));
 }
 
 smb_sdrc_t

@@ -247,21 +243,19 @@
         rc = smbsr_decode_vwv(sr, "wwlw", &sr->smb_fid, &count, &off, &remcnt);
 
         param->rw_count = (uint32_t)count;
         param->rw_offset = (uint64_t)off;
 
-        DTRACE_SMB_2(op__WriteAndUnlock__start, smb_request_t *, sr,
-            smb_rw_param_t *, param);
+        DTRACE_SMB_1(op__WriteAndUnlock__start, smb_request_t *, sr); /* arg.rw */
 
         return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
 }
 
 void
 smb_post_write_and_unlock(smb_request_t *sr)
 {
-        DTRACE_SMB_2(op__WriteAndUnlock__done, smb_request_t *, sr,
-            smb_rw_param_t *, sr->arg.rw);
+        DTRACE_SMB_1(op__WriteAndUnlock__done, smb_request_t *, sr); /* arg.rw */
 
         kmem_free(sr->arg.rw, sizeof (smb_rw_param_t));
 }
 
 smb_sdrc_t

@@ -323,10 +317,70 @@
             (uint16_t)param->rw_count, 0);
         return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
 }
 
 /*
+ * The SMB_COM_WRITE_RAW protocol was a negotiated option introduced in
+ * SMB Core Plus to maximize performance when writing a large block
+ * of data to a server.  It's obsolete and no longer supported.
+ *
+ * We keep a handler for it so the dtrace provider can see if
+ * the client tried to use this command.
+ */
+smb_sdrc_t
+smb_pre_write_raw(smb_request_t *sr)
+{
+        smb_rw_param_t *param;
+        uint32_t off_low;
+        uint32_t timeout;
+        uint32_t off_high;
+        uint16_t datalen;
+        uint16_t total;
+        int rc;
+
+        param = kmem_zalloc(sizeof (smb_rw_param_t), KM_SLEEP);
+        sr->arg.rw = param;
+
+        if (sr->smb_wct == 12) {
+                rc = smbsr_decode_vwv(sr, "ww2.llw4.ww", &sr->smb_fid, &total,
+                    &off_low, &timeout, &param->rw_mode, &datalen,
+                    &param->rw_dsoff);
+
+                param->rw_offset = (uint64_t)off_low;
+        } else {
+                rc = smbsr_decode_vwv(sr, "ww2.llw4.wwl", &sr->smb_fid, &total,
+                    &off_low, &timeout, &param->rw_mode, &datalen,
+                    &param->rw_dsoff, &off_high);
+
+                param->rw_offset = ((uint64_t)off_high << 32) | off_low;
+        }
+
+        param->rw_count = (uint32_t)datalen;
+        param->rw_total = (uint32_t)total;
+
+        DTRACE_SMB_1(op__WriteRaw__start, smb_request_t *, sr); /* arg.rw */
+
+        return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
+}
+
+void
+smb_post_write_raw(smb_request_t *sr)
+{
+        DTRACE_SMB_1(op__WriteRaw__done, smb_request_t *, sr); /* arg.rw */
+
+        kmem_free(sr->arg.rw, sizeof (smb_rw_param_t));
+}
+
+smb_sdrc_t
+smb_com_write_raw(struct smb_request *sr)
+{
+        smbsr_error(sr, NT_STATUS_NOT_SUPPORTED, ERRDOS,
+            ERROR_NOT_SUPPORTED);
+        return (SDRC_ERROR);
+}
+
+/*
  * Write bytes to a file (SMB Core).  This request was extended in
  * LM 0.12 to support 64-bit offsets, indicated by sending a wct of
  * 14, instead of 12, and including additional offset information.
  *
  * A ByteCount of 0 does not truncate the file - use SMB_COM_WRITE

@@ -385,21 +439,19 @@
          */
         if ((sr->session->capabilities & CAP_LARGE_WRITEX) != 0 ||
             (sr->smb_data.max_bytes > (sr->smb_data.chain_offset + 0xFFFF)))
                 param->rw_count |= ((uint32_t)datalen_high << 16);
 
-        DTRACE_SMB_2(op__WriteX__start, smb_request_t *, sr,
-            smb_rw_param_t *, param);
+        DTRACE_SMB_1(op__WriteX__start, smb_request_t *, sr); /* arg.rw */
 
         return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
 }
 
 void
 smb_post_write_andx(smb_request_t *sr)
 {
-        DTRACE_SMB_2(op__WriteX__done, smb_request_t *, sr,
-            smb_rw_param_t *, sr->arg.rw);
+        DTRACE_SMB_1(op__WriteX__done, smb_request_t *, sr); /* arg.rw */
 
         kmem_free(sr->arg.rw, sizeof (smb_rw_param_t));
 }
 
 smb_sdrc_t