|
|
@ -64,30 +64,96 @@ translator node_connection_t <node_dtrace_connection_t *nc> { |
|
|
|
&((node_dtrace_connection64_t *)nc)->buffered, sizeof (int32_t)); |
|
|
|
}; |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
uint32_t version; |
|
|
|
} node_dtrace_http_request_t; |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
uint32_t url; |
|
|
|
uint32_t method; |
|
|
|
} node_dtrace_http_request_t; |
|
|
|
} node_dtrace_http_request_v0_t; |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
uint32_t version; |
|
|
|
uint32_t url; |
|
|
|
uint32_t method; |
|
|
|
uint32_t forwardedFor; |
|
|
|
} node_dtrace_http_request_v1_t; |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
uint64_t url; |
|
|
|
uint64_t method; |
|
|
|
} node_dtrace_http_request64_t; |
|
|
|
} node_dtrace_http_request64_v0_t; |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
uint32_t version; |
|
|
|
uint32_t pad; |
|
|
|
uint64_t url; |
|
|
|
uint64_t method; |
|
|
|
uint64_t forwardedFor; |
|
|
|
} node_dtrace_http_request64_v1_t; |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
string url; |
|
|
|
string method; |
|
|
|
string forwardedFor; |
|
|
|
} node_http_request_t; |
|
|
|
|
|
|
|
/* |
|
|
|
* This translator is even filthier than usual owing to our attempts to |
|
|
|
* maintain backwards compatibility. Previous versions of node used an |
|
|
|
* http_request struct that had fields for "url" and "method". The current |
|
|
|
* version also provides a "forwardedFor" field. To distinguish the binary |
|
|
|
* representations of these structs, the new version also prepends a "version" |
|
|
|
* member (where the old one has a "url" pointer). So each field that we're |
|
|
|
* translating below first switches on the value of this "version" field: if |
|
|
|
* it's larger than 4096, we know we must be looking at the "url" pointer of |
|
|
|
* the older structure version. Otherwise, we must be looking at the new |
|
|
|
* version. Besides this, we have the usual switch based on the userland |
|
|
|
* process data model. This would all be simpler with macros, but those aren't |
|
|
|
* available in delivered D library files since that would make DTrace |
|
|
|
* dependent on cpp, which isn't always available. |
|
|
|
*/ |
|
|
|
translator node_http_request_t <node_dtrace_http_request_t *nd> { |
|
|
|
url = curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr((uintptr_t)*(uint32_t *)copyin((uintptr_t)&nd->url, |
|
|
|
sizeof (int32_t))) : |
|
|
|
copyinstr((uintptr_t)*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_t *)nd)->url, sizeof (int64_t))); |
|
|
|
method = curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr((uintptr_t)*(uint32_t *)copyin((uintptr_t)&nd->method, |
|
|
|
sizeof (int32_t))) : |
|
|
|
copyinstr((uintptr_t)*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_t *)nd)->method, sizeof (int64_t))); |
|
|
|
url = (*(uint32_t *)copyin((uintptr_t)&nd->version, sizeof (uint32_t))) >= 4096 ? |
|
|
|
(curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr(*(uint32_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request_v0_t *)nd)->url, |
|
|
|
sizeof (uint32_t))) : |
|
|
|
copyinstr(*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_v0_t *)nd)->url, |
|
|
|
sizeof (uint64_t)))) : |
|
|
|
(curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr(*(uint32_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request_v1_t *)nd)->url, |
|
|
|
sizeof (uint32_t))) : |
|
|
|
copyinstr(*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_v1_t *)nd)->url, |
|
|
|
sizeof (uint64_t)))); |
|
|
|
|
|
|
|
method = (*(uint32_t *)copyin((uintptr_t)&nd->version, sizeof (uint32_t))) >= 4096 ? |
|
|
|
(curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr(*(uint32_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request_v0_t *)nd)->method, |
|
|
|
sizeof (uint32_t))) : |
|
|
|
copyinstr(*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_v0_t *)nd)->method, |
|
|
|
sizeof (uint64_t)))) : |
|
|
|
(curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr(*(uint32_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request_v1_t *)nd)->method, |
|
|
|
sizeof (uint32_t))) : |
|
|
|
copyinstr(*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_v1_t *)nd)->method, |
|
|
|
sizeof (uint64_t)))); |
|
|
|
|
|
|
|
forwardedFor = (*(uint32_t *) |
|
|
|
copyin((uintptr_t)&nd->version, sizeof (uint32_t))) >= 4096 ? "" : |
|
|
|
(curpsinfo->pr_dmodel == PR_MODEL_ILP32 ? |
|
|
|
copyinstr(*(uint32_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request_v1_t *)nd)->forwardedFor, |
|
|
|
sizeof (uint32_t))) : |
|
|
|
copyinstr(*(uint64_t *)copyin((uintptr_t) |
|
|
|
&((node_dtrace_http_request64_v1_t *)nd)->forwardedFor, |
|
|
|
sizeof (uint64_t)))); |
|
|
|
}; |
|
|
|