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hwstub: implement EXEC command over net

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Apparently I completely forgot to implement it so using hwstub over net would
just fail all EXEC commands :-s

Change-Id: I0d0506cbbce9b86c9a4f19036dacc922d1e51338
This commit is contained in:
Amaury Pouly 2016-08-02 15:37:30 +01:00
parent 56340f4cd0
commit a36694eb4a
3 changed files with 90 additions and 12 deletions
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7
utils/hwstub/include/hwstub_protocol.h
View file

@ -315,4 +315,11 @@ struct hwstub_exec_req_t
* Receive: no data
*/
/**
* HWSERVER_EXEC:
* Execute code.
* Send: args[0] = handle ID, args[1] = addr, args[2] = flags, no data
* Receive: no data
*/
#endif /* __HWSTUB_PROTOCOL__ */

49
utils/hwstub/lib/hwstub_net.cpp
View file

@ -714,9 +714,25 @@ error handle::get_dev_log(void *buf, size_t& buf_sz)
error handle::exec_dev(uint32_t addr, uint16_t flags)
{
(void) addr;
(void) flags;
return error::DUMMY;
std::shared_ptr<hwstub::context> hctx = get_device()->get_context();
if(!hctx)
return error::NO_CONTEXT;
context *ctx = dynamic_cast<context*>(hctx.get());
ctx->debug() << "[net::handle] --> EXEC(" << m_handle_id << ",0x" << std::hex
<< addr << ", 0x" << std::hex << flags << ")\n";
uint32_t args[HWSTUB_NET_ARGS] = {0};
args[0] = m_handle_id;
args[1] = addr;
args[2] = flags;
error err = ctx->send_cmd(HWSERVER_EXEC, args, nullptr, 0, nullptr, nullptr);
if(err != error::SUCCESS)
{
ctx->debug() << "[net::handle] <-- EXEC failed: " << error_string(err) << "\n";
return err;
}
ctx->debug() << "[net::handle] <-- EXEC\n";
return error::SUCCESS;
}
error handle::status() const
@ -1200,6 +1216,33 @@ error server::handle_cmd(client_state *state, uint32_t cmd, uint32_t args[HWSTUB
debug() << "[net::srv::cmd] <-- WRITE\n";
return error::SUCCESS;
}
/* HWSERVER_EXEC */
else if(cmd == HWSERVER_EXEC)
{
uint32_t hid = args[0];
uint32_t addr = args[1];
uint32_t flags = args[2];
debug() << "[net::srv::cmd] --> EXEC(" << hid << ",0x" << std::hex << addr << ","
<< "0x" << std::hex << flags << ")\n";
/* check ID is valid */
auto it = state->handle_map.find(hid);
if(it == state->handle_map.end())
{
debug() << "[net::srv::cmd] unknown handle ID\n";
debug() << "[net::srv::cmd] <-- EXEC (error)\n";
return error::ERROR;
}
/* exec */
error err = it->second->exec(addr, flags);
if(err != error::SUCCESS)
{
debug() << "[net::srv::cmd] cannot write: " << error_string(err) << "\n";
debug() << "[net::srv::cmd] <-- EXEC (error)\n";
return err;
}
debug() << "[net::srv::cmd] <-- EXEC\n";
return error::SUCCESS;
}
else
{
debug() << "[net::srv::cmd] <-> unknown cmd (0x" << std::hex << cmd << ")\n";

34
utils/hwstub/tools/hwstub_load.cpp
View file

@ -113,6 +113,8 @@ void usage(void)
printf(" --type/-t <t> Override file type\n");
printf(" --dev/-d <uri> Device URI (see below)\n");
printf(" --verbose/-v Display debug output\n");
printf(" --noload Skip loading stage and only execute the given address\n");
printf(" --noexec Skip execute stage and only load data the given address\n");
printf("file types:\n");
printf(" raw Load a raw binary blob\n");
printf(" rockbox Load a rockbox image produced by scramble\n");
@ -129,8 +131,9 @@ int main(int argc, char **argv)
{
bool quiet = false;
enum image_type_t type = IT_DETECT;
const char *uri = "usb:";
bool verbose = false;
const char *uri = hwstub::uri::default_uri().full_uri().c_str();
bool no_load = false, no_exec = false;
// parse command line
while(1)
@ -142,10 +145,12 @@ int main(int argc, char **argv)
{"type", required_argument, 0, 't'},
{"dev", required_argument, 0, 'd'},
{"verbose", no_argument, 0, 'v'},
{"noload", no_argument, 0, 'e'},
{"noexec", no_argument, 0, 'l'},
{0, 0, 0, 0}
};
int c = getopt_long(argc, argv, "?qt:d:v", long_options, NULL);
int c = getopt_long(argc, argv, "?qt:d:elv", long_options, NULL);
if(c == -1)
break;
switch(c)
@ -176,6 +181,11 @@ int main(int argc, char **argv)
break;
case 'v':
verbose = true;
case 'e':
no_load = true;
break;
case 'l':
no_exec = true;
break;
default:
abort();
@ -266,6 +276,9 @@ int main(int argc, char **argv)
return 1;
}
/* load */
if(!no_load)
{
size_t out_size = size;
ret = hwdev->write(addr, buffer, out_size, false);
if(ret != hwstub::error::SUCCESS || out_size != size)
@ -274,7 +287,22 @@ int main(int argc, char **argv)
out_size, size);
goto Lerr;
}
hwdev->exec(addr, HWSTUB_EXEC_JUMP);
}
else
printf("Skip load as requested\n");
/* exec */
if(!no_exec)
{
ret = hwdev->exec(addr, HWSTUB_EXEC_JUMP);
if(ret != hwstub::error::SUCCESS)
{
fprintf(stderr, "Exec failed: %s\n", error_string(ret).c_str());
goto Lerr;
}
}
else
printf("Skip exec as requested\n");
return 0;