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Improved some things. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11818 110e8d01-0319-4d1e-a829-52ad28d1bb01
This commit is contained in:
isiora 2018-03-18 23:03:03 +00:00
parent 9092d4fd03
commit e28fce8eb3
2 changed files with 28 additions and 15 deletions
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1
demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/proxies/tscommon.h
View File

@ -67,6 +67,7 @@ typedef struct skel_req {
uint32_t stub_op;
uint32_t stub_op_code;
uint32_t stub_op_result;
uint32_t stub_op_p_sz[METHOD_MAX_PARAMS];
uint32_t stub_op_p[METHOD_MAX_PARAMS];
} skel_req_t;

42
demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-SEC/proxies/tssockstub.c
View File

@ -21,7 +21,7 @@
*/
#include "ch.h"
#include "chfifo.h"
#include "chobjfifos.h"
#include "chtssi.h"
#include "tssockstub.h"
#include <string.h>
@ -55,7 +55,7 @@ typedef struct stub_param {
} stub_parm_t;
typedef struct stub_op {
uint32_t op_code; /* connect, recv, sendv, close, etc.*/
uint32_t op_code; /* e.g. connect, recv, sendv, close, etc.*/
op_state_t op_state; /* calling, pending, free.*/
stub_parm_t op_p[METHOD_MAX_PARAMS];
thread_reference_t op_wthdp; /* TS internal client thread (the caller).*/
@ -84,14 +84,14 @@ static bool isOpValid(stub_op_t *op)
}
/**
* @brief Simulate an a call to a NSEC function.
* @brief Implement an a call to a NSEC function.
* @details It activates the channel between the stubs service and
* the skels daemon running in the nsec world.
* To do it, it uses an event to signal the skels
* daemons that a new op request is ready to be executed.
* The skels daemon will then, behind the scenes, gets the op calling,
* via smc, the stubs service. The skel executes it and then calls the
* stubs service again to post the result and to wake up the
* daemon that a new op request is ready to be executed.
* Behind the scenes, the skels daemon will then gets the op, calling
* the stubs service via smc. The daemon executes it and then calls
* the stubs service again to post the result and to wake up the
* calling thread of this function.
*
* @param[in] op the 'remote' method description.
@ -153,18 +153,21 @@ THD_FUNCTION(TsStubsService, tsstate) {
case SKEL_REQ_READY:
tsSkelIsReady = true;
break;
case SKEL_REQ_GETOP:
/* The nsec skeleton calls us to get a new op ready to be executed.*/
if (chFifoReceiveObjectTimeout(&ops_fifo, (void **)&op, TIME_IMMEDIATE) ==
MSG_TIMEOUT) {
/* no op ready to be executed.*/
r = SMC_SVC_NHND;
break;
}
skrp->stub_op = (uint32_t)op;
skrp->stub_op_code = op->op_code;
/* Pass all the 'by value' arguments.*/
/* Pass all the 'by value' arguments from stub to skel.*/
for (i = 0; i < METHOD_MAX_PARAMS; ++i) {
if (op->op_p[i].dir == OP_PRMDIR_NONE)
skrp->stub_op_p[i] = op->op_p[i].val;
@ -219,22 +222,24 @@ THD_FUNCTION(TsStubsService, tsstate) {
/* Copy all 'out' parameters.
For each parameter check that the source memory area
is in the non secure memory arena.*/
is in the non secure memory arena, and that the size returned
fits in the caller buffer size.*/
for (i = 0; i < METHOD_MAX_PARAMS; ++i) {
if ((op->op_p[i].dir & OP_PRMDIR_OUT) == 0)
continue;
if (!tsIsAddrSpaceValid((void *)skrp->stub_op_p[i], op->op_p[i].size)) {
if (!tsIsAddrSpaceValid((void *)skrp->stub_op_p[i], skrp->stub_op_p_sz[i])
|| (skrp->stub_op_p_sz[i] > op->op_p[i].size)) {
r = SMC_SVC_INVALID;
break;
}
memcpy((void *)op->op_p[i].val, (void *)skrp->stub_op_p[i],
op->op_p[i].size);
skrp->stub_op_p_sz[i]);
}
if (r != SMC_SVC_OK)
break;
/* Set the return value of the 'remote' callee method,
and wake up the secure caller.*/
and wake up the caller.*/
op->op_code = skrp->stub_op_result;
chThdResume(&op->op_wthdp, MSG_OK);
break;
@ -248,13 +253,20 @@ THD_FUNCTION(TsStubsService, tsstate) {
TS_SET_STATUS(svcp, r);
}
}
/**
* @brief Is the skeletons daemon ready to operate?
* @details It is used at the startup to synchronize the
* stub service with the skeleton daemon.
*/
void tsWaitStubSkelReady(void) {
while (!tsSkelIsReady) {
chThdSleepMilliseconds(100);
}
}
/**
* @brief The sockets API.
*/
int socket(int domain, int type, int protocol) {
stub_op_t *op = getNewOp();
op->op_code = STUB_OP_SOCKET;
@ -399,7 +411,7 @@ int inet_aton(const char *cp, struct in_addr *addr) {
for (;;) {
/*
* Collect number up to ``.''.
* Collect number up to '.'.
* Values are specified as for C:
* 0x=hex, 0=octal, other=decimal.
*/
@ -443,7 +455,7 @@ int inet_aton(const char *cp, struct in_addr *addr) {
if (*cp && (!isascii(*cp) || !isspace(*cp)))
return 0;
/*
* Concoct the address according to
* Make the address according to
* the number of parts specified.
*/
n = pp - parts + 1;