Differential D15691 Diff 43718 head/sys/i386/i386/bpf_jit_machdep.c

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Show First 20 Lines • Show All 626 Lines • ▼ Show 20 Lines	#endif
ins++;		ins++;
}		}

if (pass > 0)		if (pass > 0)
continue;		continue;

*size = stream.cur_ip;		*size = stream.cur_ip;
#ifdef _KERNEL		#ifdef _KERNEL
stream.ibuf = malloc(*size, M_BPFJIT, M_NOWAIT);		stream.ibuf = malloc(*size, M_BPFJIT, M_EXEC \| M_NOWAIT);
if (stream.ibuf == NULL)		if (stream.ibuf == NULL)
break;		break;
#else		#else
stream.ibuf = mmap(NULL, *size, PROT_READ \| PROT_WRITE,		stream.ibuf = mmap(NULL, *size, PROT_READ \| PROT_WRITE,
MAP_ANON, -1, 0);		MAP_ANON, -1, 0);
if (stream.ibuf == MAP_FAILED) {		if (stream.ibuf == MAP_FAILED) {
stream.ibuf = NULL;		stream.ibuf = NULL;
break;		break;
Show All 31 Lines	#ifndef _KERNEL
if (stream.ibuf != NULL &&		if (stream.ibuf != NULL &&
mprotect(stream.ibuf, *size, PROT_READ \| PROT_EXEC) != 0) {		mprotect(stream.ibuf, *size, PROT_READ \| PROT_EXEC) != 0) {
munmap(stream.ibuf, *size);		munmap(stream.ibuf, *size);
stream.ibuf = NULL;		stream.ibuf = NULL;
}		}
#endif		#endif

return ((bpf_filter_func)(void *)stream.ibuf);		return ((bpf_filter_func)(void *)stream.ibuf);
}

void
bpf_jit_free(void *func, size_t size)
{

#ifdef _KERNEL
free(func, M_BPFJIT);
#else
munmap(func, size);
#endif
}		}