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[c-host] linux: check the device name

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Geoffrey McRae 2019-03-01 21:11:44 +11:00
parent 1475845675
commit b275ac5765
1 changed files with 33 additions and 1 deletions
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34
c-host/linux/platform.c
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@ -79,6 +79,38 @@ int main(int argc, char * argv[])
} }
} }
// check the deice name
{
char file[100] = "/sys/class/uio/";
strncat(file, params.shmDevice, sizeof(file) - 1);
strncat(file, "/name" , sizeof(file) - 1);
int fd = open(file, O_RDONLY);
if (fd < 0)
{
DEBUG_ERROR("Failed to open: %s", file);
DEBUG_ERROR("Did you remmeber to modprobe the kvmfr module?");
return -1;
}
char name[32];
int len = read(fd, name, sizeof(name) - 1);
if (len <= 0)
{
DEBUG_ERROR("Failed to read: %s", file);
close(fd);
return -1;
}
name[len] = '\0';
close(fd);
if (strcmp(name, "KVMFR") != 0)
{
DEBUG_ERROR("Device is not a KVMFR device %s reports as %s", file, name);
return -1;
}
}
// get the device size // get the device size
{ {
char file[100] = "/sys/class/uio/"; char file[100] = "/sys/class/uio/";
@ -89,7 +121,6 @@ int main(int argc, char * argv[])
if (fd < 0) if (fd < 0)
{ {
DEBUG_ERROR("Failed to open: %s", file); DEBUG_ERROR("Failed to open: %s", file);
DEBUG_ERROR("Did you remmeber to modprobe the kvmfr module?");
return -1; return -1;
} }
@ -102,6 +133,7 @@ int main(int argc, char * argv[])
return -1; return -1;
} }
size[len] = '\0'; size[len] = '\0';
close(fd);
app.shmSize = strtoul(size, NULL, 16); app.shmSize = strtoul(size, NULL, 16);
} }