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wsc: Add Beacon frame parser

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This commit is contained in:
Denis Kenzior 2015-07-23 19:42:29 -05:00
parent 10db370b72
commit 3eee3d47ee
2 changed files with 68 additions and 0 deletions
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53
src/wsc.c
View File

@ -591,6 +591,59 @@ static bool wfa_extract_registrar_configuration_methods(
return true;
}
int wsc_parse_beacon(const unsigned char *pdu, unsigned int len,
struct wsc_beacon *out)
{
int r;
struct wsc_wfa_ext_iter iter;
uint8_t version;
memset(out, 0, sizeof(struct wsc_beacon));
r = wsc_parse_attrs(pdu, len, &out->version2, &iter,
WSC_ATTR_VERSION, ATTR_FLAG_REQUIRED, &version,
WSC_ATTR_WSC_STATE, ATTR_FLAG_REQUIRED, &out->config_state,
WSC_ATTR_AP_SETUP_LOCKED, 0, &out->ap_setup_locked,
WSC_ATTR_SELECTED_REGISTRAR, 0, &out->selected_registrar,
WSC_ATTR_DEVICE_PASSWORD_ID,
ATTR_FLAG_REGISTRAR, &out->device_password_id,
WSC_ATTR_SELECTED_REGISTRAR_CONFIGURATION_METHODS,
ATTR_FLAG_REGISTRAR, &out->selected_reg_config_methods,
WSC_ATTR_UUID_E, ATTR_FLAG_REQUIRED, &out->uuid_e,
WSC_ATTR_RF_BANDS, 0, &out->rf_bands,
WSC_ATTR_INVALID);
if (r < 0)
return r;
if (!wsc_wfa_ext_iter_next(&iter))
goto done;
if (wsc_wfa_ext_iter_get_type(&iter) ==
WSC_WFA_EXTENSION_AUTHORIZED_MACS) {
if (!wfa_extract_authorized_macs(&iter, &out->authorized_macs))
return -EBADMSG;
if (!wsc_wfa_ext_iter_next(&iter))
goto done;
}
if (wsc_wfa_ext_iter_get_type(&iter) ==
WSC_WFA_EXTENSION_REGISTRAR_CONFIGRATION_METHODS) {
if (!wfa_extract_registrar_configuration_methods(&iter,
&out->reg_config_methods))
return -EBADMSG;
if (!wsc_wfa_ext_iter_next(&iter))
goto done;
}
return -EINVAL;
done:
return 0;
}
int wsc_parse_probe_response(const unsigned char *pdu, unsigned int len,
struct wsc_probe_response *out)
{

15
src/wsc.h
View File

@ -327,6 +327,19 @@ struct wsc_primary_device_type {
uint16_t subcategory;
};
struct wsc_beacon {
bool version2;
enum wsc_config_state config_state;
bool ap_setup_locked;
bool selected_registrar;
enum wsc_device_password_id device_password_id;
uint16_t selected_reg_config_methods;
uint8_t uuid_e[16];
uint8_t rf_bands;
uint8_t authorized_macs[30];
uint16_t reg_config_methods;
};
struct wsc_probe_response {
bool version2;
enum wsc_config_state config_state;
@ -348,5 +361,7 @@ struct wsc_probe_response {
uint16_t reg_config_methods;
};
int wsc_parse_beacon(const unsigned char *pdu, unsigned int len,
struct wsc_beacon *out);
int wsc_parse_probe_response(const unsigned char *pdu, unsigned int len,
struct wsc_probe_response *out);