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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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monitor: Print WFD IE contents
Only print the WFD version 2.1.0 spec subelements which removed all the low level video format details from the IEs so this code is much shorter.
This commit is contained in:
Andrew Zaborowski
Denis Kenzior
parent
97051da883
commit
e705c4382a
317
monitor/nlmon.c
317
monitor/nlmon.c
@ -325,6 +325,18 @@ static void print_hexdump(unsigned int level,
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}
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}
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static void print_address(unsigned int level, const char *label,
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const unsigned char address[6])
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{
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char addr[18];
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snprintf(addr, sizeof(addr), "%02X:%02X:%02X:%02X:%02X:%02X",
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address[0], address[1], address[2],
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address[3], address[4], address[5]);
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print_attr(level, "%s %s", label, addr);
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}
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static const struct {
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const uint8_t oui[3];
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const char *str;
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@ -3097,7 +3109,6 @@ static void print_p2p_capability(unsigned int level, const char *label,
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CHECK_CAPS_BIT(P2P_GROUP_CAP_IP_ALLOCATION,
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"IP Address Allocation");
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}
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#undef CHECK_CAPS_BIT
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static void print_p2p_go_intent(unsigned int level, const char *label,
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const void *data, uint16_t size)
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@ -3658,11 +3669,294 @@ static void print_p2p_attributes(unsigned int level, const char *label,
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}
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}
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static void print_wfd_device_info_flags(unsigned int level, const char *label,
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uint16_t caps)
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{
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static const char *dev_type[] = {
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[WFD_DEV_INFO_TYPE_SOURCE] = "Source",
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[WFD_DEV_INFO_TYPE_PRIMARY_SINK] = "Primary sink",
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[WFD_DEV_INFO_TYPE_SECONDARY_SINK] = "Secondary sink",
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[WFD_DEV_INFO_TYPE_DUAL_ROLE] = "Dual-role possible",
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};
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static const char *session_avail[] = {
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[0] = "Not available for WFD Session",
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[1] = "Available for WFD Session",
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[2] = "Reserved (0b10)",
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[3] = "Reserved (0b11)",
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};
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print_attr(level, "%s:", label);
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print_attr(level + 1, "Device Type: %s",
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dev_type[caps & WFD_DEV_INFO_DEVICE_TYPE]);
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CHECK_CAPS_BIT(WFD_DEV_INFO_COUPLED_SINK_AT_SOURCE_OK,
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"Coupled Sink Operation supported by WFD Source");
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CHECK_CAPS_BIT(WFD_DEV_INFO_COUPLED_SINK_AT_SINK_OK,
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"Coupled Sink Operation supported by WFD Sink");
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print_attr(level + 1, "Session Availability: %s",
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session_avail[(caps &
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WFD_DEV_INFO_SESSION_AVAILABILITY) >> 4]);
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CHECK_CAPS_BIT(WFD_DEV_INFO_SERVICE_DISCOVERY_SUPPORT,
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"WFD Service Discovery (WSD) supported");
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print_attr(level + 1, "Preferred Connectivity (PC): %s",
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(caps & WFD_DEV_INFO_PREFER_TDLS_CONNECTIVITY) ?
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"TLDS" : "P2P");
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CHECK_CAPS_BIT(WFD_DEV_INFO_CONTENT_PROTECTION_SUPPORT,
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"Content Protection using HDCP system 2.x supported");
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CHECK_CAPS_BIT(WFD_DEV_INFO_8021AS_TIME_SYNC_SUPPORT,
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"Time Synchronization using 802.1AS supported");
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CHECK_CAPS_BIT(WFD_DEV_INFO_NO_AUDIO_AT_PRIMARY_SINK,
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"WFD Primary Sink does not support audio rendering");
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CHECK_CAPS_BIT(WFD_DEV_INFO_AUDIO_ONLY_AT_SOURCE,
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"WFD Source supports audio-only element stream");
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CHECK_CAPS_BIT(WFD_DEV_INFO_TDLS_PERSISTENT_GROUP,
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"TDLS persistent group intended");
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CHECK_CAPS_BIT(WFD_DEV_INFO_REINVOKE_TDLS_GROUP,
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"Request for re-invocation of TDLS persistent group");
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caps &= ~0x00ff;
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if (caps)
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print_attr(level + 1, "Reserved: 0x%04x", caps);
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}
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static void print_wfd_device_info(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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const uint8_t *bytes = data;
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if (size != 6) {
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printf("malformed WFD %s\n", label);
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return;
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}
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print_wfd_device_info_flags(level, label, l_get_be16(bytes + 0));
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print_attr(level, "%s: Session Management Control port %i",
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label, l_get_be16(bytes + 2));
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print_attr(level, "%s: Maximum Throughput %i Mbps",
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label, l_get_be16(bytes + 4));
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}
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static void print_wfd_coupled_sink_info(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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const uint8_t *bytes = data;
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static const char *status[4] = {
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[0] = "Not couple/Available for Coupling",
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[1] = "Coupled",
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[2] = "Teardown Coupling",
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[3] = "Reserved (0b11)",
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};
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if (size != 7) {
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printf("malformed WFD %s\n", label);
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return;
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}
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print_attr(level, "%s:", label);
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print_attr(level + 1, "Status: %s", status[bytes[0] & 3]);
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if (bytes[0] & ~3)
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print_attr(level + 1, "Reserved: 0x%02x", bytes[0] & ~3);
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print_address(level + 1, "Coupled Sink MAC Address", bytes + 1);
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}
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static void print_wfd_extended_caps(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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const uint8_t *bytes = data;
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uint16_t caps;
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if (size != 2) {
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printf("malformed WFD %s\n", label);
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return;
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}
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print_attr(level, "%s:", label);
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caps = l_get_be16(bytes + 0);
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CHECK_CAPS_BIT(0x0001, "UIBC support");
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CHECK_CAPS_BIT(0x0002, "I2C Read/Write support");
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CHECK_CAPS_BIT(0x0004, "Preferred Display mode support");
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CHECK_CAPS_BIT(0x0008, "Standby and Resume Control support");
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CHECK_CAPS_BIT(0x0010, "TDLS Persistent support");
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CHECK_CAPS_BIT(0x0020, "TDLS Persistent BSSID support");
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if (caps)
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print_attr(level + 1, "Reserved: 0x%04x", caps);
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}
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static void print_wfd_local_ip(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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const uint8_t *bytes = data;
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if (size != 5) {
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printf("malformed WFD %s\n", label);
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return;
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}
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if (bytes[0] != 1) {
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print_attr(level, "%s: Unknown version", label);
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return;
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}
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print_attr(level, "%s: %i.%i.%i.%i", label,
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bytes[1], bytes[2], bytes[3], bytes[4]);
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}
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static void print_wfd_session_info(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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int i = 1;
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if (size % 24 != 0) {
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printf("malformed WFD %s\n", label);
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return;
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}
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print_attr(level, "%s:", label);
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while (size) {
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const uint8_t *bytes = data;
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if (bytes[0] != 23) {
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print_attr(level + 1,
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"malformed WFD Device Info Descriptor");
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continue;
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}
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print_attr(level + 1, "Device Info for client %i:", i++);
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if (bytes[0] != 1) {
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print_attr(level, "%s: Unknown version", label);
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return;
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}
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print_address(level + 2, "Device address", bytes + 1);
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if (util_mem_is_zero(bytes + 7, 6))
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print_attr(level+ + 2, "Not associated to an "
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"infrastructure AP");
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else
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print_address(level + 2, "Associated BSSID", bytes + 7);
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print_wfd_device_info_flags(level + 2, "WFD Device Information",
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l_get_be16(bytes + 13));
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print_attr(level + 2, "WFD Device Maximum Throughput %i Mbps",
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l_get_be16(bytes + 15));
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print_wfd_coupled_sink_info(level + 2,
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"Coupled Sink Information",
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bytes + 17, 7);
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data += 24;
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size -= 24;
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}
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}
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static void print_wfd_r2_device_info(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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static const char *dev_type[4] = {
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[0] = "WFD R2 Source",
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[1] = "WFD R2 Primary sink",
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[2] = "Reserved (0b10)",
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[3] = "Dual-role possible",
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};
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const uint8_t *bytes = data;
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uint16_t caps;
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if (size < 2) {
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printf("malformed WFD %s\n", label);
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return;
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}
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print_attr(level, "%s:", label);
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caps = l_get_be16(bytes + 0);
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print_attr(level + 1, "WFD R2 Device Type: %s", dev_type[caps & 3]);
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if (caps & ~3)
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print_attr(level + 1, "Reserved: 0x%04x", caps & ~3);
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}
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static struct attr_entry wfd_subelem_entry[] = {
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{ WFD_SUBELEM_WFD_DEVICE_INFORMATION, "WFD Device Information",
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ATTR_CUSTOM, { .function = print_wfd_device_info } },
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{ WFD_SUBELEM_ASSOCIATED_BSSID, "Associated BSSID",
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ATTR_ADDRESS },
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{ WFD_SUBELEM_COUPLED_SINK_INFORMATION, "Coupled Sink Information",
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ATTR_CUSTOM, { .function = print_wfd_coupled_sink_info } },
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{ WFD_SUBELEM_EXTENDED_CAPABILITY, "WFD Extended Capability",
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ATTR_CUSTOM, { .function = print_wfd_extended_caps } },
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{ WFD_SUBELEM_LOCAL_IP_ADDRESS, "Local IP Address",
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ATTR_CUSTOM, { .function = print_wfd_local_ip } },
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{ WFD_SUBELEM_SESION_INFORMATION, "WFD Session Information",
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ATTR_CUSTOM, { .function = print_wfd_session_info } },
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{ WFD_SUBELEM_ALTERNATIVE_MAC_ADDRESS, "Alternative MAC Address",
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ATTR_ADDRESS },
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{ WFD_SUBELEM_R2_DEVICE_INFORMATION, "WFD R2 Device Information",
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ATTR_CUSTOM, { .function = print_wfd_r2_device_info } },
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{ },
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};
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static void print_wfd_subelements(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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struct wfd_subelem_iter iter;
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int i;
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print_attr(level, "%s: len %u", label, size);
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wfd_subelem_iter_init(&iter, data, size);
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while (wfd_subelem_iter_next(&iter)) {
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uint16_t type = wfd_subelem_iter_get_type(&iter);
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uint16_t len = wfd_subelem_iter_get_length(&iter);
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const void *attr = wfd_subelem_iter_get_data(&iter);
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struct attr_entry *entry = NULL;
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for (i = 0; wfd_subelem_entry[i].str; i++) {
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if (wfd_subelem_entry[i].attr == type) {
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entry = &wfd_subelem_entry[i];
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break;
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}
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}
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if (!entry)
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continue;
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switch (entry->type) {
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case ATTR_ADDRESS:
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if (len != 6) {
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print_attr(level + 1, "malformed %s",
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entry->str);
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break;
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}
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print_address(level + 1, entry->str, attr);
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break;
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default:
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if (entry->function)
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entry->function(level + 1, entry->str, attr,
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len);
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else {
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print_attr(level + 1, "Type: 0x%02x: len %u",
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type, len);
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print_hexdump(level + 2, attr, len);
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}
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break;
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}
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}
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}
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static void print_management_ies(unsigned int level, const char *label,
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const void *data, uint16_t size)
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{
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void *wsc_data, *p2p_data;
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ssize_t wsc_len, p2p_len;
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void *wsc_data, *p2p_data, *wfd_data;
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ssize_t wsc_len, p2p_len, wfd_len;
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print_ie(level, label, data, size);
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@ -3679,18 +3973,13 @@ static void print_management_ies(unsigned int level, const char *label,
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p2p_data, p2p_len);
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l_free(p2p_data);
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}
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}
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static void print_address(unsigned int level, const char *label,
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const unsigned char address[6])
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{
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char addr[18];
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snprintf(addr, sizeof(addr), "%02X:%02X:%02X:%02X:%02X:%02X",
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address[0], address[1], address[2],
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address[3], address[4], address[5]);
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print_attr(level, "%s %s", label, addr);
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wfd_data = ie_tlv_extract_wfd_payload(data, size, &wfd_len);
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if (wfd_data) {
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print_wfd_subelements(level + 1, "WFD Payload",
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wfd_data, wfd_len);
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l_free(wfd_data);
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}
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}
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static void print_reason_code(unsigned int level, const char *label,
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