---
parser/l2cap.c | 354 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
parser/parser.h | 1 +
src/hcidump.c | 1 +
3 files changed, 356 insertions(+), 0 deletions(-)
diff --git a/parser/l2cap.c b/parser/l2cap.c
index 59b74bb..f794c6f 100644
--- a/parser/l2cap.c
+++ b/parser/l2cap.c
@@ -37,6 +37,7 @@
#include "parser/sdp.h"
#include "lib/hci.h"
#include "lib/l2cap.h"
+#include "lib/a2mp.h"
typedef struct {
uint16_t handle;
@@ -269,6 +270,16 @@ static char *reason2str(uint16_t reason)
}
}
+static char *a2mpreason2str(uint16_t reason)
+{
+ switch (reason) {
+ case A2MP_COMMAND_NOT_RECOGNIZED:
+ return "Command not recognized";
+ default:
+ return "Reserved";
+ }
+}
+
static char *connresult2str(uint16_t result)
{
switch (result) {
@@ -409,6 +420,89 @@ static char *supervisory2str(uint8_t supervisory)
}
}
+static char *ampctrltype2str(uint8_t type)
+{
+ switch (type) {
+ case HCI_BREDR:
+ return "BR-EDR";
+ case HCI_AMP:
+ return "802.11 AMP";
+ default:
+ return "Reserved";
+ }
+}
+
+static char *ampctrlstatus2str(uint8_t status)
+{
+ switch (status) {
+ case AMP_CTRL_POWERED_DOWN:
+ return "Powered down";
+ case AMP_CTRL_BLUETOOTH_ONLY:
+ return "Bluetooth only";
+ case AMP_CTRL_NO_CAPACITY:
+ return "No capacity";
+ case AMP_CTRL_LOW_CAPACITY:
+ return "Low capacity";
+ case AMP_CTRL_MEDIUM_CAPACITY:
+ return "Medium capacity";
+ case AMP_CTRL_HIGH_CAPACITY:
+ return "High capacity";
+ case AMP_CTRL_FULL_CAPACITY:
+ return "Full capacity";
+ default:
+ return "Reserved";
+
+ }
+}
+
+static char *a2mpstatus2str(uint8_t status)
+{
+ switch (status) {
+ case A2MP_STATUS_SUCCESS:
+ return "Success";
+ case A2MP_STATUS_INVALID_CTRL_ID:
+ return "Invalid Controller ID";
+ default:
+ return "Reserved";
+ }
+}
+
+static char *a2mpcplstatus2str(uint8_t status)
+{
+ switch (status) {
+ case A2MP_STATUS_SUCCESS:
+ return "Success";
+ case A2MP_STATUS_INVALID_CTRL_ID:
+ return "Invalid Controller ID";
+ case A2MP_STATUS_UNABLE_START_LINK_CREATION:
+ return "Failed - Unable to start link creation";
+ case A2MP_STATUS_COLLISION_OCCURED:
+ return "Failed - Collision occured";
+ case A2MP_STATUS_DISCONN_REQ_RECVD:
+ return "Failed - Disconnect physical link received";
+ case A2MP_STATUS_PHYS_LINK_EXISTS:
+ return "Failed - Physical link already exists";
+ case A2MP_STATUS_SECURITY_VIOLATION:
+ return "Failed - Security violation";
+ default:
+ return "Reserved";
+ }
+}
+
+static char *a2mpdplstatus2str(uint8_t status)
+{
+ switch (status) {
+ case A2MP_STATUS_SUCCESS:
+ return "Success";
+ case A2MP_STATUS_INVALID_CTRL_ID:
+ return "Invalid Controller ID";
+ case A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS:
+ return "Failed - No Physical Link exists";
+ default:
+ return "Reserved";
+ }
+}
+
static inline void command_rej(int level, struct frame *frm)
{
l2cap_cmd_rej *h = frm->ptr;
@@ -940,6 +1034,196 @@ static inline void move_cfm_rsp(int level, l2cap_cmd_hdr *cmd, struct frame *frm
printf("Move cfm rsp: icid 0x%4.4x\n", icid);
}
+static inline void a2mp_command_rej(int level, struct frame *frm)
+{
+ struct a2mp_command_rej *h = frm->ptr;
+ uint16_t reason = btohs(h->reason);
+
+ printf("Command Reject: reason %d\n", reason);
+ p_indent(level + 1, 0);
+ printf("%s\n", a2mpreason2str(reason));
+}
+
+static inline void a2mp_discover_req(int level, struct frame *frm, uint16_t len)
+{
+ struct a2mp_discover_req *h = frm->ptr;
+ uint16_t mtu = btohs(h->mtu);
+ uint8_t *octet = (uint8_t *)&(h->mask);
+ uint16_t mask;
+ uint8_t extension;
+
+ printf("Discover req: mtu/mps %d ", mtu);
+ len -= 2;
+
+ printf("mask:");
+
+ do {
+ len -= 2;
+ mask = btohs(*(uint16_t *)(&octet[0]));
+ printf(" 0x%4.4x", mask);
+
+ extension = octet[1] & 0x80;
+ octet += 2;
+ } while ((extension != 0) && (len >= 2));
+
+ printf("\n");
+}
+
+static inline void a2mp_ctrl_list_dump(int level, struct a2mp_ctrl *list, uint16_t len)
+{
+ p_indent(level, 0);
+ printf("Controller list:\n");
+
+ while (len >= 3) {
+ p_indent(level + 1, 0);
+ printf("id %d type %d (%s) status 0x%2.2x (%s)\n",
+ list->id, list->type, ampctrltype2str(list->type), list->status, ampctrlstatus2str(list->status));
+ list++;
+ len -= 3;
+ }
+
+}
+
+static inline void a2mp_discover_rsp(int level, struct frame *frm, uint16_t len)
+{
+ struct a2mp_discover_rsp *h = frm->ptr;
+ uint16_t mtu = btohs(h->mtu);
+ uint8_t *octet = (uint8_t *)&(h->mask);
+ uint16_t mask;
+ uint8_t extension;
+
+ printf("Discover rsp: mtu/mps %d ", mtu);
+ len -= 2;
+
+ printf("mask:");
+
+ do {
+ len -= 2;
+ mask = btohs(*(uint16_t *)(&octet[0]));
+ printf(" 0x%4.4x", mask);
+
+ extension = octet[1] & 0x80;
+ octet += 2;
+ } while ((extension != 0) && (len >= 2));
+
+ printf("\n");
+
+ if (len >= 3) {
+ a2mp_ctrl_list_dump(level + 1, (struct a2mp_ctrl *) octet, len);
+ }
+}
+
+static inline void a2mp_change_notify(int level, struct frame *frm, uint16_t len)
+{
+ struct a2mp_ctrl *list = frm->ptr;
+
+ printf("Change Notify\n");
+
+ if (len >= 3) {
+ a2mp_ctrl_list_dump(level + 1, list, len);
+ }
+}
+
+static inline void a2mp_change_rsp(int level, struct frame *frm)
+{
+ printf("Change Response\n");
+}
+
+static inline void a2mp_info_req(int level, struct frame *frm)
+{
+ struct a2mp_info_req *h = frm->ptr;
+
+ printf("Get Info req: id %d\n", h->id);
+}
+
+static inline void a2mp_info_rsp(int level, struct frame *frm)
+{
+ struct a2mp_info_rsp *h = frm->ptr;
+
+ printf("Get Info rsp: id %d status %d (%s)\n",
+ h->id, h->status, a2mpstatus2str(h->status));
+
+ p_indent(level + 1, 0);
+ printf("Total bandwidth %d\n", btohl(h->total_bw));
+ p_indent(level + 1, 0);
+ printf("Max guaranteed bandwidth %d\n", btohl(h->max_bw));
+ p_indent(level + 1, 0);
+ printf("Min latency %d\n", btohl(h->min_latency));
+ p_indent(level + 1, 0);
+ printf("Pal capabilities 0x%4.4x\n", btohs(h->pal_caps));
+ p_indent(level + 1, 0);
+ printf("Assoc size %d\n", btohs(h->assoc_size));
+}
+
+static inline void a2mp_assoc_req(int level, struct frame *frm)
+{
+ struct a2mp_assoc_req *h = frm->ptr;
+
+ printf("Get AMP Assoc req: id %d\n", h->id);
+}
+
+static inline void a2mp_assoc_dump(int level, uint8_t *assoc, uint16_t len)
+{
+ int i;
+
+ p_indent(level, 0);
+ printf("Assoc data:");
+ for (i = 0; i < len; i++) {
+ if (!(i%16)) {
+ printf("\n");
+ p_indent(level+1, 0);
+ }
+ printf("%2.2x ",*assoc++);
+ }
+ printf("\n");
+}
+
+static inline void a2mp_assoc_rsp(int level, struct frame *frm, uint16_t len)
+{
+ struct a2mp_assoc_rsp *h = frm->ptr;
+
+ printf("Get AMP Assoc rsp: id %d status (%d) %s \n",
+ h->id, h->status, a2mpstatus2str(h->status));
+ a2mp_assoc_dump(level + 1, (uint8_t *) &h->assoc_data, len - 2);
+}
+
+static inline void a2mp_create_req(int level, struct frame *frm, uint16_t len)
+{
+ struct a2mp_create_req *h = frm->ptr;
+
+ printf("Create Physical Link req: local id %d remote id %d\n",
+ h->local_id, h->remote_id);
+ a2mp_assoc_dump(level + 1, (uint8_t *) &h->assoc_data, len - 2);
+}
+
+static inline void a2mp_create_rsp(int level, struct frame *frm)
+{
+ struct a2mp_create_rsp *h = frm->ptr;
+
+ printf("Create Physical Link rsp: local id %d remote id %d status %d\n",
+ h->local_id, h->remote_id, h->status);
+ p_indent(level+1, 0);
+ printf("%s\n", a2mpcplstatus2str(h->status));
+}
+
+static inline void a2mp_disconn_req(int level, struct frame *frm)
+{
+ struct a2mp_disconn_req *h = frm->ptr;
+
+ printf("Disconnect Physical Link req: local id %d remote id %d\n",
+ h->local_id, h->remote_id);
+}
+
+static inline void a2mp_disconn_rsp(int level, struct frame *frm)
+{
+ struct a2mp_disconn_rsp *h = frm->ptr;
+
+ printf("Disconnect Physical Link rsp: local id %d remote id %d status %d\n",
+ h->local_id, h->remote_id, h->status);
+ p_indent(level+1, 0);
+ printf("%s\n", a2mpdplstatus2str(h->status));
+}
+
static void l2cap_parse(int level, struct frame *frm)
{
l2cap_hdr *hdr = (void *)frm->ptr;
@@ -1060,6 +1344,76 @@ static void l2cap_parse(int level, struct frame *frm)
p_indent(level, frm);
printf("L2CAP(c): len %d psm %d\n", dlen, psm);
raw_dump(level, frm);
+ } else if (cid == 0x3) {
+ /* AMP Manager channel */
+
+ if (p_filter(FILT_A2MP))
+ return;
+
+ /* Adjust for ERTM control bytes */
+ frm->ptr += 2;
+ frm->len -= 2;
+
+ while (frm->len >= A2MP_HDR_SIZE) {
+ struct a2mp_hdr *hdr = frm->ptr;
+
+ frm->ptr += A2MP_HDR_SIZE;
+ frm->len -= A2MP_HDR_SIZE;
+
+ p_indent(level, frm);
+ printf("A2MP: ");
+
+ switch (hdr->code) {
+ case A2MP_COMMAND_REJ:
+ a2mp_command_rej(level, frm);
+ break;
+ case A2MP_DISCOVER_REQ:
+ a2mp_discover_req(level, frm, btohs(hdr->len));
+ break;
+ case A2MP_DISCOVER_RSP:
+ a2mp_discover_rsp(level, frm, btohs(hdr->len));
+ break;
+ case A2MP_CHANGE_NOTIFY:
+ a2mp_change_notify(level, frm, btohs(hdr->len));
+ break;
+ case A2MP_CHANGE_RSP:
+ a2mp_change_rsp(level, frm);
+ break;
+ case A2MP_INFO_REQ:
+ a2mp_info_req(level, frm);
+ break;
+ case A2MP_INFO_RSP:
+ a2mp_info_rsp(level, frm);
+ break;
+ case A2MP_ASSOC_REQ:
+ a2mp_assoc_req(level, frm);
+ break;
+ case A2MP_ASSOC_RSP:
+ a2mp_assoc_rsp(level, frm, btohs(hdr->len));
+ break;
+ case A2MP_CREATE_REQ:
+ a2mp_create_req(level, frm, btohs(hdr->len));
+ break;
+ case A2MP_CREATE_RSP:
+ a2mp_create_rsp(level, frm);
+ break;
+ case A2MP_DISCONN_REQ:
+ a2mp_disconn_req(level, frm);
+ break;
+ case A2MP_DISCONN_RSP:
+ a2mp_disconn_rsp(level, frm);
+ break;
+ default:
+ printf("code 0x%2.2x ident %d len %d\n",
+ hdr->code, hdr->ident, btohs(hdr->len));
+ raw_dump(level, frm);
+ }
+ if (frm->len > btohs(hdr->len)) {
+ frm->len -= btohs(hdr->len);
+ frm->ptr += btohs(hdr->len);
+ } else
+ frm->len = 0;
+ }
} else if (cid == 0x04) {
if (!p_filter(FILT_ATT))
att_dump(level, frm);
diff --git a/parser/parser.h b/parser/parser.h
index e975808..22d18c3 100644
--- a/parser/parser.h
+++ b/parser/parser.h
@@ -80,6 +80,7 @@ struct frame {
#define FILT_AVCTP 0x0800
#define FILT_ATT 0x1000
#define FILT_SMP 0x2000
+#define FILT_A2MP 0x4000
#define FILT_OBEX 0x00010000
#define FILT_CAPI 0x00020000
diff --git a/src/hcidump.c b/src/hcidump.c
index 0c13360..2513c7c 100644
--- a/src/hcidump.c
+++ b/src/hcidump.c
@@ -802,6 +802,7 @@ static struct {
{ "hci", FILT_HCI },
{ "sco", FILT_SCO },
{ "l2cap", FILT_L2CAP },
+ { "a2mp", FILT_A2MP },
{ "rfcomm", FILT_RFCOMM },
{ "sdp", FILT_SDP },
{ "bnep", FILT_BNEP },
--
1.7.4.1
--
Peter Krystad
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
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