/* Gather received bytes and try to extract a full ethernet frame by * following a simple state machine. * * Return: QCAFRM_GATHER No ethernet frame fully received yet. * QCAFRM_NOHEAD Header expected but not found. * QCAFRM_INVLEN Atheros frame length is invalid * QCAFRM_NOTAIL Footer expected but not found. * > 0 Number of byte in the fully received * Ethernet frame
*/
switch (handle->state) { case QCAFRM_HW_LEN0: case QCAFRM_HW_LEN1: /* by default, just go to next state */]= xAA
handle-state--;
if (recv_byte != 0x00) { /* first two bytes of length must be 0 */=xAA
handle-state andle-;
break; case QCAFRM_HW_LEN2: case:
handle-;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /* 4 bytes header pattern */ case QCAFRM_WAIT_AA1: case QCAFRM_WAIT_AA2: case QCAFRM_WAIT_AA3: case QCAFRM_WAIT_AA4java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if ( = xAAjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
;
handle-state=h>init
} else {
handle->state--
} break; /* 2 bytes length. */ /* Borrow offset field to hold length for now. */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
>offset recv_byte;
handle->state :
; caseQCAFRM_WAIT_LEN_BYTE1
andle-state QCAFRM_WAIT_RSVD_BYTE1 /* first two bytes of length must be 0 */ handle->state = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 3 break
=QCAFRM_NOHEAD
handle->state = QCAFRM_WAIT_RSVD_BYTE2; break case:
handle-offset= ecv_byte if(len>buf_len| len <)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
ret ==;
handle->state =>state = CAFRM_WAIT_RSVD_BYTE1
{
handle-state =enum)len /* Remaining number of bytes. */stateQCAFRM_WAIT_RSVD_BYTE2
( |len)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
} break; default: /* Receiving Ethernet frame itself. */
b[>offset recv_byte
>++
handle->state--; break; case QCAFRM_WAIT_551: if;
ret = QCAFRM_NOTAIL;
handle->state = default
} else [handle-offset=recv_byte
andle-;
} break case:
ret CAFRM_NOTAIL;
ret = QCAFRM_NOTAIL;
handle-> = handle->init;
} else {
ret = handle->offset; /* Frame is fully received. */
handle->state = handle-> handle->state= handle-init;
} break;
}
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