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emulator: Fix integer truncation warnings
Error: INTEGER_OVERFLOW (CWE-190): [#def1] [important] emulator/amp.c:693:2: cast_overflow: Truncation due to cast operation on "(remain_assoc_len > 248) ? 248 : remain_assoc_len" from 32 to 16 bits. emulator/amp.c:693:2: overflow_assign: "fragment_len" is assigned from "(remain_assoc_len > 248) ? 248 : remain_assoc_len". emulator/amp.c:698:2: overflow_sink: "fragment_len", which might have overflowed, is passed to "memcpy(rsp.assoc_fragment, amp->local_assoc + len_so_far, fragment_len)". [Note: The source code implementation of the function has been overridden by a builtin model.] 696| rsp.phy_handle = cmd->phy_handle; 697| rsp.remain_assoc_len = cpu_to_le16(remain_assoc_len); 698|-> memcpy(rsp.assoc_fragment, amp->local_assoc + len_so_far, 699| fragment_len); 700| Error: INTEGER_OVERFLOW (CWE-190): [#def2] [important] emulator/amp.c:701:2: cast_overflow: Truncation due to cast operation on "4 + fragment_len" from 32 to 8 bits. emulator/amp.c:701:2: overflow_sink: "4 + fragment_len", which might have overflowed, is passed to "cmd_complete(amp, 5130, &rsp, 4 + fragment_len)". 699| fragment_len); 700| 701|-> cmd_complete(amp, BT_HCI_CMD_READ_LOCAL_AMP_ASSOC, 702| &rsp, 4 + fragment_len); 703| } Error: INTEGER_OVERFLOW (CWE-190): [#def4] [important] emulator/bthost.c:3309:3: cast_overflow: Truncation due to cast operation on "len - offset" from 32 to 8 bits. emulator/bthost.c:3309:3: overflow_assign: "cp->data_len" is assigned from "len - offset". emulator/bthost.c:3317:2: overflow_sink: "cp->data_len", which might have overflowed, is passed to "memcpy(cp->data, data + offset, cp->data_len)". [Note: The source code implementation of the function has been overridden by a builtin model.] 3315| } 3316| 3317|-> memcpy(cp->data, data + offset, cp->data_len); 3318| 3319| send_command(bthost, BT_HCI_CMD_LE_SET_PA_DATA, buf,
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@ -680,7 +680,8 @@ static void cmd_read_local_amp_assoc(struct bt_amp *amp,
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{
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const struct bt_hci_cmd_read_local_amp_assoc *cmd = data;
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struct bt_hci_rsp_read_local_amp_assoc rsp;
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uint16_t len_so_far, remain_assoc_len, fragment_len;
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uint16_t len_so_far, remain_assoc_len;
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size_t fragment_len;
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if (cmd->phy_handle != amp->phy_handle) {
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cmd_status(amp, BT_HCI_ERR_INVALID_PARAMETERS,
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@ -3290,6 +3290,7 @@ static void set_pa_data(struct bthost *bthost, const uint8_t *data,
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{
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struct bt_hci_cmd_le_set_pa_data *cp;
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uint8_t buf[sizeof(*cp) + BT_PA_MAX_DATA_LEN];
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size_t data_len;
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cp = (void *)buf;
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@ -3299,14 +3300,14 @@ static void set_pa_data(struct bthost *bthost, const uint8_t *data,
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cp->handle = 1;
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if (len - offset > BT_PA_MAX_DATA_LEN) {
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cp->data_len = BT_PA_MAX_DATA_LEN;
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data_len = BT_PA_MAX_DATA_LEN;
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if (!offset)
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cp->operation = 0x01;
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else
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cp->operation = 0x00;
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} else {
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cp->data_len = len - offset;
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data_len = len - offset;
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if (!offset)
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cp->operation = 0x03;
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@ -3314,7 +3315,8 @@ static void set_pa_data(struct bthost *bthost, const uint8_t *data,
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cp->operation = 0x02;
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}
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memcpy(cp->data, data + offset, cp->data_len);
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memcpy(cp->data, data + offset, data_len);
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cp->data_len = data_len;
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send_command(bthost, BT_HCI_CMD_LE_SET_PA_DATA, buf,
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sizeof(*cp) + cp->data_len);
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