diff options
Diffstat (limited to 'fuzz/usb_pd_fuzz.c')
| -rw-r--r-- | fuzz/usb_pd_fuzz.c | 102 |
1 files changed, 63 insertions, 39 deletions
diff --git a/fuzz/usb_pd_fuzz.c b/fuzz/usb_pd_fuzz.c index 64eb0913a6..bb462b9e61 100644 --- a/fuzz/usb_pd_fuzz.c +++ b/fuzz/usb_pd_fuzz.c @@ -1,10 +1,9 @@ -/* Copyright 2018 The Chromium OS Authors. All rights reserved. +/* Copyright 2018 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. * * Test USB PD module. */ -#define HIDE_EC_STDLIB #include "common.h" #include "task.h" #include "tcpm/tcpm.h" @@ -20,17 +19,26 @@ #define TASK_EVENT_FUZZ TASK_EVENT_CUSTOM_BIT(0) -#define PORT0 0 +#define PORT0 0 -static int mock_tcpm_init(int port) { return EC_SUCCESS; } -static int mock_tcpm_release(int port) { return EC_SUCCESS; } +static int mock_tcpm_init(int port) +{ + return EC_SUCCESS; +} +static int mock_tcpm_release(int port) +{ + return EC_SUCCESS; +} static int mock_tcpm_select_rp_value(int port, int rp) { return EC_SUCCESS; } -static int mock_tcpm_set_cc(int port, int pull) { return EC_SUCCESS; } +static int mock_tcpm_set_cc(int port, int pull) +{ + return EC_SUCCESS; +} static int mock_tcpm_set_polarity(int port, enum tcpc_cc_polarity polarity) { return EC_SUCCESS; @@ -41,16 +49,28 @@ static __maybe_unused int mock_tcpm_sop_prime_enable(int port, bool enable) return EC_SUCCESS; } -static int mock_tcpm_set_vconn(int port, int enable) { return EC_SUCCESS; } -static int mock_tcpm_set_msg_header(int port, - int power_role, int data_role) { return EC_SUCCESS; } -static int mock_tcpm_set_rx_enable(int port, int enable) { return EC_SUCCESS; } +static int mock_tcpm_set_vconn(int port, int enable) +{ + return EC_SUCCESS; +} +static int mock_tcpm_set_msg_header(int port, int power_role, int data_role) +{ + return EC_SUCCESS; +} +static int mock_tcpm_set_rx_enable(int port, int enable) +{ + return EC_SUCCESS; +} static int mock_tcpm_transmit(int port, enum tcpci_msg_type type, - uint16_t header, const uint32_t *data) -{ return EC_SUCCESS; } -static void mock_tcpc_alert(int port) {} + uint16_t header, const uint32_t *data) +{ + return EC_SUCCESS; +} +static void mock_tcpc_alert(int port) +{ +} static int mock_tcpci_get_chip_info(int port, int live, - struct ec_response_pd_chip_info_v1 *info) + struct ec_response_pd_chip_info_v1 *info) { return EC_ERROR_UNIMPLEMENTED; } @@ -76,7 +96,7 @@ struct tcpc_state { static struct tcpc_state mock_tcpc_state[CONFIG_USB_PD_PORT_MAX_COUNT]; static int mock_tcpm_get_cc(int port, enum tcpc_cc_voltage_status *cc1, - enum tcpc_cc_voltage_status *cc2) + enum tcpc_cc_voltage_status *cc2) { *cc1 = mock_tcpc_state[port].cc1; *cc2 = mock_tcpc_state[port].cc2; @@ -125,31 +145,33 @@ int tcpm_enqueue_message(const int port) return EC_SUCCESS; } -void tcpm_clear_pending_messages(int port) {} +void tcpm_clear_pending_messages(int port) +{ +} static const struct tcpm_drv mock_tcpm_drv = { - .init = &mock_tcpm_init, - .release = &mock_tcpm_release, - .get_cc = &mock_tcpm_get_cc, + .init = &mock_tcpm_init, + .release = &mock_tcpm_release, + .get_cc = &mock_tcpm_get_cc, #ifdef CONFIG_USB_PD_VBUS_DETECT_TCPC - .check_vbus_level = &mock_tcpm_check_vbus_level, + .check_vbus_level = &mock_tcpm_check_vbus_level, #endif - .select_rp_value = &mock_tcpm_select_rp_value, - .set_cc = &mock_tcpm_set_cc, - .set_polarity = &mock_tcpm_set_polarity, + .select_rp_value = &mock_tcpm_select_rp_value, + .set_cc = &mock_tcpm_set_cc, + .set_polarity = &mock_tcpm_set_polarity, #ifdef CONFIG_USB_PD_DECODE_SOP - .sop_prime_enable = &mock_tcpm_sop_prime_enable, + .sop_prime_enable = &mock_tcpm_sop_prime_enable, #endif - .set_vconn = &mock_tcpm_set_vconn, - .set_msg_header = &mock_tcpm_set_msg_header, - .set_rx_enable = &mock_tcpm_set_rx_enable, + .set_vconn = &mock_tcpm_set_vconn, + .set_msg_header = &mock_tcpm_set_msg_header, + .set_rx_enable = &mock_tcpm_set_rx_enable, /* The core calls tcpm_dequeue_message. */ - .get_message_raw = NULL, - .transmit = &mock_tcpm_transmit, - .tcpc_alert = &mock_tcpc_alert, - .get_chip_info = &mock_tcpci_get_chip_info, + .get_message_raw = NULL, + .transmit = &mock_tcpm_transmit, + .tcpc_alert = &mock_tcpc_alert, + .get_chip_info = &mock_tcpci_get_chip_info, #ifdef CONFIG_USB_PD_TCPC_LOW_POWER - .enter_low_power_mode = &mock_enter_low_power_mode, + .enter_low_power_mode = &mock_enter_low_power_mode, #endif }; @@ -170,7 +192,7 @@ enum tcpc_cc_voltage_status next_cc1, next_cc2; #define MAX_MESSAGES 8 static struct message messages[MAX_MESSAGES]; -void run_test(int argc, char **argv) +void run_test(int argc, const char **argv) { uint8_t port = PORT0; int i; @@ -181,8 +203,8 @@ void run_test(int argc, char **argv) while (1) { task_wait_event_mask(TASK_EVENT_FUZZ, -1); - memset(&mock_tcpc_state[port], - 0, sizeof(mock_tcpc_state[port])); + memset(&mock_tcpc_state[port], 0, + sizeof(mock_tcpc_state[port])); task_set_event(PD_PORT_TO_TASK_ID(port), PD_EVENT_TCPC_RESET); task_wait_event(250 * MSEC); @@ -196,7 +218,7 @@ void run_test(int argc, char **argv) /* Fake RX messages, one by one. */ for (i = 0; i < MAX_MESSAGES && messages[i].cnt; i++) { memcpy(&mock_tcpc_state[port].message, &messages[i], - sizeof(messages[i])); + sizeof(messages[i])); tcpm_enqueue_message(port); task_wait_event(50 * MSEC); @@ -220,21 +242,23 @@ int test_fuzz_one_input(const uint8_t *data, unsigned int size) next_cc1 = data[0] & 0x0f; next_cc2 = (data[0] & 0xf0) >> 4; - data++; size--; + data++; + size--; memset(messages, 0, sizeof(messages)); for (i = 0; i < MAX_MESSAGES && size > 0; i++) { int cnt = data[0]; - if (cnt < 3 || cnt > MAX_TCPC_PAYLOAD+3 || cnt > size) { + if (cnt < 3 || cnt > MAX_TCPC_PAYLOAD + 3 || cnt > size) { /* Invalid count, or out of bounds. */ return 0; } memcpy(&messages[i], data, cnt); - data += cnt; size -= cnt; + data += cnt; + size -= cnt; } if (size != 0) { |