| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Takahiro Hirofuchi | 774 | 71.87% | 2 | 6.90% |
| Nazime Hande Harputluoglu | 86 | 7.99% | 1 | 3.45% |
| Matt Mooney | 78 | 7.24% | 4 | 13.79% |
| Brian G. Merrell | 38 | 3.53% | 1 | 3.45% |
| Oleg Nesterov | 22 | 2.04% | 1 | 3.45% |
| Igor Kotrasinski | 20 | 1.86% | 1 | 3.45% |
| Nobuo Iwata | 18 | 1.67% | 1 | 3.45% |
| Shuah Khan | 12 | 1.11% | 4 | 13.79% |
| Malte Leip | 5 | 0.46% | 1 | 3.45% |
| Bart Westgeest | 5 | 0.46% | 3 | 10.34% |
| Ingo Molnar | 4 | 0.37% | 2 | 6.90% |
| Alexander Thomas | 4 | 0.37% | 1 | 3.45% |
| Arnd Bergmann | 4 | 0.37% | 1 | 3.45% |
| Greg Kroah-Hartman | 2 | 0.19% | 2 | 6.90% |
| David Woodhouse | 2 | 0.19% | 1 | 3.45% |
| Arjan Mels | 1 | 0.09% | 1 | 3.45% |
| Valentina Manea | 1 | 0.09% | 1 | 3.45% |
| Alexander Popov | 1 | 0.09% | 1 | 3.45% |
| Total | 1077 | 29 |
// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2003-2008 Takahiro Hirofuchi * Copyright (C) 2015-2016 Samsung Electronics * Krzysztof Opasiak <k.opasiak@samsung.com> */ #ifndef __USBIP_COMMON_H #define __USBIP_COMMON_H #include <linux/compiler.h> #include <linux/device.h> #include <linux/interrupt.h> #include <linux/net.h> #include <linux/printk.h> #include <linux/spinlock.h> #include <linux/types.h> #include <linux/usb.h> #include <linux/wait.h> #include <linux/sched/task.h> #include <linux/kcov.h> #include <uapi/linux/usbip.h> #undef pr_fmt #ifdef DEBUG #define pr_fmt(fmt) KBUILD_MODNAME ": %s:%d: " fmt, __func__, __LINE__ #else #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #endif enum { usbip_debug_xmit = (1 << 0), usbip_debug_sysfs = (1 << 1), usbip_debug_urb = (1 << 2), usbip_debug_eh = (1 << 3), usbip_debug_stub_cmp = (1 << 8), usbip_debug_stub_dev = (1 << 9), usbip_debug_stub_rx = (1 << 10), usbip_debug_stub_tx = (1 << 11), usbip_debug_vhci_rh = (1 << 8), usbip_debug_vhci_hc = (1 << 9), usbip_debug_vhci_rx = (1 << 10), usbip_debug_vhci_tx = (1 << 11), usbip_debug_vhci_sysfs = (1 << 12) }; #define usbip_dbg_flag_xmit (usbip_debug_flag & usbip_debug_xmit) #define usbip_dbg_flag_vhci_rh (usbip_debug_flag & usbip_debug_vhci_rh) #define usbip_dbg_flag_vhci_hc (usbip_debug_flag & usbip_debug_vhci_hc) #define usbip_dbg_flag_vhci_rx (usbip_debug_flag & usbip_debug_vhci_rx) #define usbip_dbg_flag_vhci_tx (usbip_debug_flag & usbip_debug_vhci_tx) #define usbip_dbg_flag_stub_rx (usbip_debug_flag & usbip_debug_stub_rx) #define usbip_dbg_flag_stub_tx (usbip_debug_flag & usbip_debug_stub_tx) #define usbip_dbg_flag_vhci_sysfs (usbip_debug_flag & usbip_debug_vhci_sysfs) extern unsigned long usbip_debug_flag; extern struct device_attribute dev_attr_usbip_debug; #define usbip_dbg_with_flag(flag, fmt, args...) \ do { \ if (flag & usbip_debug_flag) \ pr_debug(fmt, ##args); \ } while (0) #define usbip_dbg_sysfs(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_sysfs, fmt , ##args) #define usbip_dbg_xmit(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_xmit, fmt , ##args) #define usbip_dbg_urb(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_urb, fmt , ##args) #define usbip_dbg_eh(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_eh, fmt , ##args) #define usbip_dbg_vhci_rh(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_vhci_rh, fmt , ##args) #define usbip_dbg_vhci_hc(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_vhci_hc, fmt , ##args) #define usbip_dbg_vhci_rx(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_vhci_rx, fmt , ##args) #define usbip_dbg_vhci_tx(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_vhci_tx, fmt , ##args) #define usbip_dbg_vhci_sysfs(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_vhci_sysfs, fmt , ##args) #define usbip_dbg_stub_cmp(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_stub_cmp, fmt , ##args) #define usbip_dbg_stub_rx(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_stub_rx, fmt , ##args) #define usbip_dbg_stub_tx(fmt, args...) \ usbip_dbg_with_flag(usbip_debug_stub_tx, fmt , ##args) /* * USB/IP request headers * * Each request is transferred across the network to its counterpart, which * facilitates the normal USB communication. The values contained in the headers * are basically the same as in a URB. Currently, four request types are * defined: * * - USBIP_CMD_SUBMIT: a USB request block, corresponds to usb_submit_urb() * (client to server) * * - USBIP_RET_SUBMIT: the result of USBIP_CMD_SUBMIT * (server to client) * * - USBIP_CMD_UNLINK: an unlink request of a pending USBIP_CMD_SUBMIT, * corresponds to usb_unlink_urb() * (client to server) * * - USBIP_RET_UNLINK: the result of USBIP_CMD_UNLINK * (server to client) * */ #define USBIP_CMD_SUBMIT 0x0001 #define USBIP_CMD_UNLINK 0x0002 #define USBIP_RET_SUBMIT 0x0003 #define USBIP_RET_UNLINK 0x0004 #define USBIP_DIR_OUT 0x00 #define USBIP_DIR_IN 0x01 /* * Arbitrary limit for the maximum number of isochronous packets in an URB, * compare for example the uhci_submit_isochronous function in * drivers/usb/host/uhci-q.c */ #define USBIP_MAX_ISO_PACKETS 1024 /** * struct usbip_header_basic - data pertinent to every request * @command: the usbip request type * @seqnum: sequential number that identifies requests; incremented per * connection * @devid: specifies a remote USB device uniquely instead of busnum and devnum; * in the stub driver, this value is ((busnum << 16) | devnum) * @direction: direction of the transfer * @ep: endpoint number */ struct usbip_header_basic { __u32 command; __u32 seqnum; __u32 devid; __u32 direction; __u32 ep; } __packed; /** * struct usbip_header_cmd_submit - USBIP_CMD_SUBMIT packet header * @transfer_flags: URB flags * @transfer_buffer_length: the data size for (in) or (out) transfer * @start_frame: initial frame for isochronous or interrupt transfers * @number_of_packets: number of isochronous packets * @interval: maximum time for the request on the server-side host controller * @setup: setup data for a control request */ struct usbip_header_cmd_submit { __u32 transfer_flags; __s32 transfer_buffer_length; /* it is difficult for usbip to sync frames (reserved only?) */ __s32 start_frame; __s32 number_of_packets; __s32 interval; unsigned char setup[8]; } __packed; /** * struct usbip_header_ret_submit - USBIP_RET_SUBMIT packet header * @status: return status of a non-iso request * @actual_length: number of bytes transferred * @start_frame: initial frame for isochronous or interrupt transfers * @number_of_packets: number of isochronous packets * @error_count: number of errors for isochronous transfers */ struct usbip_header_ret_submit { __s32 status; __s32 actual_length; __s32 start_frame; __s32 number_of_packets; __s32 error_count; } __packed; /** * struct usbip_header_cmd_unlink - USBIP_CMD_UNLINK packet header * @seqnum: the URB seqnum to unlink */ struct usbip_header_cmd_unlink { __u32 seqnum; } __packed; /** * struct usbip_header_ret_unlink - USBIP_RET_UNLINK packet header * @status: return status of the request */ struct usbip_header_ret_unlink { __s32 status; } __packed; /** * struct usbip_header - common header for all usbip packets * @base: the basic header * @u: packet type dependent header */ struct usbip_header { struct usbip_header_basic base; union { struct usbip_header_cmd_submit cmd_submit; struct usbip_header_ret_submit ret_submit; struct usbip_header_cmd_unlink cmd_unlink; struct usbip_header_ret_unlink ret_unlink; } u; } __packed; /* * This is the same as usb_iso_packet_descriptor but packed for pdu. */ struct usbip_iso_packet_descriptor { __u32 offset; __u32 length; /* expected length */ __u32 actual_length; __u32 status; } __packed; enum usbip_side { USBIP_VHCI, USBIP_STUB, USBIP_VUDC, }; /* event handler */ #define USBIP_EH_SHUTDOWN (1 << 0) #define USBIP_EH_BYE (1 << 1) #define USBIP_EH_RESET (1 << 2) #define USBIP_EH_UNUSABLE (1 << 3) #define SDEV_EVENT_REMOVED (USBIP_EH_SHUTDOWN | USBIP_EH_BYE) #define SDEV_EVENT_DOWN (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) #define SDEV_EVENT_ERROR_TCP (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) #define SDEV_EVENT_ERROR_SUBMIT (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) #define SDEV_EVENT_ERROR_MALLOC (USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE) #define VUDC_EVENT_REMOVED (USBIP_EH_SHUTDOWN | USBIP_EH_RESET | USBIP_EH_BYE) #define VUDC_EVENT_DOWN (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) #define VUDC_EVENT_ERROR_TCP (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) /* catastrophic emulated usb error */ #define VUDC_EVENT_ERROR_USB (USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE) #define VUDC_EVENT_ERROR_MALLOC (USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE) #define VDEV_EVENT_REMOVED (USBIP_EH_SHUTDOWN | USBIP_EH_RESET | USBIP_EH_BYE) #define VDEV_EVENT_DOWN (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) #define VDEV_EVENT_ERROR_TCP (USBIP_EH_SHUTDOWN | USBIP_EH_RESET) #define VDEV_EVENT_ERROR_MALLOC (USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE) /* a common structure for stub_device and vhci_device */ struct usbip_device { enum usbip_side side; enum usbip_device_status status; /* lock for status */ spinlock_t lock; /* mutex for synchronizing sysfs store paths */ struct mutex sysfs_lock; int sockfd; struct socket *tcp_socket; struct task_struct *tcp_rx; struct task_struct *tcp_tx; unsigned long event; wait_queue_head_t eh_waitq; struct eh_ops { void (*shutdown)(struct usbip_device *); void (*reset)(struct usbip_device *); void (*unusable)(struct usbip_device *); } eh_ops; #ifdef CONFIG_KCOV u64 kcov_handle; #endif }; #define kthread_get_run(threadfn, data, namefmt, ...) \ ({ \ struct task_struct *__k \ = kthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \ if (!IS_ERR(__k)) { \ get_task_struct(__k); \ wake_up_process(__k); \ } \ __k; \ }) #define kthread_stop_put(k) \ do { \ kthread_stop(k); \ put_task_struct(k); \ } while (0) /* usbip_common.c */ void usbip_dump_urb(struct urb *purb); void usbip_dump_header(struct usbip_header *pdu); int usbip_recv(struct socket *sock, void *buf, int size); void usbip_pack_pdu(struct usbip_header *pdu, struct urb *urb, int cmd, int pack); void usbip_header_correct_endian(struct usbip_header *pdu, int send); struct usbip_iso_packet_descriptor* usbip_alloc_iso_desc_pdu(struct urb *urb, ssize_t *bufflen); /* some members of urb must be substituted before. */ int usbip_recv_iso(struct usbip_device *ud, struct urb *urb); void usbip_pad_iso(struct usbip_device *ud, struct urb *urb); int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb); /* usbip_event.c */ int usbip_init_eh(void); void usbip_finish_eh(void); int usbip_start_eh(struct usbip_device *ud); void usbip_stop_eh(struct usbip_device *ud); void usbip_event_add(struct usbip_device *ud, unsigned long event); int usbip_event_happened(struct usbip_device *ud); int usbip_in_eh(struct task_struct *task); static inline int interface_to_busnum(struct usb_interface *interface) { struct usb_device *udev = interface_to_usbdev(interface); return udev->bus->busnum; } static inline int interface_to_devnum(struct usb_interface *interface) { struct usb_device *udev = interface_to_usbdev(interface); return udev->devnum; } #ifdef CONFIG_KCOV static inline void usbip_kcov_handle_init(struct usbip_device *ud) { ud->kcov_handle = kcov_common_handle(); } static inline void usbip_kcov_remote_start(struct usbip_device *ud) { kcov_remote_start_common(ud->kcov_handle); } static inline void usbip_kcov_remote_stop(void) { kcov_remote_stop(); } #else /* CONFIG_KCOV */ static inline void usbip_kcov_handle_init(struct usbip_device *ud) { } static inline void usbip_kcov_remote_start(struct usbip_device *ud) { } static inline void usbip_kcov_remote_stop(void) { } #endif /* CONFIG_KCOV */ #endif /* __USBIP_COMMON_H */
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