Module Name: src Committed By: christos Date: Thu Jun 17 12:53:43 UTC 2021
Modified Files: src/external/bsd/libfido2/dist/src: hid_netbsd.c Log Message: replace our merged version with upstream. To generate a diff of this commit: cvs rdiff -u -r1.2 -r1.3 src/external/bsd/libfido2/dist/src/hid_netbsd.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/external/bsd/libfido2/dist/src/hid_netbsd.c diff -u src/external/bsd/libfido2/dist/src/hid_netbsd.c:1.2 src/external/bsd/libfido2/dist/src/hid_netbsd.c:1.3 --- src/external/bsd/libfido2/dist/src/hid_netbsd.c:1.2 Wed Jun 16 21:15:46 2021 +++ src/external/bsd/libfido2/dist/src/hid_netbsd.c Thu Jun 17 08:53:43 2021 @@ -11,23 +11,22 @@ #include <dev/usb/usbhid.h> #include <errno.h> -#include <fcntl.h> #include <poll.h> +#include <signal.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> -#include <usbhid.h> #include "fido.h" #define MAX_UHID 64 struct hid_netbsd { - int fd; - size_t report_in_len; - size_t report_out_len; + int fd; + size_t report_in_len; + size_t report_out_len; sigset_t sigmask; const sigset_t *sigmaskp; }; @@ -41,47 +40,39 @@ struct hid_netbsd { static bool is_fido(int fd) { - report_desc_t rdesc; - hid_data_t hdata; - hid_item_t hitem; - bool isfido; + struct usb_ctl_report_desc ucrd; + uint32_t usage_page = 0; int raw = 1; - if ((rdesc = hid_get_report_desc(fd)) == NULL) { - fido_log_debug("%s: failed to get report descriptor", - __func__); + memset(&ucrd, 0, sizeof(ucrd)); + + if (ioctl(fd, IOCTL_REQ(USB_GET_REPORT_DESC), &ucrd) == -1) { + fido_log_error(errno, "%s: ioctl", __func__); return (false); } - if ((hdata = hid_start_parse(rdesc, 1 << hid_collection, -1)) - == NULL) { - fido_log_debug("%s: failed to parse report descriptor", - __func__); - hid_dispose_report_desc(rdesc); + + if (ucrd.ucrd_size < 0 || + (size_t)ucrd.ucrd_size > sizeof(ucrd.ucrd_data) || + fido_hid_get_usage(ucrd.ucrd_data, (size_t)ucrd.ucrd_size, + &usage_page) < 0) { + fido_log_debug("%s: fido_hid_get_usage", __func__); return (false); } - isfido = false; - while ((hid_get_item(hdata, &hitem)) > 0) { - if (HID_PAGE(hitem.usage) == 0xf1d0) { - isfido = true; - break; - } - } - hid_end_parse(hdata); - hid_dispose_report_desc(rdesc); - if (!isfido) + + if (usage_page != 0xf1d0) return (false); - /* + /* * This step is not strictly necessary -- NetBSD puts fido - * devices into raw mode automatically by default, but in - * principle that might change, and this serves as a test to - * verify that we're running on a kernel with support for raw - * mode at all so we don't get confused issuing writes that try - * to set the report descriptor rather than transfer data on - * the output interrupt pipe as we need. + * devices into raw mode automatically by default, but in + * principle that might change, and this serves as a test to + * verify that we're running on a kernel with support for raw + * mode at all so we don't get confused issuing writes that try + * to set the report descriptor rather than transfer data on + * the output interrupt pipe as we need. */ - if (ioctl(fd, USB_HID_SET_RAW, &raw) == -1) { - fido_log_debug("%s: unable to set raw", __func__); + if (ioctl(fd, IOCTL_REQ(USB_HID_SET_RAW), &raw) == -1) { + fido_log_error(errno, "%s: unable to set raw", __func__); return (false); } @@ -98,17 +89,13 @@ copy_info(fido_dev_info_t *di, const cha memset(di, 0, sizeof(*di)); memset(&udi, 0, sizeof(udi)); - if ((fd = open(path, O_RDWR)) == -1) { - if (errno != EBUSY && errno != ENOENT) - fido_log_debug("%s: open %s: %s", __func__, path, - strerror(errno)); - goto fail; - } - if (!is_fido(fd)) + if ((fd = fido_hid_unix_open(path)) == -1 || is_fido(fd) == 0) goto fail; - if (ioctl(fd, USB_GET_DEVICEINFO, &udi) == -1) + if (ioctl(fd, IOCTL_REQ(USB_GET_DEVICEINFO), &udi) == -1) { + fido_log_error(errno, "%s: ioctl", __func__); goto fail; + } if ((di->path = strdup(path)) == NULL || (di->manufacturer = strdup(udi.udi_vendor)) == NULL || @@ -120,8 +107,8 @@ copy_info(fido_dev_info_t *di, const cha ok = 0; fail: - if (fd != -1) - close(fd); + if (fd != -1 && close(fd) == -1) + fido_log_error(errno, "%s: close", __func__); if (ok < 0) { free(di->path); @@ -198,7 +185,7 @@ terrible_ping_kludge(struct hid_netbsd * pfd.fd = ctx->fd; pfd.events = POLLIN; if ((n = poll(&pfd, 1, 100)) == -1) { - fido_log_debug("%s: poll: %d", __func__, errno); + fido_log_error(errno, "%s: poll", __func__); return -1; } else if (n == 0) { fido_log_debug("%s: timed out", __func__); @@ -223,58 +210,40 @@ void * fido_hid_open(const char *path) { struct hid_netbsd *ctx; - report_desc_t rdesc = NULL; - hid_data_t hdata; - int len, report_id = 0; - - if ((ctx = calloc(1, sizeof(*ctx))) == NULL) - goto fail0; - if ((ctx->fd = open(path, O_RDWR)) == -1) - goto fail1; - if (ioctl(ctx->fd, USB_GET_REPORT_ID, &report_id) == -1) { - fido_log_debug("%s: failed to get report ID: %s", __func__, - strerror(errno)); - goto fail2; - } - if ((rdesc = hid_get_report_desc(ctx->fd)) == NULL) { - fido_log_debug("%s: failed to get report descriptor", - __func__); - goto fail2; - } - if ((hdata = hid_start_parse(rdesc, 1 << hid_collection, -1)) - == NULL) { - fido_log_debug("%s: failed to parse report descriptor", - __func__); - goto fail3; - } - if ((len = hid_report_size(rdesc, hid_input, report_id)) <= 0 || - (size_t)len > CTAP_MAX_REPORT_LEN) { - fido_log_debug("%s: bad input report size %d", __func__, len); - goto fail3; - } - ctx->report_in_len = (size_t)len; - if ((len = hid_report_size(rdesc, hid_output, report_id)) <= 0 || - (size_t)len > CTAP_MAX_REPORT_LEN) { - fido_log_debug("%s: bad output report size %d", __func__, len); - goto fail3; + struct usb_ctl_report_desc ucrd; + int r; + + memset(&ucrd, 0, sizeof(ucrd)); + + if ((ctx = calloc(1, sizeof(*ctx))) == NULL || + (ctx->fd = fido_hid_unix_open(path)) == -1) { + free(ctx); + return (NULL); + } + + if ((r = ioctl(ctx->fd, IOCTL_REQ(USB_GET_REPORT_DESC), &ucrd)) == -1 || + ucrd.ucrd_size < 0 || + (size_t)ucrd.ucrd_size > sizeof(ucrd.ucrd_data) || + fido_hid_get_report_len(ucrd.ucrd_data, (size_t)ucrd.ucrd_size, + &ctx->report_in_len, &ctx->report_out_len) < 0) { + if (r == -1) + fido_log_error(errno, "%s: ioctl", __func__); + fido_log_debug("%s: using default report sizes", __func__); + ctx->report_in_len = CTAP_MAX_REPORT_LEN; + ctx->report_out_len = CTAP_MAX_REPORT_LEN; } - ctx->report_out_len = (size_t)len; - hid_dispose_report_desc(rdesc); /* * NetBSD has a bug that causes it to lose * track of the DATA0/DATA1 sequence toggle across uhid device * open and close. This is a terrible hack to work around it. */ - if (!is_fido(ctx->fd) || terrible_ping_kludge(ctx) != 0) - goto fail2; + if (!is_fido(ctx->fd) || terrible_ping_kludge(ctx) != 0) { + fido_hid_close(ctx); + return NULL; + } return (ctx); - -fail3: hid_dispose_report_desc(rdesc); -fail2: close(ctx->fd); -fail1: free(ctx); -fail0: return (NULL); } void @@ -282,39 +251,10 @@ fido_hid_close(void *handle) { struct hid_netbsd *ctx = handle; - close(ctx->fd); - free(ctx); -} - -static void -xstrerror(int errnum, char *buf, size_t len) -{ - if (len < 1) - return; - - memset(buf, 0, len); - - if (strerror_r(errnum, buf, len - 1) != 0) - snprintf(buf, len - 1, "error %d", errnum); -} - -static int -timespec_to_ms(const struct timespec *ts, int upper_bound) -{ - int64_t x; - int64_t y; + if (close(ctx->fd) == -1) + fido_log_error(errno, "%s: close", __func__); - if (ts->tv_sec < 0 || (uint64_t)ts->tv_sec > INT64_MAX / 1000LL || - ts->tv_nsec < 0 || (uint64_t)ts->tv_nsec / 1000000LL > INT64_MAX) - return (upper_bound); - - x = ts->tv_sec * 1000LL; - y = ts->tv_nsec / 1000000LL; - - if (INT64_MAX - x < y || x + y > upper_bound) - return (upper_bound); - - return (int)(x + y); + free(ctx); } int @@ -344,8 +284,13 @@ fido_hid_read(void *handle, unsigned cha return (-1); } - if ((r = read(ctx->fd, buf, len)) == -1 || (size_t)r != len) { - fido_log_debug("%s: read", __func__); + if ((r = read(ctx->fd, buf, len)) == -1) { + fido_log_error(errno, "%s: read", __func__); + return (-1); + } + + if (r < 0 || (size_t)r != len) { + fido_log_error(errno, "%s: %zd != %zu", __func__, r, len); return (-1); } @@ -363,9 +308,13 @@ fido_hid_write(void *handle, const unsig return (-1); } - if ((r = write(ctx->fd, buf + 1, len - 1)) == -1 || - (size_t)r != len - 1) { - fido_log_debug("%s: write", __func__); + if ((r = write(ctx->fd, buf + 1, len - 1)) == -1) { + fido_log_error(errno, "%s: write", __func__); + return (-1); + } + + if (r < 0 || (size_t)r != len - 1) { + fido_log_error(errno, "%s: %zd != %zu", __func__, r, len - 1); return (-1); }