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module-avb: check that PTP management response is complete

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Nils Tonnaett 2026-01-16 20:35:14 -08:00 • committed by hackerman-kl
parent 6c43bdfa85
commit 07533eb590
1 changed files with 7 additions and 1 deletions
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8
src/modules/module-avb/gptp.c
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@ -114,11 +114,17 @@ static bool update_ts_refclk(struct gptp *gptp) {
} }
uint8_t buf[sizeof(struct ptp_management_msg) + sizeof(struct ptp_parent_data_set)]; uint8_t buf[sizeof(struct ptp_management_msg) + sizeof(struct ptp_parent_data_set)];
if (read(gptp->ptp_fd, &buf, sizeof(buf)) == -1) { ssize_t ret = read(gptp->ptp_fd, &buf, sizeof(buf));
if (ret == -1) {
pw_log_warn("Failed to receive PTP management response: %m"); pw_log_warn("Failed to receive PTP management response: %m");
return false; return false;
} }
if (ret != sizeof(buf)) {
pw_log_warn("Received incomplete PTP management response: %m");
return false;
}
struct ptp_management_msg res = *(struct ptp_management_msg *)buf; struct ptp_management_msg res = *(struct ptp_management_msg *)buf;
struct ptp_parent_data_set parent = struct ptp_parent_data_set parent =
*(struct ptp_parent_data_set *)(buf + sizeof(struct ptp_management_msg)); *(struct ptp_parent_data_set *)(buf + sizeof(struct ptp_management_msg));