diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ipcpd/normal/enroll.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/src/ipcpd/normal/enroll.c b/src/ipcpd/normal/enroll.c index 16bfc592..cea33bf2 100644 --- a/src/ipcpd/normal/enroll.c +++ b/src/ipcpd/normal/enroll.c @@ -21,10 +21,12 @@ #define OUROBOROS_PREFIX "enrollment" #include <ouroboros/config.h> +#include <ouroboros/time_utils.h> #include <ouroboros/cdap.h> #include <ouroboros/dev.h> #include <ouroboros/logs.h> #include <ouroboros/rib.h> +#include <ouroboros/endian.h> #include "ae.h" @@ -32,10 +34,15 @@ #include <stdlib.h> #include <string.h> +/* Symbolic, will return current time */ +#define TIME_NAME "localtime" +#define ENROLL_WARN_TIME_OFFSET 20 + #define DLR "/" #define DIF_PATH DLR DIF_NAME #define BOOT_PATH DLR BOOT_NAME #define MEMBERS_PATH DLR MEMBERS_NAME +#define TIME_PATH DLR TIME_NAME int enroll_handle(int fd) { @@ -72,7 +79,6 @@ int enroll_handle(int fd) while (!(boot_r && members_r && dif_name_r)) { key = cdap_request_wait(ci, &oc, &name, &data, (size_t *) &len , &flags); - assert(key >= 0); assert(name); @@ -96,6 +102,15 @@ int enroll_handle(int fd) members_r = true; } else if (strcmp(name, dif_ro) == 0) { dif_name_r = true; + } else if (strcmp(name, TIME_PATH) == 0) { + struct timespec t; + uint64_t buf[2]; + clock_gettime(CLOCK_REALTIME, &t); + buf[0] = htonll(t.tv_sec); + buf[1] = htonll(t.tv_nsec); + cdap_reply_send(ci, key, 0, buf, sizeof(buf)); + free(name); + continue; } else { log_warn("Illegal read: %s.", name); cdap_reply_send(ci, key, -1, NULL, 0); @@ -146,6 +161,11 @@ int enroll_boot(char * dst_name) size_t len; int fd; + struct timespec t0; + struct timespec rtt; + + ssize_t delta_t; + char * boot_ro = BOOT_PATH; char * members_ro = MEMBERS_PATH; char * dif_ro = DIF_PATH; @@ -171,6 +191,37 @@ int enroll_boot(char * dst_name) log_dbg("Getting boot information from %s.", dst_name); + clock_gettime(CLOCK_REALTIME, &t0); + + key = cdap_request_send(ci, CDAP_READ, TIME_PATH, NULL, 0, 0); + if (key < 0) { + log_err("Failed to send CDAP request."); + cdap_destroy(ci); + flow_dealloc(fd); + return -1; + } + + if (cdap_reply_wait(ci, key, &data, &len)) { + log_err("Failed to get CDAP reply."); + cdap_destroy(ci); + flow_dealloc(fd); + return -1; + } + + clock_gettime(CLOCK_REALTIME, &rtt); + + delta_t = ts_diff_ms(&t0, &rtt); + + assert (len == 2 * sizeof (uint64_t)); + + rtt.tv_sec = ntohll(((uint64_t *) data)[0]); + rtt.tv_nsec = ntohll(((uint64_t *) data)[1]); + + if (abs(ts_diff_ms(&t0, &rtt)) - delta_t > ENROLL_WARN_TIME_OFFSET) + log_warn("Clock offset above threshold."); + + free(data); + key = cdap_request_send(ci, CDAP_READ, boot_ro, NULL, 0, 0); if (key < 0) { log_err("Failed to send CDAP request."); |