From 62ea2821e389332d13cc05eb1ac6e77a7787f2db Mon Sep 17 00:00:00 2001 From: Kaspar Schleiser Date: Tue, 7 Jan 2014 13:58:38 +0100 Subject: [PATCH] fix NTP server option handling previously, only option 56 (NTP server) was supported, but named SNTP_* throughout code and in the scripts environment. This patch fixes this and adds optnion 31 (SNTP Servers) support. Uses NTP_IP and NTP_FQDN and SNTP_IP in script environment. Contributed by T-Labs, Deutsche Telekom Innovation Laboratories --- src/dhcpv6.c | 11 ++++++++--- src/odhcp6c.c | 3 ++- src/odhcp6c.h | 4 +++- src/script.c | 8 +++++--- 4 files changed, 18 insertions(+), 8 deletions(-) diff --git a/src/dhcpv6.c b/src/dhcpv6.c index 9e3d6c4..dca0ed4 100644 --- a/src/dhcpv6.c +++ b/src/dhcpv6.c @@ -163,6 +163,7 @@ int init_dhcpv6(const char *ifname, int request_pd, int sol_timeout) htons(DHCPV6_OPT_SIP_SERVER_A), htons(DHCPV6_OPT_DNS_SERVERS), htons(DHCPV6_OPT_DNS_DOMAIN), + htons(DHCPV6_OPT_SNTP_SERVERS), htons(DHCPV6_OPT_NTP_SERVER), htons(DHCPV6_OPT_AFTR_NAME), htons(DHCPV6_OPT_PD_EXCLUDE), @@ -808,7 +809,8 @@ static int dhcpv6_handle_reply(enum dhcpv6_msg orig, _unused const int rc, odhcp6c_clear_state(STATE_DNS); odhcp6c_clear_state(STATE_SEARCH); odhcp6c_clear_state(STATE_SNTP_IP); - odhcp6c_clear_state(STATE_SNTP_FQDN); + odhcp6c_clear_state(STATE_NTP_IP); + odhcp6c_clear_state(STATE_NTP_FQDN); odhcp6c_clear_state(STATE_SIP_IP); odhcp6c_clear_state(STATE_SIP_FQDN); odhcp6c_clear_state(STATE_AFTR_NAME); @@ -865,6 +867,9 @@ static int dhcpv6_handle_reply(enum dhcpv6_msg orig, _unused const int rc, odhcp6c_add_state(STATE_DNS, odata, olen); } else if (otype == DHCPV6_OPT_DNS_DOMAIN) { odhcp6c_add_state(STATE_SEARCH, odata, olen); + } else if (otype == DHCPV6_OPT_SNTP_SERVERS) { + if (olen % 16 == 0) + odhcp6c_add_state(STATE_SNTP_IP, odata, olen); } else if (otype == DHCPV6_OPT_NTP_SERVER) { uint16_t stype, slen; uint8_t *sdata; @@ -873,10 +878,10 @@ static int dhcpv6_handle_reply(enum dhcpv6_msg orig, _unused const int rc, stype, slen, sdata) { if (slen == 16 && (stype == NTP_MC_ADDR || stype == NTP_SRV_ADDR)) - odhcp6c_add_state(STATE_SNTP_IP, + odhcp6c_add_state(STATE_NTP_IP, sdata, slen); else if (slen > 0 && stype == NTP_SRV_FQDN) - odhcp6c_add_state(STATE_SNTP_FQDN, + odhcp6c_add_state(STATE_NTP_FQDN, sdata, slen); } } else if (otype == DHCPV6_OPT_SIP_SERVER_A) { diff --git a/src/odhcp6c.c b/src/odhcp6c.c index e9937ad..2159363 100644 --- a/src/odhcp6c.c +++ b/src/odhcp6c.c @@ -226,7 +226,8 @@ int main(_unused int argc, char* const argv[]) odhcp6c_clear_state(STATE_IA_NA); odhcp6c_clear_state(STATE_IA_PD); odhcp6c_clear_state(STATE_SNTP_IP); - odhcp6c_clear_state(STATE_SNTP_FQDN); + odhcp6c_clear_state(STATE_NTP_IP); + odhcp6c_clear_state(STATE_NTP_FQDN); odhcp6c_clear_state(STATE_SIP_IP); odhcp6c_clear_state(STATE_SIP_FQDN); dhcpv6_set_ia_mode(ia_na_mode, ia_pd_mode); diff --git a/src/odhcp6c.h b/src/odhcp6c.h index d4458ff..e3c6c5e 100644 --- a/src/odhcp6c.h +++ b/src/odhcp6c.h @@ -49,6 +49,7 @@ enum dhcvp6_opt { DHCPV6_OPT_DNS_DOMAIN = 24, DHCPV6_OPT_IA_PD = 25, DHCPV6_OPT_IA_PREFIX = 26, + DHCPV6_OPT_SNTP_SERVERS = 31, DHCPV6_OPT_INFO_REFRESH = 32, DHCPV6_OPT_FQDN = 39, DHCPV6_OPT_NTP_SERVER = 56, @@ -193,7 +194,8 @@ enum odhcp6c_state { STATE_IA_PD, STATE_CUSTOM_OPTS, STATE_SNTP_IP, - STATE_SNTP_FQDN, + STATE_NTP_IP, + STATE_NTP_FQDN, STATE_SIP_IP, STATE_SIP_FQDN, STATE_RA_ROUTE, diff --git a/src/script.c b/src/script.c index e5b8341..5a021df 100644 --- a/src/script.c +++ b/src/script.c @@ -228,7 +228,7 @@ void script_delay_call(const char *status, int timeout) void script_call(const char *status) { - size_t dns_len, search_len, custom_len, sntp_ip_len, sntp_dns_len; + size_t dns_len, search_len, custom_len, sntp_ip_len, ntp_ip_len, ntp_dns_len; size_t sip_ip_len, sip_fqdn_len, aftr_name_len; odhcp6c_expire(); @@ -241,7 +241,8 @@ void script_call(const char *status) uint8_t *search = odhcp6c_get_state(STATE_SEARCH, &search_len); uint8_t *custom = odhcp6c_get_state(STATE_CUSTOM_OPTS, &custom_len); struct in6_addr *sntp = odhcp6c_get_state(STATE_SNTP_IP, &sntp_ip_len); - uint8_t *sntp_dns = odhcp6c_get_state(STATE_SNTP_FQDN, &sntp_dns_len); + struct in6_addr *ntp = odhcp6c_get_state(STATE_NTP_IP, &ntp_ip_len); + uint8_t *ntp_dns = odhcp6c_get_state(STATE_NTP_FQDN, &ntp_dns_len); struct in6_addr *sip = odhcp6c_get_state(STATE_SIP_IP, &sip_ip_len); uint8_t *sip_fqdn = odhcp6c_get_state(STATE_SIP_FQDN, &sip_fqdn_len); uint8_t *aftr_name = odhcp6c_get_state(STATE_AFTR_NAME, &aftr_name_len); @@ -257,9 +258,10 @@ void script_call(const char *status) if (fork() == 0) { ipv6_to_env("RDNSS", dns, dns_len / sizeof(*dns)); ipv6_to_env("SNTP_IP", sntp, sntp_ip_len / sizeof(*sntp)); + ipv6_to_env("NTP_IP", ntp, ntp_ip_len / sizeof(*ntp)); + fqdn_to_env("NTP_FQDN", ntp_dns, ntp_dns_len); ipv6_to_env("SIP_IP", sip, sip_ip_len / sizeof(*sip)); fqdn_to_env("DOMAINS", search, search_len); - fqdn_to_env("SNTP_FQDN", sntp_dns, sntp_dns_len); fqdn_to_env("SIP_DOMAIN", sip_fqdn, sip_fqdn_len); fqdn_to_env("AFTR", aftr_name, aftr_name_len); fqdn_to_ip_env("AFTR_IP", aftr_name, aftr_name_len); -- 2.39.2