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path: root/src/libsystemd-network/dhcp6-option.c
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Diffstat (limited to 'src/libsystemd-network/dhcp6-option.c')
-rw-r--r--src/libsystemd-network/dhcp6-option.c66
1 files changed, 36 insertions, 30 deletions
diff --git a/src/libsystemd-network/dhcp6-option.c b/src/libsystemd-network/dhcp6-option.c
index 48eef8950b..8a590b9c81 100644
--- a/src/libsystemd-network/dhcp6-option.c
+++ b/src/libsystemd-network/dhcp6-option.c
@@ -376,8 +376,7 @@ int dhcp6_option_parse_status(DHCP6Option *option, size_t len) {
return be16toh(statusopt->status);
}
-static int dhcp6_option_parse_address(DHCP6Option *option, DHCP6IA *ia,
- uint32_t *lifetime_valid) {
+static int dhcp6_option_parse_address(DHCP6Option *option, DHCP6IA *ia, uint32_t *ret_lifetime_valid) {
DHCP6AddressOption *addr_option = (DHCP6AddressOption *)option;
DHCP6Address *addr;
uint32_t lt_valid, lt_pref;
@@ -390,16 +389,22 @@ static int dhcp6_option_parse_address(DHCP6Option *option, DHCP6IA *ia,
lt_pref = be32toh(addr_option->iaaddr.lifetime_preferred);
if (lt_valid == 0 || lt_pref > lt_valid) {
- log_dhcp6_client(client, "Valid lifetime of an IA address is zero or preferred lifetime %d > valid lifetime %d",
+ log_dhcp6_client(client,
+ "Valid lifetime of an IA address is zero or "
+ "preferred lifetime %"PRIu32" > valid lifetime %"PRIu32,
lt_pref, lt_valid);
-
- return 0;
+ return -EINVAL;
}
if (be16toh(option->len) + offsetof(DHCP6Option, data) > sizeof(*addr_option)) {
r = dhcp6_option_parse_status((DHCP6Option *)addr_option->options, be16toh(option->len) + offsetof(DHCP6Option, data) - sizeof(*addr_option));
- if (r != 0)
- return r < 0 ? r: 0;
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ log_dhcp6_client(client, "Non-zero status code '%s' for address is received",
+ dhcp6_message_status_to_string(r));
+ return -EINVAL;
+ }
}
addr = new0(DHCP6Address, 1);
@@ -411,13 +416,12 @@ static int dhcp6_option_parse_address(DHCP6Option *option, DHCP6IA *ia,
LIST_PREPEND(addresses, ia->addresses, addr);
- *lifetime_valid = be32toh(addr->iaaddr.lifetime_valid);
+ *ret_lifetime_valid = be32toh(addr->iaaddr.lifetime_valid);
return 0;
}
-static int dhcp6_option_parse_pdprefix(DHCP6Option *option, DHCP6IA *ia,
- uint32_t *lifetime_valid) {
+static int dhcp6_option_parse_pdprefix(DHCP6Option *option, DHCP6IA *ia, uint32_t *ret_lifetime_valid) {
DHCP6PDPrefixOption *pdprefix_option = (DHCP6PDPrefixOption *)option;
DHCP6Address *prefix;
uint32_t lt_valid, lt_pref;
@@ -430,16 +434,22 @@ static int dhcp6_option_parse_pdprefix(DHCP6Option *option, DHCP6IA *ia,
lt_pref = be32toh(pdprefix_option->iapdprefix.lifetime_preferred);
if (lt_valid == 0 || lt_pref > lt_valid) {
- log_dhcp6_client(client, "Valid lifetieme of a PD prefix is zero or preferred lifetime %d > valid lifetime %d",
+ log_dhcp6_client(client,
+ "Valid lifetieme of a PD prefix is zero or "
+ "preferred lifetime %"PRIu32" > valid lifetime %"PRIu32,
lt_pref, lt_valid);
-
- return 0;
+ return -EINVAL;
}
if (be16toh(option->len) + offsetof(DHCP6Option, data) > sizeof(*pdprefix_option)) {
r = dhcp6_option_parse_status((DHCP6Option *)pdprefix_option->options, be16toh(option->len) + offsetof(DHCP6Option, data) - sizeof(*pdprefix_option));
- if (r != 0)
- return r < 0 ? r: 0;
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ log_dhcp6_client(client, "Non-zero status code '%s' for PD prefix is received",
+ dhcp6_message_status_to_string(r));
+ return -EINVAL;
+ }
}
prefix = new0(DHCP6Address, 1);
@@ -451,7 +461,7 @@ static int dhcp6_option_parse_pdprefix(DHCP6Option *option, DHCP6IA *ia,
LIST_PREPEND(addresses, ia->addresses, prefix);
- *lifetime_valid = be32toh(prefix->iapdprefix.lifetime_valid);
+ *ret_lifetime_valid = be32toh(prefix->iapdprefix.lifetime_valid);
return 0;
}
@@ -483,8 +493,7 @@ int dhcp6_option_parse_ia(DHCP6Option *iaoption, DHCP6IA *ia, uint16_t *ret_stat
lt_t2 = be32toh(ia->ia_na.lifetime_t2);
if (lt_t1 && lt_t2 && lt_t1 > lt_t2) {
- log_dhcp6_client(client, "IA NA T1 %ds > T2 %ds",
- lt_t1, lt_t2);
+ log_dhcp6_client(client, "IA NA T1 %"PRIu32"sec > T2 %"PRIu32"sec", lt_t1, lt_t2);
return -EINVAL;
}
@@ -502,8 +511,7 @@ int dhcp6_option_parse_ia(DHCP6Option *iaoption, DHCP6IA *ia, uint16_t *ret_stat
lt_t2 = be32toh(ia->ia_pd.lifetime_t2);
if (lt_t1 && lt_t2 && lt_t1 > lt_t2) {
- log_dhcp6_client(client, "IA PD T1 %ds > T2 %ds",
- lt_t1, lt_t2);
+ log_dhcp6_client(client, "IA PD T1 %"PRIu32"sec > T2 %"PRIu32"sec", lt_t1, lt_t2);
return -EINVAL;
}
@@ -543,10 +551,9 @@ int dhcp6_option_parse_ia(DHCP6Option *iaoption, DHCP6IA *ia, uint16_t *ret_stat
}
r = dhcp6_option_parse_address(option, ia, &lt_valid);
- if (r < 0)
+ if (r < 0 && r != -EINVAL)
return r;
-
- if (lt_valid < lt_min)
+ if (r >= 0 && lt_valid < lt_min)
lt_min = lt_valid;
break;
@@ -559,10 +566,9 @@ int dhcp6_option_parse_ia(DHCP6Option *iaoption, DHCP6IA *ia, uint16_t *ret_stat
}
r = dhcp6_option_parse_pdprefix(option, ia, &lt_valid);
- if (r < 0)
+ if (r < 0 && r != -EINVAL)
return r;
-
- if (lt_valid < lt_min)
+ if (r >= 0 && lt_valid < lt_min)
lt_min = lt_valid;
break;
@@ -595,26 +601,26 @@ int dhcp6_option_parse_ia(DHCP6Option *iaoption, DHCP6IA *ia, uint16_t *ret_stat
switch(iatype) {
case SD_DHCP6_OPTION_IA_NA:
- if (!ia->ia_na.lifetime_t1 && !ia->ia_na.lifetime_t2) {
+ if (!ia->ia_na.lifetime_t1 && !ia->ia_na.lifetime_t2 && lt_min != UINT32_MAX) {
lt_t1 = lt_min / 2;
lt_t2 = lt_min / 10 * 8;
ia->ia_na.lifetime_t1 = htobe32(lt_t1);
ia->ia_na.lifetime_t2 = htobe32(lt_t2);
- log_dhcp6_client(client, "Computed IA NA T1 %ds and T2 %ds as both were zero",
+ log_dhcp6_client(client, "Computed IA NA T1 %"PRIu32"sec and T2 %"PRIu32"sec as both were zero",
lt_t1, lt_t2);
}
break;
case SD_DHCP6_OPTION_IA_PD:
- if (!ia->ia_pd.lifetime_t1 && !ia->ia_pd.lifetime_t2) {
+ if (!ia->ia_pd.lifetime_t1 && !ia->ia_pd.lifetime_t2 && lt_min != UINT32_MAX) {
lt_t1 = lt_min / 2;
lt_t2 = lt_min / 10 * 8;
ia->ia_pd.lifetime_t1 = htobe32(lt_t1);
ia->ia_pd.lifetime_t2 = htobe32(lt_t2);
- log_dhcp6_client(client, "Computed IA PD T1 %ds and T2 %ds as both were zero",
+ log_dhcp6_client(client, "Computed IA PD T1 %"PRIu32"sec and T2 %"PRIu32"sec as both were zero",
lt_t1, lt_t2);
}
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