diff options
Diffstat (limited to 'src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c')
| -rw-r--r-- | src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c index 62873e0111..a6b74e07b2 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c @@ -495,13 +495,18 @@ int dhcp6_option_parse( } int dhcp6_option_parse_status(const uint8_t *data, size_t data_len, char **ret_status_message) { + DHCP6Status status; + assert(data || data_len == 0); if (data_len < sizeof(uint16_t)) return -EBADMSG; + status = unaligned_read_be16(data); + if (ret_status_message) { - char *msg; + _cleanup_free_ char *msg = NULL; + const char *s; /* The status message MUST NOT be null-terminated. See section 21.13 of RFC8415. * Let's escape unsafe characters for safety. */ @@ -509,10 +514,14 @@ int dhcp6_option_parse_status(const uint8_t *data, size_t data_len, char **ret_s if (!msg) return -ENOMEM; - *ret_status_message = msg; + s = dhcp6_message_status_to_string(status); + if (s && !strextend_with_separator(&msg, ": ", s)) + return -ENOMEM; + + *ret_status_message = TAKE_PTR(msg); } - return unaligned_read_be16(data); + return status; } static int dhcp6_option_parse_ia_options(sd_dhcp6_client *client, const uint8_t *buf, size_t buflen) { @@ -538,9 +547,8 @@ static int dhcp6_option_parse_ia_options(sd_dhcp6_client *client, const uint8_t return r; if (r > 0) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), - "Received an IA address or PD prefix option with non-zero status: %s%s%s", - strempty(msg), isempty(msg) ? "" : ": ", - dhcp6_message_status_to_string(r)); + "Received an IA address or PD prefix option with non-zero status%s%s", + isempty(msg) ? "." : ": ", strempty(msg)); if (r < 0) /* Let's log but ignore the invalid status option. */ log_dhcp6_client_errno(client, r, @@ -746,9 +754,8 @@ int dhcp6_option_parse_ia( return r; if (r > 0) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), - "Received an IA option with non-zero status: %s%s%s", - strempty(msg), isempty(msg) ? "" : ": ", - dhcp6_message_status_to_string(r)); + "Received an IA option with non-zero status%s%s", + isempty(msg) ? "." : ": ", strempty(msg)); if (r < 0) log_dhcp6_client_errno(client, r, "Received an IA option with an invalid status sub option, ignoring: %m"); |