diff options
Diffstat (limited to 'epan/dissectors/packet-radius.c')
| -rw-r--r-- | epan/dissectors/packet-radius.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/epan/dissectors/packet-radius.c b/epan/dissectors/packet-radius.c index a61ba22009..aa902c55b4 100644 --- a/epan/dissectors/packet-radius.c +++ b/epan/dissectors/packet-radius.c @@ -495,6 +495,45 @@ static const gchar* dissect_cosine_vpvc(proto_tree* tree, tvbuff_t* tvb, packet_ return ep_strdup_printf("%u/%u",vpi,vci); } +static const value_string daylight_saving_time_vals[] = { + {0, "No adjustment"}, + {1, "+1 hour adjustment for Daylight Saving Time"}, + {2, "+2 hours adjustment for Daylight Saving Time"}, + {3, "Reserved"}, + {0, NULL} +}; + +static const gchar* +dissect_radius_3gpp_ms_tmime_zone(proto_tree* tree, tvbuff_t* tvb, packet_info* pinfo _U_) { + + int offset = 0; + guint8 oct, daylight_saving_time; + char sign; + + /* 3GPP TS 23.040 version 6.6.0 Release 6 + * 9.2.3.11 TP-Service-Centre-Time-Stamp (TP-SCTS) + * : + * The Time Zone indicates the difference, expressed in quarters of an hour, + * between the local time and GMT. In the first of the two semi-octets, + * the first bit (bit 3 of the seventh octet of the TP-Service-Centre-Time-Stamp field) + * represents the algebraic sign of this difference (0: positive, 1: negative). + */ + + oct = tvb_get_guint8(tvb, offset); + sign = (oct & 0x08) ? '-' : '+'; + oct = (oct >> 4) + (oct & 0x07) * 10; + + proto_tree_add_text(tree, tvb, offset, 1, "Timezone: GMT %c%d hours %d minutes", sign, oct / 4, oct % 4 * 15); + offset++; + + daylight_saving_time = tvb_get_guint8(tvb, offset) & 0x3; + proto_tree_add_text(tree, tvb, offset, 1, "%s", val_to_str_const(daylight_saving_time, daylight_saving_time_vals, "Unknown")); + + return ep_strdup_printf( "Timezone: GMT %c%d hours %d minutes %s ", + sign, oct / 4, oct % 4 * 15, val_to_str_const(daylight_saving_time, daylight_saving_time_vals, "Unknown")); + +} + static void radius_decrypt_avp(gchar *dest,int dest_len,tvbuff_t *tvb,int offset,int length) { @@ -2049,6 +2088,7 @@ static void register_radius_fields(const char* unused _U_) { * XXX - we should special-case Cisco attribute 252; see the comment in * dictionary.cisco. */ + radius_register_avp_dissector(VENDOR_THE3GPP,23,dissect_radius_3gpp_ms_tmime_zone); } |