* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define IEEE802_11_BSSID_LEN 6
#define IEEE802_11_RA_LEN 6
#define IEEE802_11_TA_LEN 6
+#define IEEE802_11_ADDR1_LEN 6
#define IEEE802_11_SEQ_LEN 2
#define IEEE802_11_CTL_LEN 2
+#define IEEE802_11_CARRIED_FC_LEN 2
+#define IEEE802_11_HT_CONTROL_LEN 4
#define IEEE802_11_IV_LEN 3
#define IEEE802_11_KID_LEN 1
#define FC_RETRY(fc) ((fc) & 0x0800)
#define FC_POWER_MGMT(fc) ((fc) & 0x1000)
#define FC_MORE_DATA(fc) ((fc) & 0x2000)
-#define FC_WEP(fc) ((fc) & 0x4000)
+#define FC_PROTECTED(fc) ((fc) & 0x4000)
#define FC_ORDER(fc) ((fc) & 0x8000)
struct mgmt_header_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t da[6];
- u_int8_t sa[6];
- u_int8_t bssid[6];
- u_int16_t seq_ctrl;
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t da[IEEE802_11_DA_LEN];
+ uint8_t sa[IEEE802_11_SA_LEN];
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
+ uint16_t seq_ctrl;
};
#define MGMT_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
#define CAPABILITY_PRIVACY(cap) ((cap) & 0x0010)
struct ssid_t {
- u_int8_t element_id;
- u_int8_t length;
+ uint8_t element_id;
+ uint8_t length;
u_char ssid[33]; /* 32 + 1 for null */
};
struct rates_t {
- u_int8_t element_id;
- u_int8_t length;
- u_int8_t rate[16];
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t rate[16];
};
struct challenge_t {
- u_int8_t element_id;
- u_int8_t length;
- u_int8_t text[254]; /* 1-253 + 1 for null */
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t text[254]; /* 1-253 + 1 for null */
};
struct fh_t {
- u_int8_t element_id;
- u_int8_t length;
- u_int16_t dwell_time;
- u_int8_t hop_set;
- u_int8_t hop_pattern;
- u_int8_t hop_index;
+ uint8_t element_id;
+ uint8_t length;
+ uint16_t dwell_time;
+ uint8_t hop_set;
+ uint8_t hop_pattern;
+ uint8_t hop_index;
};
struct ds_t {
- u_int8_t element_id;
- u_int8_t length;
- u_int8_t channel;
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t channel;
};
struct cf_t {
- u_int8_t element_id;
- u_int8_t length;
- u_int8_t count;
- u_int8_t period;
- u_int16_t max_duration;
- u_int16_t dur_remaing;
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t count;
+ uint8_t period;
+ uint16_t max_duration;
+ uint16_t dur_remaing;
};
struct tim_t {
- u_int8_t element_id;
- u_int8_t length;
- u_int8_t count;
- u_int8_t period;
- u_int8_t bitmap_control;
- u_int8_t bitmap[251];
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t count;
+ uint8_t period;
+ uint8_t bitmap_control;
+ uint8_t bitmap[251];
};
#define E_SSID 0
struct mgmt_body_t {
- u_int8_t timestamp[IEEE802_11_TSTAMP_LEN];
- u_int16_t beacon_interval;
- u_int16_t listen_interval;
- u_int16_t status_code;
- u_int16_t aid;
+ uint8_t timestamp[IEEE802_11_TSTAMP_LEN];
+ uint16_t beacon_interval;
+ uint16_t listen_interval;
+ uint16_t status_code;
+ uint16_t aid;
u_char ap[IEEE802_11_AP_LEN];
- u_int16_t reason_code;
- u_int16_t auth_alg;
- u_int16_t auth_trans_seq_num;
+ uint16_t reason_code;
+ uint16_t auth_alg;
+ uint16_t auth_trans_seq_num;
int challenge_present;
struct challenge_t challenge;
- u_int16_t capability_info;
+ uint16_t capability_info;
int ssid_present;
struct ssid_t ssid;
int rates_present;
struct tim_t tim;
};
-struct ctrl_rts_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t ra[6];
- u_int8_t ta[6];
- u_int8_t fcs[4];
+struct ctrl_control_wrapper_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t addr1[IEEE802_11_ADDR1_LEN];
+ uint16_t carried_fc[IEEE802_11_CARRIED_FC_LEN];
+ uint16_t ht_control[IEEE802_11_HT_CONTROL_LEN];
+};
+
+#define CTRL_CONTROL_WRAPPER_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+ IEEE802_11_ADDR1_LEN+\
+ IEEE802_11_CARRIED_FC_LEN+\
+ IEEE802_11_HT_CONTROL_LEN)
+
+struct ctrl_rts_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t ta[IEEE802_11_TA_LEN];
};
#define CTRL_RTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
IEEE802_11_RA_LEN+IEEE802_11_TA_LEN)
-struct ctrl_cts_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t ra[6];
- u_int8_t fcs[4];
+struct ctrl_cts_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
};
#define CTRL_CTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
-struct ctrl_ack_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t ra[6];
- u_int8_t fcs[4];
+struct ctrl_ack_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
};
#define CTRL_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
-struct ctrl_ps_poll_t {
- u_int16_t fc;
- u_int16_t aid;
- u_int8_t bssid[6];
- u_int8_t ta[6];
- u_int8_t fcs[4];
+struct ctrl_ps_poll_hdr_t {
+ uint16_t fc;
+ uint16_t aid;
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
+ uint8_t ta[IEEE802_11_TA_LEN];
};
#define CTRL_PS_POLL_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_AID_LEN+\
IEEE802_11_BSSID_LEN+IEEE802_11_TA_LEN)
-struct ctrl_end_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t ra[6];
- u_int8_t bssid[6];
- u_int8_t fcs[4];
+struct ctrl_end_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
};
#define CTRL_END_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN)
-struct ctrl_end_ack_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t ra[6];
- u_int8_t bssid[6];
- u_int8_t fcs[4];
+struct ctrl_end_ack_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
};
#define CTRL_END_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN)
-struct ctrl_ba_t {
- u_int16_t fc;
- u_int16_t duration;
- u_int8_t ra[6];
- u_int8_t fcs[4];
+struct ctrl_ba_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
};
#define CTRL_BA_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
-struct ctrl_bar_t {
- u_int16_t fc;
- u_int16_t dur;
- u_int8_t ra[6];
- u_int8_t ta[6];
- u_int16_t ctl;
- u_int16_t seq;
- u_int8_t fcs[4];
+struct ctrl_bar_hdr_t {
+ uint16_t fc;
+ uint16_t dur;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t ta[IEEE802_11_TA_LEN];
+ uint16_t ctl;
+ uint16_t seq;
};
#define CTRL_BAR_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
IEEE802_11_CTL_LEN+IEEE802_11_SEQ_LEN)
struct meshcntl_t {
- u_int8_t flags;
- u_int8_t ttl;
- u_int8_t seq[4];
- u_int8_t addr4[6];
- u_int8_t addr5[6];
- u_int8_t addr6[6];
+ uint8_t flags;
+ uint8_t ttl;
+ uint8_t seq[4];
+ uint8_t addr4[6];
+ uint8_t addr5[6];
+ uint8_t addr6[6];
};
#define IV_IV(iv) ((iv) & 0xFFFFFF)
* Note well: all radiotap fields are little-endian.
*/
struct ieee80211_radiotap_header {
- u_int8_t it_version; /* Version 0. Only increases
+ uint8_t it_version; /* Version 0. Only increases
* for drastic changes,
* introduction of compatible
* new fields does not count.
*/
- u_int8_t it_pad;
- u_int16_t it_len; /* length of the whole
+ uint8_t it_pad;
+ uint16_t it_len; /* length of the whole
* header in bytes, including
* it_version, it_pad,
* it_len, and data fields.
*/
- u_int32_t it_present; /* A bitmap telling which
+ uint32_t it_present; /* A bitmap telling which
* fields are present. Set bit 31
* (0x80000000) to extend the
* bitmap by another 32 bits.
/* Name Data type Units
* ---- --------- -----
*
- * IEEE80211_RADIOTAP_TSFT u_int64_t microseconds
+ * IEEE80211_RADIOTAP_TSFT uint64_t microseconds
*
* Value in microseconds of the MAC's 64-bit 802.11 Time
* Synchronization Function timer when the first bit of the
* MPDU arrived at the MAC. For received frames, only.
*
- * IEEE80211_RADIOTAP_CHANNEL 2 x u_int16_t MHz, bitmap
+ * IEEE80211_RADIOTAP_CHANNEL 2 x uint16_t MHz, bitmap
*
* Tx/Rx frequency in MHz, followed by flags (see below).
* Note that IEEE80211_RADIOTAP_XCHANNEL must be used to
* represent an HT channel as there is not enough room in
* the flags word.
*
- * IEEE80211_RADIOTAP_FHSS u_int16_t see below
+ * IEEE80211_RADIOTAP_FHSS uint16_t see below
*
* For frequency-hopping radios, the hop set (first byte)
* and pattern (second byte).
*
- * IEEE80211_RADIOTAP_RATE u_int8_t 500kb/s or index
+ * IEEE80211_RADIOTAP_RATE uint8_t 500kb/s or index
*
* Tx/Rx data rate. If bit 0x80 is set then it represents an
* an MCS index and not an IEEE rate.
* RF noise power at the antenna, decibel difference from one
* milliwatt.
*
- * IEEE80211_RADIOTAP_DB_ANTSIGNAL u_int8_t decibel (dB)
+ * IEEE80211_RADIOTAP_DB_ANTSIGNAL uint8_t decibel (dB)
*
* RF signal power at the antenna, decibel difference from an
* arbitrary, fixed reference.
*
- * IEEE80211_RADIOTAP_DB_ANTNOISE u_int8_t decibel (dB)
+ * IEEE80211_RADIOTAP_DB_ANTNOISE uint8_t decibel (dB)
*
* RF noise power at the antenna, decibel difference from an
* arbitrary, fixed reference point.
*
- * IEEE80211_RADIOTAP_LOCK_QUALITY u_int16_t unitless
+ * IEEE80211_RADIOTAP_LOCK_QUALITY uint16_t unitless
*
* Quality of Barker code lock. Unitless. Monotonically
* nondecreasing with "better" lock strength. Called "Signal
* Quality" in datasheets. (Is there a standard way to measure
* this?)
*
- * IEEE80211_RADIOTAP_TX_ATTENUATION u_int16_t unitless
+ * IEEE80211_RADIOTAP_TX_ATTENUATION uint16_t unitless
*
* Transmit power expressed as unitless distance from max
* power set at factory calibration. 0 is max power.
* Monotonically nondecreasing with lower power levels.
*
- * IEEE80211_RADIOTAP_DB_TX_ATTENUATION u_int16_t decibels (dB)
+ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION uint16_t decibels (dB)
*
* Transmit power expressed as decibel distance from max power
* set at factory calibration. 0 is max power. Monotonically
* reference). This is the absolute power level measured at
* the antenna port.
*
- * IEEE80211_RADIOTAP_FLAGS u_int8_t bitmap
+ * IEEE80211_RADIOTAP_FLAGS uint8_t bitmap
*
* Properties of transmitted and received frames. See flags
* defined below.
*
- * IEEE80211_RADIOTAP_ANTENNA u_int8_t antenna index
+ * IEEE80211_RADIOTAP_ANTENNA uint8_t antenna index
*
* Unitless indication of the Rx/Tx antenna for this packet.
* The first antenna is antenna 0.
*
- * IEEE80211_RADIOTAP_RX_FLAGS u_int16_t bitmap
+ * IEEE80211_RADIOTAP_RX_FLAGS uint16_t bitmap
*
* Properties of received frames. See flags defined below.
*
- * IEEE80211_RADIOTAP_XCHANNEL u_int32_t bitmap
- * u_int16_t MHz
- * u_int8_t channel number
- * u_int8_t .5 dBm
+ * IEEE80211_RADIOTAP_XCHANNEL uint32_t bitmap
+ * uint16_t MHz
+ * uint8_t channel number
+ * uint8_t .5 dBm
*
* Extended channel specification: flags (see below) followed by
* frequency in MHz, the corresponding IEEE channel number, and
* units. This property supersedes IEEE80211_RADIOTAP_CHANNEL
* and only one of the two should be present.
*
- * IEEE80211_RADIOTAP_MCS u_int8_t known
- * u_int8_t flags
- * u_int8_t mcs
+ * IEEE80211_RADIOTAP_MCS uint8_t known
+ * uint8_t flags
+ * uint8_t mcs
*
* Bitset indicating which fields have known values, followed
* by bitset of flag values, followed by the MCS rate index as
* in IEEE 802.11n.
*
* IEEE80211_RADIOTAP_VENDOR_NAMESPACE
- * u_int8_t OUI[3]
- * u_int8_t subspace
- * u_int16_t length
+ * uint8_t OUI[3]
+ * uint8_t subspace
+ * uint16_t length
*
* The Vendor Namespace Field contains three sub-fields. The first
* sub-field is 3 bytes long. It contains the vendor's IEEE 802
/* This is used to save state when parsing/processing parameters */
struct radiotap_state
{
- u_int32_t present;
+ uint32_t present;
- u_int8_t rate;
+ uint8_t rate;
};
#define PRINT_SSID(p) \
"The request has not been successful as one or more parameters "
"have invalid values", /* 38 */
"The TS has not been created because the request cannot be honored. "
- "However, a suggested TSPEC is provided so that the initiating QSTA"
- "may attempt to set another TS with the suggested changes to the "
- "TSPEC", /* 39 */
+ "Try again with the suggested changes to the TSPEC", /* 39 */
"Invalid Information Element", /* 40 */
"Group Cipher is not valid", /* 41 */
"Pairwise Cipher is not valid", /* 42 */
wep_print(netdissect_options *ndo,
const u_char *p)
{
- u_int32_t iv;
+ uint32_t iv;
if (!ND_TTEST2(*p, IEEE802_11_IV_LEN + IEEE802_11_KID_LEN))
return 0;
iv = EXTRACT_LE_32BITS(p);
- ND_PRINT((ndo, "Data IV:%3x Pad %x KeyID %x", IV_IV(iv), IV_PAD(iv),
+ ND_PRINT((ndo, " IV:%3x Pad %x KeyID %x", IV_IV(iv), IV_PAD(iv),
IV_KEYID(iv)));
return 1;
pbody->tim_present = 0;
while (length != 0) {
- if (!ND_TTEST2(*(p + offset), 1))
+ /* Make sure we at least have the element ID and length. */
+ if (!ND_TTEST2(*(p + offset), 2))
return 0;
- if (length < 1)
+ if (length < 2)
return 0;
+ elementlen = *(p + offset + 1);
+
+ /* Make sure we have the entire element. */
+ if (!ND_TTEST2(*(p + offset + 2), elementlen))
+ return 0;
+ if (length < elementlen + 2)
+ return 0;
+
switch (*(p + offset)) {
case E_SSID:
- if (!ND_TTEST2(*(p + offset), 2))
- return 0;
- if (length < 2)
- return 0;
memcpy(&ssid, p + offset, 2);
offset += 2;
length -= 2;
}
break;
case E_CHALLENGE:
- if (!ND_TTEST2(*(p + offset), 2))
- return 0;
- if (length < 2)
- return 0;
memcpy(&challenge, p + offset, 2);
offset += 2;
length -= 2;
}
break;
case E_RATES:
- if (!ND_TTEST2(*(p + offset), 2))
- return 0;
- if (length < 2)
- return 0;
memcpy(&rates, p + offset, 2);
offset += 2;
length -= 2;
}
break;
case E_DS:
- if (!ND_TTEST2(*(p + offset), 3))
- return 0;
- if (length < 3)
- return 0;
- memcpy(&ds, p + offset, 3);
- offset += 3;
- length -= 3;
+ memcpy(&ds, p + offset, 2);
+ offset += 2;
+ length -= 2;
+ if (ds.length != 1) {
+ offset += ds.length;
+ length -= ds.length;
+ break;
+ }
+ ds.channel = *(p + offset);
+ offset += 1;
+ length -= 1;
/*
* Present and not truncated.
*
}
break;
case E_CF:
- if (!ND_TTEST2(*(p + offset), 8))
- return 0;
- if (length < 8)
- return 0;
- memcpy(&cf, p + offset, 8);
- offset += 8;
- length -= 8;
+ memcpy(&cf, p + offset, 2);
+ offset += 2;
+ length -= 2;
+ if (cf.length != 6) {
+ offset += cf.length;
+ length -= cf.length;
+ break;
+ }
+ memcpy(&cf.count, p + offset, 6);
+ offset += 6;
+ length -= 6;
/*
* Present and not truncated.
*
}
break;
case E_TIM:
- if (!ND_TTEST2(*(p + offset), 2))
- return 0;
- if (length < 2)
- return 0;
memcpy(&tim, p + offset, 2);
offset += 2;
length -= 2;
- if (!ND_TTEST2(*(p + offset), 3))
- return 0;
- if (length < 3)
+ if (tim.length <= 3) {
+ offset += tim.length;
+ length -= tim.length;
+ break;
+ }
+ if (tim.length - 3 > (int)sizeof tim.bitmap)
return 0;
memcpy(&tim.count, p + offset, 3);
offset += 3;
length -= 3;
- if (tim.length <= 3)
- break;
- if (tim.length - 3 > (int)sizeof tim.bitmap)
- return 0;
- if (!ND_TTEST2(*(p + offset), tim.length - 3))
- return 0;
- if (length < (u_int)(tim.length - 3))
- return 0;
memcpy(tim.bitmap, p + (tim.length - 3),
(tim.length - 3));
offset += tim.length - 3;
ND_PRINT((ndo, "(1) unhandled element_id (%d) ",
*(p + offset)));
#endif
- if (!ND_TTEST2(*(p + offset), 2))
- return 0;
- if (length < 2)
- return 0;
- elementlen = *(p + offset + 1);
- if (!ND_TTEST2(*(p + offset + 2), elementlen))
- return 0;
- if (length < elementlen + 2)
- return 0;
- offset += elementlen + 2;
- length -= elementlen + 2;
+ offset += 2 + elementlen;
+ length -= 2 + elementlen;
break;
}
}
ret = parse_elements(ndo, &pbody, p, offset, length);
- ND_PRINT((ndo, " AID(%x) :%s: %s", ((u_int16_t)(pbody.aid << 2 )) >> 2 ,
+ ND_PRINT((ndo, " AID(%x) :%s: %s", ((uint16_t)(pbody.aid << 2 )) >> 2 ,
CAPABILITY_PRIVACY(pbody.capability_info) ? " PRIVACY " : "",
(pbody.status_code < NUM_STATUSES
? status_text[pbody.status_code]
static int
handle_deauth(netdissect_options *ndo,
- const struct mgmt_header_t *pmh, const u_char *p, u_int length)
+ const uint8_t *src, const u_char *p, u_int length)
{
struct mgmt_body_t pbody;
const char *reason = NULL;
if (ndo->ndo_eflag) {
ND_PRINT((ndo, ": %s", reason));
} else {
- ND_PRINT((ndo, " (%s): %s", etheraddr_string(ndo, pmh->sa), reason));
+ ND_PRINT((ndo, " (%s): %s", etheraddr_string(ndo, src), reason));
}
return 1;
}
static int
handle_action(netdissect_options *ndo,
- const struct mgmt_header_t *pmh, const u_char *p, u_int length)
+ const uint8_t *src, const u_char *p, u_int length)
{
if (!ND_TTEST2(*p, 2))
return 0;
if (ndo->ndo_eflag) {
ND_PRINT((ndo, ": "));
} else {
- ND_PRINT((ndo, " (%s): ", etheraddr_string(ndo, pmh->sa)));
+ ND_PRINT((ndo, " (%s): ", etheraddr_string(ndo, src)));
}
switch (p[0]) {
case 0: ND_PRINT((ndo, "Spectrum Management Act#%d", p[1])); break;
static int
mgmt_body_print(netdissect_options *ndo,
- u_int16_t fc, const struct mgmt_header_t *pmh,
- const u_char *p, u_int length)
+ uint16_t fc, const uint8_t *src, const u_char *p, u_int length)
{
ND_PRINT((ndo, "%s", tok2str(st_str, "Unhandled Management subtype(%x)", FC_SUBTYPE(fc))));
+
+ /* There may be a problem w/ AP not having this bit set */
+ if (FC_PROTECTED(fc))
+ return wep_print(ndo, p);
switch (FC_SUBTYPE(fc)) {
case ST_ASSOC_REQUEST:
return handle_assoc_request(ndo, p, length);
case ST_DISASSOC:
return handle_disassoc(ndo, p, length);
case ST_AUTH:
- if (!ND_TTEST2(*p, 3))
- return 0;
- if ((p[0] == 0 ) && (p[1] == 0) && (p[2] == 0)) {
- ND_PRINT((ndo, "Authentication (Shared-Key)-3 "));
- return wep_print(ndo, p);
- }
return handle_auth(ndo, p, length);
case ST_DEAUTH:
- return handle_deauth(ndo, pmh, p, length);
+ return handle_deauth(ndo, src, p, length);
case ST_ACTION:
- return handle_action(ndo, pmh, p, length);
+ return handle_action(ndo, src, p, length);
default:
return 1;
}
static int
ctrl_body_print(netdissect_options *ndo,
- u_int16_t fc, const u_char *p)
+ uint16_t fc, const u_char *p)
{
ND_PRINT((ndo, "%s", tok2str(ctrl_str, "Unknown Ctrl Subtype", FC_SUBTYPE(fc))));
switch (FC_SUBTYPE(fc)) {
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " RA:%s TA:%s CTL(%x) SEQ(%u) ",
- etheraddr_string(ndo, ((const struct ctrl_bar_t *)p)->ra),
- etheraddr_string(ndo, ((const struct ctrl_bar_t *)p)->ta),
- EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->ctl)),
- EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->seq))));
+ etheraddr_string(ndo, ((const struct ctrl_bar_hdr_t *)p)->ra),
+ etheraddr_string(ndo, ((const struct ctrl_bar_hdr_t *)p)->ta),
+ EXTRACT_LE_16BITS(&(((const struct ctrl_bar_hdr_t *)p)->ctl)),
+ EXTRACT_LE_16BITS(&(((const struct ctrl_bar_hdr_t *)p)->seq))));
break;
case CTRL_BA:
if (!ND_TTEST2(*p, CTRL_BA_HDRLEN))
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_ba_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_ba_hdr_t *)p)->ra)));
break;
case CTRL_PS_POLL:
if (!ND_TTEST2(*p, CTRL_PS_POLL_HDRLEN))
return 0;
ND_PRINT((ndo, " AID(%x)",
- EXTRACT_LE_16BITS(&(((const struct ctrl_ps_poll_t *)p)->aid))));
+ EXTRACT_LE_16BITS(&(((const struct ctrl_ps_poll_hdr_t *)p)->aid))));
break;
case CTRL_RTS:
if (!ND_TTEST2(*p, CTRL_RTS_HDRLEN))
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " TA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_rts_t *)p)->ta)));
+ etheraddr_string(ndo, ((const struct ctrl_rts_hdr_t *)p)->ta)));
break;
case CTRL_CTS:
if (!ND_TTEST2(*p, CTRL_CTS_HDRLEN))
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_cts_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_cts_hdr_t *)p)->ra)));
break;
case CTRL_ACK:
if (!ND_TTEST2(*p, CTRL_ACK_HDRLEN))
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_ack_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_ack_hdr_t *)p)->ra)));
break;
case CTRL_CF_END:
if (!ND_TTEST2(*p, CTRL_END_HDRLEN))
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_end_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_end_hdr_t *)p)->ra)));
break;
case CTRL_END_ACK:
if (!ND_TTEST2(*p, CTRL_END_ACK_HDRLEN))
return 0;
if (!ndo->ndo_eflag)
ND_PRINT((ndo, " RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_end_ack_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_end_ack_hdr_t *)p)->ra)));
break;
}
return 1;
}
-/*
- * Print Header funcs
- */
-
/*
* Data Frame - Address field contents
*
* 1 | 1 | RA | TA | DA | SA
*/
+/*
+ * Function to get source and destination MAC addresses for a data frame.
+ */
static void
-data_header_print(netdissect_options *ndo,
- u_int16_t fc, const u_char *p, const u_int8_t **srcp,
- const u_int8_t **dstp)
+get_data_src_dst_mac(uint16_t fc, const u_char *p, const uint8_t **srcp,
+ const uint8_t **dstp)
+{
+#define ADDR1 (p + 4)
+#define ADDR2 (p + 10)
+#define ADDR3 (p + 16)
+#define ADDR4 (p + 24)
+
+ if (!FC_TO_DS(fc) && !FC_FROM_DS(fc)) {
+ *srcp = ADDR2;
+ *dstp = ADDR1;
+ } else if (!FC_TO_DS(fc) && FC_FROM_DS(fc)) {
+ *srcp = ADDR3;
+ *dstp = ADDR1;
+ } else if (FC_TO_DS(fc) && !FC_FROM_DS(fc)) {
+ *srcp = ADDR2;
+ *dstp = ADDR3;
+ } else if (FC_TO_DS(fc) && FC_FROM_DS(fc)) {
+ *srcp = ADDR4;
+ *dstp = ADDR3;
+ }
+
+#undef ADDR1
+#undef ADDR2
+#undef ADDR3
+#undef ADDR4
+}
+
+static void
+get_mgmt_src_dst_mac(const u_char *p, const uint8_t **srcp, const uint8_t **dstp)
+{
+ const struct mgmt_header_t *hp = (const struct mgmt_header_t *) p;
+
+ if (srcp != NULL)
+ *srcp = hp->sa;
+ if (dstp != NULL)
+ *dstp = hp->da;
+}
+
+/*
+ * Print Header funcs
+ */
+
+static void
+data_header_print(netdissect_options *ndo, uint16_t fc, const u_char *p)
{
u_int subtype = FC_SUBTYPE(fc);
#define ADDR4 (p + 24)
if (!FC_TO_DS(fc) && !FC_FROM_DS(fc)) {
- if (srcp != NULL)
- *srcp = ADDR2;
- if (dstp != NULL)
- *dstp = ADDR1;
- if (!ndo->ndo_eflag)
- return;
ND_PRINT((ndo, "DA:%s SA:%s BSSID:%s ",
etheraddr_string(ndo, ADDR1), etheraddr_string(ndo, ADDR2),
etheraddr_string(ndo, ADDR3)));
} else if (!FC_TO_DS(fc) && FC_FROM_DS(fc)) {
- if (srcp != NULL)
- *srcp = ADDR3;
- if (dstp != NULL)
- *dstp = ADDR1;
- if (!ndo->ndo_eflag)
- return;
ND_PRINT((ndo, "DA:%s BSSID:%s SA:%s ",
etheraddr_string(ndo, ADDR1), etheraddr_string(ndo, ADDR2),
etheraddr_string(ndo, ADDR3)));
} else if (FC_TO_DS(fc) && !FC_FROM_DS(fc)) {
- if (srcp != NULL)
- *srcp = ADDR2;
- if (dstp != NULL)
- *dstp = ADDR3;
- if (!ndo->ndo_eflag)
- return;
ND_PRINT((ndo, "BSSID:%s SA:%s DA:%s ",
etheraddr_string(ndo, ADDR1), etheraddr_string(ndo, ADDR2),
etheraddr_string(ndo, ADDR3)));
} else if (FC_TO_DS(fc) && FC_FROM_DS(fc)) {
- if (srcp != NULL)
- *srcp = ADDR4;
- if (dstp != NULL)
- *dstp = ADDR3;
- if (!ndo->ndo_eflag)
- return;
ND_PRINT((ndo, "RA:%s TA:%s DA:%s SA:%s ",
etheraddr_string(ndo, ADDR1), etheraddr_string(ndo, ADDR2),
etheraddr_string(ndo, ADDR3), etheraddr_string(ndo, ADDR4)));
}
static void
-mgmt_header_print(netdissect_options *ndo,
- const u_char *p, const u_int8_t **srcp, const u_int8_t **dstp)
+mgmt_header_print(netdissect_options *ndo, const u_char *p)
{
const struct mgmt_header_t *hp = (const struct mgmt_header_t *) p;
- if (srcp != NULL)
- *srcp = hp->sa;
- if (dstp != NULL)
- *dstp = hp->da;
- if (!ndo->ndo_eflag)
- return;
-
ND_PRINT((ndo, "BSSID:%s DA:%s SA:%s ",
etheraddr_string(ndo, (hp)->bssid), etheraddr_string(ndo, (hp)->da),
etheraddr_string(ndo, (hp)->sa)));
}
static void
-ctrl_header_print(netdissect_options *ndo,
- u_int16_t fc, const u_char *p, const u_int8_t **srcp,
- const u_int8_t **dstp)
+ctrl_header_print(netdissect_options *ndo, uint16_t fc, const u_char *p)
{
- if (srcp != NULL)
- *srcp = NULL;
- if (dstp != NULL)
- *dstp = NULL;
- if (!ndo->ndo_eflag)
- return;
-
switch (FC_SUBTYPE(fc)) {
case CTRL_BAR:
ND_PRINT((ndo, " RA:%s TA:%s CTL(%x) SEQ(%u) ",
- etheraddr_string(ndo, ((const struct ctrl_bar_t *)p)->ra),
- etheraddr_string(ndo, ((const struct ctrl_bar_t *)p)->ta),
- EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->ctl)),
- EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->seq))));
+ etheraddr_string(ndo, ((const struct ctrl_bar_hdr_t *)p)->ra),
+ etheraddr_string(ndo, ((const struct ctrl_bar_hdr_t *)p)->ta),
+ EXTRACT_LE_16BITS(&(((const struct ctrl_bar_hdr_t *)p)->ctl)),
+ EXTRACT_LE_16BITS(&(((const struct ctrl_bar_hdr_t *)p)->seq))));
break;
case CTRL_BA:
ND_PRINT((ndo, "RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_ba_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_ba_hdr_t *)p)->ra)));
break;
case CTRL_PS_POLL:
ND_PRINT((ndo, "BSSID:%s TA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_ps_poll_t *)p)->bssid),
- etheraddr_string(ndo, ((const struct ctrl_ps_poll_t *)p)->ta)));
+ etheraddr_string(ndo, ((const struct ctrl_ps_poll_hdr_t *)p)->bssid),
+ etheraddr_string(ndo, ((const struct ctrl_ps_poll_hdr_t *)p)->ta)));
break;
case CTRL_RTS:
ND_PRINT((ndo, "RA:%s TA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_rts_t *)p)->ra),
- etheraddr_string(ndo, ((const struct ctrl_rts_t *)p)->ta)));
+ etheraddr_string(ndo, ((const struct ctrl_rts_hdr_t *)p)->ra),
+ etheraddr_string(ndo, ((const struct ctrl_rts_hdr_t *)p)->ta)));
break;
case CTRL_CTS:
ND_PRINT((ndo, "RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_cts_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_cts_hdr_t *)p)->ra)));
break;
case CTRL_ACK:
ND_PRINT((ndo, "RA:%s ",
- etheraddr_string(ndo, ((const struct ctrl_ack_t *)p)->ra)));
+ etheraddr_string(ndo, ((const struct ctrl_ack_hdr_t *)p)->ra)));
break;
case CTRL_CF_END:
ND_PRINT((ndo, "RA:%s BSSID:%s ",
- etheraddr_string(ndo, ((const struct ctrl_end_t *)p)->ra),
- etheraddr_string(ndo, ((const struct ctrl_end_t *)p)->bssid)));
+ etheraddr_string(ndo, ((const struct ctrl_end_hdr_t *)p)->ra),
+ etheraddr_string(ndo, ((const struct ctrl_end_hdr_t *)p)->bssid)));
break;
case CTRL_END_ACK:
ND_PRINT((ndo, "RA:%s BSSID:%s ",
- etheraddr_string(ndo, ((const struct ctrl_end_ack_t *)p)->ra),
- etheraddr_string(ndo, ((const struct ctrl_end_ack_t *)p)->bssid)));
+ etheraddr_string(ndo, ((const struct ctrl_end_ack_hdr_t *)p)->ra),
+ etheraddr_string(ndo, ((const struct ctrl_end_ack_hdr_t *)p)->bssid)));
break;
default:
- ND_PRINT((ndo, "(H) Unknown Ctrl Subtype"));
+ /* We shouldn't get here - we should already have quit */
break;
}
}
static int
extract_header_length(netdissect_options *ndo,
- u_int16_t fc)
+ uint16_t fc)
{
int len;
return MGMT_HDRLEN;
case T_CTRL:
switch (FC_SUBTYPE(fc)) {
+ case CTRL_CONTROL_WRAPPER:
+ return CTRL_CONTROL_WRAPPER_HDRLEN;
case CTRL_BAR:
return CTRL_BAR_HDRLEN;
+ case CTRL_BA:
+ return CTRL_BA_HDRLEN;
case CTRL_PS_POLL:
return CTRL_PS_POLL_HDRLEN;
case CTRL_RTS:
case CTRL_END_ACK:
return CTRL_END_ACK_HDRLEN;
default:
+ ND_PRINT((ndo, "unknown 802.11 ctrl frame subtype (%d)", FC_SUBTYPE(fc)));
return 0;
}
case T_DATA:
len += 2;
return len;
default:
- ND_PRINT((ndo, "unknown IEEE802.11 frame type (%d)", FC_TYPE(fc)));
+ ND_PRINT((ndo, "unknown 802.11 frame type (%d)", FC_TYPE(fc)));
return 0;
}
}
}
/*
- * Print the 802.11 MAC header if eflag is set, and set "*srcp" and "*dstp"
- * to point to the source and destination MAC addresses in any case if
- * "srcp" and "dstp" aren't null.
+ * Print the 802.11 MAC header.
*/
static void
ieee_802_11_hdr_print(netdissect_options *ndo,
- u_int16_t fc, const u_char *p, u_int hdrlen,
- u_int meshdrlen, const u_int8_t **srcp,
- const u_int8_t **dstp)
+ uint16_t fc, const u_char *p, u_int hdrlen,
+ u_int meshdrlen)
{
if (ndo->ndo_vflag) {
if (FC_MORE_DATA(fc))
ND_PRINT((ndo, "Retry "));
if (FC_ORDER(fc))
ND_PRINT((ndo, "Strictly Ordered "));
- if (FC_WEP(fc))
- ND_PRINT((ndo, "WEP Encrypted "));
+ if (FC_PROTECTED(fc))
+ ND_PRINT((ndo, "Protected "));
if (FC_TYPE(fc) != T_CTRL || FC_SUBTYPE(fc) != CTRL_PS_POLL)
ND_PRINT((ndo, "%dus ",
EXTRACT_LE_16BITS(
switch (FC_TYPE(fc)) {
case T_MGMT:
- mgmt_header_print(ndo, p, srcp, dstp);
+ mgmt_header_print(ndo, p);
break;
case T_CTRL:
- ctrl_header_print(ndo, fc, p, srcp, dstp);
+ ctrl_header_print(ndo, fc, p);
break;
case T_DATA:
- data_header_print(ndo, fc, p, srcp, dstp);
+ data_header_print(ndo, fc, p);
break;
default:
- ND_PRINT((ndo, "(header) unknown IEEE802.11 frame type (%d)",
- FC_TYPE(fc)));
- *srcp = NULL;
- *dstp = NULL;
break;
}
}
const u_char *p, u_int length, u_int orig_caplen, int pad,
u_int fcslen)
{
- u_int16_t fc;
+ uint16_t fc;
u_int caplen, hdrlen, meshdrlen;
- const u_int8_t *src, *dst;
- u_short extracted_ethertype;
+ const uint8_t *src, *dst;
+ int llc_hdrlen;
caplen = orig_caplen;
/* Remove FCS, if present */
fc = EXTRACT_LE_16BITS(p);
hdrlen = extract_header_length(ndo, fc);
+ if (hdrlen == 0) {
+ /* Unknown frame type or control frame subtype; quit. */
+ return (0);
+ }
if (pad)
hdrlen = roundup2(hdrlen, 4);
if (ndo->ndo_Hflag && FC_TYPE(fc) == T_DATA &&
} else
meshdrlen = 0;
-
if (caplen < hdrlen) {
ND_PRINT((ndo, "%s", tstr));
return hdrlen;
}
- ieee_802_11_hdr_print(ndo, fc, p, hdrlen, meshdrlen, &src, &dst);
+ if (ndo->ndo_eflag)
+ ieee_802_11_hdr_print(ndo, fc, p, hdrlen, meshdrlen);
/*
* Go past the 802.11 header.
switch (FC_TYPE(fc)) {
case T_MGMT:
- if (!mgmt_body_print(ndo, fc,
- (const struct mgmt_header_t *)(p - hdrlen), p, length)) {
+ get_mgmt_src_dst_mac(p - hdrlen, &src, &dst);
+ if (!mgmt_body_print(ndo, fc, src, p, length)) {
ND_PRINT((ndo, "%s", tstr));
return hdrlen;
}
if (DATA_FRAME_IS_NULL(FC_SUBTYPE(fc)))
return hdrlen; /* no-data frame */
/* There may be a problem w/ AP not having this bit set */
- if (FC_WEP(fc)) {
+ if (FC_PROTECTED(fc)) {
+ ND_PRINT((ndo, "Data"));
if (!wep_print(ndo, p)) {
ND_PRINT((ndo, "%s", tstr));
return hdrlen;
}
- } else if (llc_print(ndo, p, length, caplen, dst, src,
- &extracted_ethertype) == 0) {
- /*
- * Some kinds of LLC packet we cannot
- * handle intelligently
- */
- if (!ndo->ndo_eflag)
- ieee_802_11_hdr_print(ndo, fc, p - hdrlen, hdrlen,
- meshdrlen, NULL, NULL);
- if (extracted_ethertype)
- ND_PRINT((ndo, "(LLC %s) ",
- etherproto_string(
- htons(extracted_ethertype))));
- if (!ndo->ndo_suppress_default_print)
- ND_DEFAULTPRINT(p, caplen);
+ } else {
+ get_data_src_dst_mac(fc, p - hdrlen, &src, &dst);
+ llc_hdrlen = llc_print(ndo, p, length, caplen, dst, src);
+ if (llc_hdrlen < 0) {
+ /*
+ * Some kinds of LLC packet we cannot
+ * handle intelligently
+ */
+ if (!ndo->ndo_suppress_default_print)
+ ND_DEFAULTPRINT(p, caplen);
+ llc_hdrlen = -llc_hdrlen;
+ }
+ hdrlen += llc_hdrlen;
}
break;
default:
- ND_PRINT((ndo, "unknown 802.11 frame type (%d)", FC_TYPE(fc)));
+ /* We shouldn't get here - we should already have quit */
break;
}
static int
print_radiotap_field(netdissect_options *ndo,
- struct cpack_state *s, u_int32_t bit, u_int8_t *flags,
- struct radiotap_state *state, u_int32_t presentflags)
+ struct cpack_state *s, uint32_t bit, uint8_t *flags,
+ struct radiotap_state *state, uint32_t presentflags)
{
union {
int8_t i8;
- u_int8_t u8;
+ uint8_t u8;
int16_t i16;
- u_int16_t u16;
- u_int32_t u32;
- u_int64_t u64;
+ uint16_t u16;
+ uint32_t u32;
+ uint64_t u64;
} u, u2, u3, u4;
int rc;
rc = cpack_uint8(s, &u3.u8);
break;
case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: {
- u_int8_t vns[3];
- u_int16_t length;
- u_int8_t subspace;
+ uint8_t vns[3];
+ uint16_t length;
+ uint8_t subspace;
if ((cpack_align_and_reserve(s, 2)) == NULL) {
rc = -1;
struct cpack_state cpacker;
struct ieee80211_radiotap_header *hdr;
- u_int32_t present, next_present;
- u_int32_t presentflags = 0;
- u_int32_t *presentp, *last_presentp;
+ uint32_t present, next_present;
+ uint32_t presentflags = 0;
+ uint32_t *presentp, *last_presentp;
enum ieee80211_radiotap_type bit;
int bit0;
u_int len;
- u_int8_t flags;
+ uint8_t flags;
int pad;
u_int fcslen;
struct radiotap_state state;
ND_PRINT((ndo, "%s", tstr));
return caplen;
}
- cpack_init(&cpacker, (u_int8_t *)hdr, len); /* align against header start */
+ cpack_init(&cpacker, (uint8_t *)hdr, len); /* align against header start */
cpack_advance(&cpacker, sizeof(*hdr)); /* includes the 1st bitmap */
for (last_presentp = &hdr->it_present;
IS_EXTENDED(last_presentp) &&
ieee802_11_avs_radio_print(netdissect_options *ndo,
const u_char *p, u_int length, u_int caplen)
{
- u_int32_t caphdr_len;
+ uint32_t caphdr_len;
if (caplen < 8) {
ND_PRINT((ndo, "%s", tstr));
{
u_int caplen = h->caplen;
u_int length = h->len;
- u_int32_t msgcode;
+ uint32_t msgcode;
if (caplen < 4) {
ND_PRINT((ndo, "%s", tstr));
projects / tcpdump / blobdiff