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EAP-pwd: Remove struct eap_pwd_hdr

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This structure was not really used for anything apart from figuring out
length of the EAP-pwd header (and even that in a way that would not work
with fragmentation). Since the bitfields in the structure could have
been problematic depending on target endianness, remove this unnecessary
structure.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2011-11-19 16:52:52 +02:00
parent e547e071e1
commit 5419d6afed
3 changed files with 7 additions and 14 deletions
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7
src/eap_common/eap_pwd_common.h
View file

@ -35,13 +35,8 @@ typedef struct group_definition_ {
/*
* EAP-pwd header, included on all payloads
* L(1 bit) | M(1 bit) | exch(6 bits) | total_length(if L is set)
*/
struct eap_pwd_hdr {
u8 l_bit:1;
u8 m_bit:1;
u8 exch:6;
u8 total_length[0]; /* included when l_bit is set */
} STRUCT_PACKED;
#define EAP_PWD_OPCODE_ID_EXCH 1
#define EAP_PWD_OPCODE_COMMIT_EXCH 2

5
src/eap_peer/eap_pwd.c
View file

@ -423,8 +423,7 @@ eap_pwd_perform_commit_exchange(struct eap_sm *sm, struct eap_pwd_data *data,
BN_bn2bin(y, element + BN_num_bytes(data->grp->prime) + offset);
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD,
sizeof(struct eap_pwd_hdr) +
BN_num_bytes(data->grp->order) +
1 + BN_num_bytes(data->grp->order) +
(2 * BN_num_bytes(data->grp->prime)),
EAP_CODE_RESPONSE, eap_get_id(reqData));
if (resp == NULL)
@ -633,7 +632,7 @@ eap_pwd_perform_confirm_exchange(struct eap_sm *sm, struct eap_pwd_data *data,
H_Final(&ctx, conf);
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD,
sizeof(struct eap_pwd_hdr) + SHA256_DIGEST_LENGTH,
1 + SHA256_DIGEST_LENGTH,
EAP_CODE_RESPONSE, eap_get_id(reqData));
if (resp == NULL)
goto fin;

9
src/eap_server/eap_server_pwd.c
View file

@ -156,8 +156,8 @@ eap_pwd_build_id_req(struct eap_sm *sm, struct eap_pwd_data *data, u8 id)
wpa_printf(MSG_DEBUG, "EAP-pwd: ID/Request");
req = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD,
sizeof(struct eap_pwd_hdr) +
sizeof(struct eap_pwd_id) + data->id_server_len,
1 + sizeof(struct eap_pwd_id) +
data->id_server_len,
EAP_CODE_REQUEST, id);
if (req == NULL) {
eap_pwd_state(data, FAILURE);
@ -257,8 +257,7 @@ eap_pwd_build_commit_req(struct eap_sm *sm, struct eap_pwd_data *data, u8 id)
BN_bn2bin(y, element + BN_num_bytes(data->grp->prime) + offset);
req = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD,
sizeof(struct eap_pwd_hdr) +
(2 * BN_num_bytes(data->grp->prime)) +
1 + (2 * BN_num_bytes(data->grp->prime)) +
BN_num_bytes(data->grp->order),
EAP_CODE_REQUEST, id);
if (req == NULL)
@ -385,7 +384,7 @@ eap_pwd_build_confirm_req(struct eap_sm *sm, struct eap_pwd_data *data, u8 id)
os_memcpy(data->my_confirm, conf, SHA256_DIGEST_LENGTH);
req = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_PWD,
sizeof(struct eap_pwd_hdr) + SHA256_DIGEST_LENGTH,
1 + SHA256_DIGEST_LENGTH,
EAP_CODE_REQUEST, id);
if (req == NULL)
goto fin;