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ap: Use ie_tlv_builder in ap_build_beacon_pr_head

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Andrew Zaborowski 2017-09-30 04:28:07 +02:00 committed by Denis Kenzior
parent ba78950c83
commit 3c64d21e34
1 changed files with 19 additions and 14 deletions
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33
src/ap.c
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@ -523,10 +523,12 @@ static size_t ap_build_beacon_pr_head(struct ap_state *ap,
const uint8_t *dest, uint8_t *out_buf) const uint8_t *dest, uint8_t *out_buf)
{ {
struct mmpdu_header *mpdu = (void *) out_buf; struct mmpdu_header *mpdu = (void *) out_buf;
size_t len; unsigned int len;
uint16_t capability = IE_BSS_CAP_ESS | IE_BSS_CAP_PRIVACY; uint16_t capability = IE_BSS_CAP_ESS | IE_BSS_CAP_PRIVACY;
const uint8_t *bssid = device_get_address(ap->device); const uint8_t *bssid = device_get_address(ap->device);
uint32_t minr, maxr, count, r; uint32_t minr, maxr, count, r;
uint8_t *rates;
struct ie_tlv_builder builder;
memset(mpdu, 0, 36); /* Zero out header + non-IE fields */ memset(mpdu, 0, 36); /* Zero out header + non-IE fields */
@ -541,16 +543,18 @@ static size_t ap_build_beacon_pr_head(struct ap_state *ap,
/* Body non-IE fields */ /* Body non-IE fields */
l_put_le16(ap->beacon_interval, out_buf + 32); /* Beacon Interval */ l_put_le16(ap->beacon_interval, out_buf + 32); /* Beacon Interval */
l_put_le16(capability, out_buf + 34); /* Capability Info */ l_put_le16(capability, out_buf + 34); /* Capability Info */
len = 36;
ie_tlv_builder_init(&builder);
builder.tlv = out_buf + 36;
/* SSID IE */ /* SSID IE */
out_buf[len++] = IE_TYPE_SSID; ie_tlv_builder_next(&builder, IE_TYPE_SSID);
out_buf[len++] = strlen(ap->ssid); ie_tlv_builder_set_length(&builder, strlen(ap->ssid));
memcpy(out_buf + len, ap->ssid, strlen(ap->ssid)); memcpy(ie_tlv_builder_get_data(&builder), ap->ssid, strlen(ap->ssid));
len += strlen(ap->ssid);
/* Supported Rates IE */ /* Supported Rates IE */
out_buf[len++] = IE_TYPE_SUPPORTED_RATES; ie_tlv_builder_next(&builder, IE_TYPE_SUPPORTED_RATES);
rates = ie_tlv_builder_get_data(&builder);
minr = l_uintset_find_min(ap->rates); minr = l_uintset_find_min(ap->rates);
maxr = l_uintset_find_max(ap->rates); maxr = l_uintset_find_max(ap->rates);
@ -563,18 +567,19 @@ static size_t ap_build_beacon_pr_head(struct ap_state *ap,
if (count == 0) if (count == 0)
flag = 0x80; flag = 0x80;
out_buf[len + 1 + count++] = r | flag; *rates++ = r | flag;
} }
out_buf[len++] = count; ie_tlv_builder_set_length(&builder, rates -
len += count; ie_tlv_builder_get_data(&builder));
/* DSSS Parameter Set IE for DSSS, HR, ERP and HT PHY rates */ /* DSSS Parameter Set IE for DSSS, HR, ERP and HT PHY rates */
out_buf[len++] = IE_TYPE_DSSS_PARAMETER_SET; ie_tlv_builder_next(&builder, IE_TYPE_DSSS_PARAMETER_SET);
out_buf[len++] = 1; ie_tlv_builder_set_length(&builder, 1);
out_buf[len++] = ap->channel; ((uint8_t *) ie_tlv_builder_get_data(&builder))[0] = ap->channel;
return len; ie_tlv_builder_finalize(&builder, &len);
return 36 + len;
} }
/* Beacon / Probe Response frame portion after the TIM IE */ /* Beacon / Probe Response frame portion after the TIM IE */