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ie: Mobility Domain IE utilities

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This commit is contained in:
Andrew Zaborowski 2016-10-28 05:59:49 +02:00 committed by Denis Kenzior
parent 90ea26bec5
commit b20f1a2d50
2 changed files with 62 additions and 0 deletions
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54
src/ie.c
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@ -1362,3 +1362,57 @@ int ie_parse_supported_rates_from_data(const uint8_t *data, uint8_t len,
return ie_parse_supported_rates(&iter, set);
}
int ie_parse_mobility_domain(struct ie_tlv_iter *iter, uint16_t *mdid,
bool *ft_over_ds, bool *resource_req)
{
const uint8_t *data;
if (ie_tlv_iter_get_length(iter) != 3)
return -EINVAL;
data = ie_tlv_iter_get_data(iter);
if (mdid)
*mdid = l_get_le16(data);
if (ft_over_ds)
*ft_over_ds = (data[2] & 0x01) > 0;
if (resource_req)
*resource_req = (data[2] & 0x02) > 0;
return 0;
}
int ie_parse_mobility_domain_from_data(const uint8_t *data, uint8_t len,
uint16_t *mdid,
bool *ft_over_ds, bool *resource_req)
{
struct ie_tlv_iter iter;
ie_tlv_iter_init(&iter, data, len);
if (!ie_tlv_iter_next(&iter))
return -EMSGSIZE;
if (ie_tlv_iter_get_tag(&iter) != IE_TYPE_MOBILITY_DOMAIN)
return -EPROTOTYPE;
return ie_parse_mobility_domain(&iter, mdid, ft_over_ds, resource_req);
}
bool ie_build_mobility_domain(uint16_t mdid, bool ft_over_ds, bool resource_req,
uint8_t *to)
{
*to++ = IE_TYPE_MOBILITY_DOMAIN;
*to++ = 3;
l_put_le16(mdid, to);
to[2] =
(ft_over_ds ? 0x01 : 0) |
(resource_req ? 0x02 : 0);
return true;
}

8
src/ie.h
View File

@ -291,3 +291,11 @@ int ie_parse_supported_rates(struct ie_tlv_iter *iter,
struct l_uintset **set);
int ie_parse_supported_rates_from_data(const uint8_t *data, uint8_t len,
struct l_uintset **set);
int ie_parse_mobility_domain(struct ie_tlv_iter *iter, uint16_t *mdid,
bool *ft_over_ds, bool *resource_req);
int ie_parse_mobility_domain_from_data(const uint8_t *data, uint8_t len,
uint16_t *mdid,
bool *ft_over_ds, bool *resource_req);
bool ie_build_mobility_domain(uint16_t mdid, bool ft_over_ds,
bool resource_req, uint8_t *to);