fe73b469e8
Dialog token is only 8 bits and maintaining u32 version of it in struct fst_group resulted in incorrect wrap-around behavior in fst_group_assign_dialog_token(). It was possible to assign u8 dialog_token value 0 because of this. Fix this by using u8 variable consistently. Signed-off-by: Jouni Malinen <j@w1.fi>
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
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* FST module - FST group object definitions
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* Copyright (c) 2014, Qualcomm Atheros, Inc.
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef FST_GROUP_H
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#define FST_GROUP_H
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struct fst_group {
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char group_id[IFNAMSIZ + 1];
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struct dl_list ifaces;
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u8 dialog_token;
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u32 fsts_id;
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struct dl_list global_groups_lentry;
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};
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struct session_transition_ie;
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#define foreach_fst_group_iface(g, i) \
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dl_list_for_each((i), &(g)->ifaces, struct fst_iface, group_lentry)
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struct fst_group * fst_group_create(const char *group_id);
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void fst_group_attach_iface(struct fst_group *g, struct fst_iface *i);
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void fst_group_detach_iface(struct fst_group *g, struct fst_iface *i);
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void fst_group_delete(struct fst_group *g);
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void fst_group_update_ie(struct fst_group *g);
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static inline Boolean fst_group_has_ifaces(struct fst_group *g)
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{
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return !dl_list_empty(&g->ifaces);
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}
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static inline struct fst_iface * fst_group_first_iface(struct fst_group *g)
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{
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return dl_list_first(&g->ifaces, struct fst_iface, group_lentry);
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}
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static inline const char * fst_group_get_id(struct fst_group *g)
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{
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return g->group_id;
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}
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Boolean fst_group_delete_if_empty(struct fst_group *group);
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struct fst_iface * fst_group_get_iface_by_name(struct fst_group *g,
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const char *ifname);
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struct fst_iface *
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fst_group_find_new_iface_by_stie(struct fst_group *g,
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struct fst_iface *iface,
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const u8 *peer_addr,
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const struct session_transition_ie *stie,
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u8 *iface_peer_addr);
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struct fst_iface *
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fst_group_get_new_iface_by_stie_and_mbie(
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struct fst_group *g, const u8 *mb_ies_buff, size_t mb_ies_size,
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const struct session_transition_ie *stie, u8 *iface_peer_addr);
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u8 fst_group_assign_dialog_token(struct fst_group *g);
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u32 fst_group_assign_fsts_id(struct fst_group *g);
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extern struct dl_list fst_global_groups_list;
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#define foreach_fst_group(g) \
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dl_list_for_each((g), &fst_global_groups_list, \
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struct fst_group, global_groups_lentry)
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static inline struct fst_group * fst_first_group(void)
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{
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return dl_list_first(&fst_global_groups_list, struct fst_group,
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global_groups_lentry);
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}
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#endif /* FST_GROUP_H */
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