Mercurial > dropbear

annotate list.h @ 1715:3974f087d9c0

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Disallow leading lines before the ident for server (#102) Per RFC4253 4.2 clients must be able to process other lines of data before the version string, server behavior is not defined neither with MUST/SHOULD nor with MAY. If server process up to 50 lines too - it may cause too long hanging session with invalid/evil client that consume host resources and potentially may lead to DDoS on poor embedded boxes. Let's require first line from client to be version string and fail early if it's not - matches both RFC and real OpenSSH behavior.
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Mon, 15 Jun 2020 18:22:18 +0500
parents 9169e4e7cbee
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 625
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1 #ifndef DROPBEAR_DROPBEAR_LIST_H
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
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2 #define DROPBEAR_DROPBEAR_LIST_H
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4 struct _m_list;
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6 struct _m_list_elem {
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7 void *item;
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8 struct _m_list_elem *next;
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9 struct _m_list_elem *prev;
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10 struct _m_list *list;
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11 };
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13 typedef struct _m_list_elem m_list_elem;
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15 struct _m_list {
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16 m_list_elem *first;
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17 m_list_elem *last;
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18 };
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20 typedef struct _m_list m_list;
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21
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22 m_list * list_new(void);
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23 void list_append(m_list *list, void *item);
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24 /* returns the item for the element removed */
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25 void * list_remove(m_list_elem *elem);
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27
1036
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
parents: 625
diff changeset
28 #endif /* DROPBEAR_DROPBEAR_LIST_H */