1 #define SSH2_GSS_OIDTYPE 0x06
2 typedef void *Ssh_gss_ctx;
3 typedef void *Ssh_gss_name;
5 typedef enum Ssh_gss_stat {
7 SSH_GSS_S_CONTINUE_NEEDED,
13 #define SSH_GSS_S_COMPLETE SSH_GSS_OK
15 typedef struct Ssh_gss_buf {
20 #define SSH_GSS_EMPTY_BUF (Ssh_gss_buf) {0,NULL}
22 #define SSH_GSS_CLEAR_BUF(buf) do { \
27 /* Functions, provided by either wingss.c or uxgss.c */
30 * Do startup-time initialisation for using GSSAPI. (On Windows,
31 * for instance, this dynamically loads the GSSAPI DLL and
32 * retrieves some function pointers.)
34 * Return value is 1 on success, or 0 if initialisation failed.
36 * May be called multiple times (since the most convenient place
37 * to call it _from_ is the ssh.c setup code), and will harmlessly
38 * return success if already initialised.
40 int ssh_gss_init(void);
43 * Fills in buf with a string describing the GSSAPI mechanism in
44 * use. buf->data is not dynamically allocated.
46 Ssh_gss_stat ssh_gss_indicate_mech(Ssh_gss_buf *buf);
49 * Converts a name such as a hostname into a GSSAPI internal form,
50 * which is placed in "out". The result should be freed by
51 * ssh_gss_release_name().
53 Ssh_gss_stat ssh_gss_import_name(char *in, Ssh_gss_name *out);
56 * Frees the contents of an Ssh_gss_name structure filled in by
57 * ssh_gss_import_name().
59 Ssh_gss_stat ssh_gss_release_name(Ssh_gss_name *name);
62 * The main GSSAPI security context setup function. The "out"
63 * parameter will need to be freed by ssh_gss_free_tok.
65 Ssh_gss_stat ssh_gss_init_sec_context(Ssh_gss_ctx *ctx, Ssh_gss_name name, int delegate,
66 Ssh_gss_buf *in, Ssh_gss_buf *out);
69 * Frees the contents of an Ssh_gss_buf filled in by
70 * ssh_gss_init_sec_context(). Do not accidentally call this on
71 * something filled in by ssh_gss_get_mic() (which requires a
72 * different free function) or something filled in by any other
75 Ssh_gss_stat ssh_gss_free_tok(Ssh_gss_buf *);
78 * Acquires the credentials to perform authentication in the first
79 * place. Needs to be freed by ssh_gss_release_cred().
81 Ssh_gss_stat ssh_gss_acquire_cred(Ssh_gss_ctx *);
84 * Frees the contents of an Ssh_gss_ctx filled in by
85 * ssh_gss_acquire_cred().
87 Ssh_gss_stat ssh_gss_release_cred(Ssh_gss_ctx *);
90 * Gets a MIC for some input data. "out" needs to be freed by
93 Ssh_gss_stat ssh_gss_get_mic(Ssh_gss_ctx ctx, Ssh_gss_buf *in,
97 * Frees the contents of an Ssh_gss_buf filled in by
98 * ssh_gss_get_mic(). Do not accidentally call this on something
99 * filled in by ssh_gss_init_sec_context() (which requires a
100 * different free function) or something filled in by any other
103 Ssh_gss_stat ssh_gss_free_mic(Ssh_gss_buf *);
106 * Return an error message after authentication failed. The
107 * message string is returned in "buf", with buf->len giving the
108 * number of characters of printable message text and buf->data
109 * containing one more character which is a trailing NUL.
110 * buf->data should be manually freed by the caller.
112 Ssh_gss_stat ssh_gss_display_status(Ssh_gss_ctx, Ssh_gss_buf *buf);