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